2024-03-29T06:24:03Z
https://ced.petra.ac.id/index.php/civ/oai
oai:puslit2.petra.ac.id:article/16655
2019-09-18T04:34:43Z
civ:ART
oai:puslit2.petra.ac.id:article/19534
2021-04-20T02:33:10Z
civ:ART
driver
Managing Pre-Construction and Construction Risks on Project Sites in Abuja-Nigeria
Jimoh, Richard A.
Sani, Momoh A
Adoza, Abdulahi I
Yahaya, Isah
Construction
process
pre-construction
risk
risk management
risk response.
Managing risks in construction projects has been acknowledged as a key direction process for the purposes of attaining the project goal in terms of time, cost, quality, safety, and environmental sustainability. Hence, the paper evaluated pre-construction and construction risks on active project sites in Abuja-Nigeria. This was achieved using survey method through the self-administration of 35 questionnaires to the professionals handling the 35 identified projects being undertaking at that time. Results showed that errors and omissions in design and improperly defined project scope had mean score values of 3.03 and 2.54, respectively, were the construction risks most experienced by the professionals during pre-construction. On the other hand, fluctuation in market prices and delays with mean score values of 3.14 and 2.74, respectively, were the construction risks experienced by the professionals during the construction phase of the projects. It is recommended that procurement methods such as construction management should be adopted and stakeholders should keep to their own side of the bargain to avoid unnecessary delays.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
0
https://ced.petra.ac.id/index.php/civ/article/view/19534
10.9744/ced.18.1.1-7
Civil Engineering Dimension; Vol. 18 No. 1 (2016): MARCH 2016; 1-7
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/19534/18934
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/19535
2021-04-20T02:33:10Z
civ:ART
driver
Effect of Cement Replacement with Carbide Waste on the Strength of Stabilized Clay Subgrade
Muntohar, Agus Setyo
Hartono, Edi
Diana, Wilis
Rahmawati, Anita
Carbide waste
cement replacement
soil stabilization
split tensile strength
subgrade
unconfined compressive strength.
Cement is commonly used for soil stabilization and many other ground improvement techniques. Cement is believed to be very good to improve the compressive and split-tensile strength of clay subgrades. In some application cement could be partly or fully replaced with carbide waste. This research is to study the effectiveness of the cement replacement and to find the maximum carbide waste content to be allowed for a clay subgrade. The quantities of cement replaced with the carbide waste were 30, 50, 70, 90, and 100% by its mass. The results show that replacing the cement with carbide waste decreased both the compressive and split tensile strength. Replacing cement content with carbide waste reduced its ability for stabilization. The carbide waste content should be less than 70% of the cement to provide a sufficient stabilizing effect on a clay subgrade.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/19535
10.9744/ced.18.1.8-15
Civil Engineering Dimension; Vol. 18 No. 1 (2016): MARCH 2016; 8-15
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/19535/18935
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/19536
2021-04-20T02:33:10Z
civ:ART
driver
Predicting the Response of Shear-critical Reinforced Concrete Beams using Response-2000 and SNI 2847:2013
Suryanto, Benny
Morgan, R.
Han, A.L.
Analysis
classic beam test
design
Response 2000
SNI 2847
2013
shear.
This study investigates the accuracy of Response-2000 in predicting the response of shear-critical reinforced concrete beams. The experimental data selected was that obtained by Vecchio and Shim in 2004 on twelve reinforced concrete beams which sought to replicate beams originally tested by Bresler and Scordelis in the early 1960s. This study also aims to compare the results obtained to the predictions of SNI 2847:2013. It is demonstrated that Response-2000 is capable of providing accurate predictions of load-deflection responses up to the peak load, but underestimates the ductility of beams that exhibit a mixed flexure-shear failure mode. It is also shown that both methods provide conservative predictions of the shear strength of beams with no shear reinforcement, with the software providing more consistent and reliable predictions of shear strength of beams containing shear reinforcement.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
0
https://ced.petra.ac.id/index.php/civ/article/view/19536
10.9744/ced.18.1.16-24
Civil Engineering Dimension; Vol. 18 No. 1 (2016): MARCH 2016; 16-24
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/19536/18936
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/19537
2021-04-20T02:33:10Z
civ:ART
driver
The Application of Statistical Design of Experiments to Study the In-Plane Shear Behaviour of Hybrid Composite Sandwich Panel
Fajrin, Jauhar
Design of experiment
hybrid composite
in-plane shear
sandwich panel
statistical analysis.
This paper presents a statistical aspect of experimental study on the in-plane shear behaviour of hybrid composite sandwich panel with intermediate layer. The study was aimed at providing information of how significant the contribution of intermediate layer to the in-plane shear behaviour of new developed sandwich panel. The investigation was designed as a single factor experimental design and the results were throughly analysed with statistics software; Minitab 15. The panels were tested by applying a tensile force along the diagonal of the test frame simulating pure shear using a 100 kN MTS servo-hydraulic UTM. The result shows that the incorporation of intermediate layer has sinificantly enhanced the in-plane shear behaviour of hybrid composite sandwich panel. The statistical analysis shows that the value of F0 is much higher than the value of Ftable, which has a meaning that the improvement provided by the incorporation of intermediate layer is statistically significant.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
0
https://ced.petra.ac.id/index.php/civ/article/view/19537
10.9744/ced.18.1.25-30
Civil Engineering Dimension; Vol. 18 No. 1 (2016): MARCH 2016; 25-30
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/19537/18937
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/19538
2021-04-20T02:30:03Z
civ:ART
driver
oai:puslit2.petra.ac.id:article/19540
2021-04-20T02:33:10Z
civ:ART
driver
Location Analysis of Freight Distribution Terminal of Jakarta City, Indonesia
Nahry, Nahry
Tjahjono, Tri
Iriantika, Bima
Semedi, Jarot Mulyo
Best location
consolidation
freight distribution terminals
Currently Jakarta has two freight terminals, namely Pulo Gebang and Tanah Merdeka. But, both terminals are just functioned for parking and have not been utilized properly yet, e.g. for consolidation. Goods consolidation, which is usually performed in distribution terminal, may reduce number of freight flow within the city. This paper is aimed to determine the best location of distribution terminal in Jakarta among those two terminals and two additional alternative sites, namely Lodan and Rawa Buaya. It is initialized by the identification of important factors that affect the location selection. It is carried out by Likert analysis through the questionnaires distributed to logistics firms. The best location is determined by applying Overlay Analysis using ArcGIS 9.2. Four grid maps are produced to represent the accessibility, cost, time, and environment factors as the important factors of location. The result shows that the ranking from the best is; Lodan, Tanah Merdeka, Pulo Gebang, and Rawa Buaya.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
0
https://ced.petra.ac.id/index.php/civ/article/view/19540
10.9744/ced.18.1.38-48
Civil Engineering Dimension; Vol. 18 No. 1 (2016): MARCH 2016; 38-48
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/19540/18940
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/19541
2021-04-20T02:33:10Z
civ:ART
driver
Guideline for Survey, Investigation, and Design of Black Spot Location (SID-BSL) and Its Application in Lampung Province, Indonesia
Susilo, Budi Hartanto
EAN analysis
guideline of SID-BSL
prioritization technique
weighted accident number.
In connection with the government's obligation to take responsibility for ensuring the safety of traffic and road transport for road users, it is necessary to conduct Surveys, Investigations, and Design of Black Spot Location (SID-BSL) to reduce traffic accident. Hence a guideline in conducting SID-BSL is needed. In this study, the author compiled a simple technique of prioritization for SID-BSL procedure and applies it to a research on National Roads in the Lampung Province. The technique of prioritization is simplified with four phase activities namely Preparation, Initial Analysis, Detail Survey, and Detail Analysis. The analysis technique is based on the ranking of Black Spot Locations using weighted accident number (WAN). Application procedure is applied on 237 events of accident on the National Roads in Lampung Province resulting five selected BSLs to be treated according to the availability of funds.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
0
https://ced.petra.ac.id/index.php/civ/article/view/19541
10.9744/ced.18.1.49-56
Civil Engineering Dimension; Vol. 18 No. 1 (2016): MARCH 2016; 49-56
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/19541/18941
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/19542
2021-04-20T02:33:10Z
civ:ART
driver
Absorption Characteristics of Cement Combination Concrete Containing Portland Cement, fly ash, and Metakaolin
Olufemi, Folagbade Samuel
Blended cement
fly ash
metakaolin
permeation resistance
waterabsorption.
The resistance to water penetration of cement combination concretes containing Portland cement (PC), fly ash (FA), and metakaolin (MK) have been investigated at different water/cement (w/c) ratios, 28-day strengths, and depths of water penetration using their material costs and embodied carbon-dioxide (eCO2) contents. Results revealed that, at equal w/c ratio, eCO2 content reduced with increasing content of FA and MK. MK contributed to the 28-day strengths more than FA. Compared with PC, FA reduced cost and increased the depth of water penetration, MK increased cost and reduced the depth of water penetration, and their ternary combinations become beneficial. At equal strengths and levels of resistance to water penetration, most of the cement combination concretes are more environmentally compatible and costlier than PC concrete. Only MK binary cement concretes with 10%MK content or more and ternary cement concretes at a total replacement level of 55% with 10%MK content or more have higher resistance to water penetration than PC concrete.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
0
https://ced.petra.ac.id/index.php/civ/article/view/19542
10.9744/ced.18.1.57-64
Civil Engineering Dimension; Vol. 18 No. 1 (2016): MARCH 2016; 57-64
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/19542/18942
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/20010
2023-02-14T05:55:58Z
civ:ART
driver
Nonlinear Analysis of Reinforced Geopolymer Concrete Beams
Chong, Karen
Suryanto, Benny
Tambusay, Asdam
Suprobo, Priyo
brittle
diagonal crack
DIC
ductile
flexure
monitoring
shear
strain
To decarbonise the current construction sector and meet the global net-zero target, there is a pressing need to develop an environmentally friendly alternative to Portland cement concrete. Alkali activated and geopolymer concrete have much to offer in this regard. At present, however, there is limited study on the behaviours of alkali activated structural members, particularly on flexural members, which encompass most practical design situations. This paper presents a database of 37 tests on slender alkali activated and geopolymer concrete beams available in the literature, with the aim to investigate the flexural strengths of this alternative concrete when used as a structural member. In addition, the results of nonlinear finite element analyses on fourteen reinforced geopolymer concrete beams are presented to highlight key influencing factors governing the behaviour and failure of flexural members. Of particular interest is to study the influence of reinforcement ratio, compressive strength, and material brittleness on the overall strength and ductility. Overall, it is shown that the flexural response of geopolymer concrete beams under short-term loading is comparable to that of ordinary reinforced concrete beams.
Institute of Research and Community Outreach - Petra Christian University
2022-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/20010
10.9744/ced.24.1.1-10
Civil Engineering Dimension; Vol. 24 No. 1 (2022): MARCH 2022; 1-10
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/20010/20622
Copyright (c) 2022 Benny Suryanto, Asdam Tambusay, Priyo Suprobo
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/20140
2021-04-20T02:30:01Z
civ:ART
driver
oai:puslit2.petra.ac.id:article/20141
2021-04-20T02:30:01Z
civ:ART
driver
oai:puslit2.petra.ac.id:article/20142
2021-04-20T02:30:01Z
civ:ART
driver
oai:puslit2.petra.ac.id:article/20143
2021-04-20T02:30:01Z
civ:ART
driver
oai:puslit2.petra.ac.id:article/20194
2021-04-20T02:30:01Z
civ:ART
driver
oai:puslit2.petra.ac.id:article/20195
2021-04-20T02:30:00Z
civ:ART
driver
oai:puslit2.petra.ac.id:article/20219
2021-04-20T02:30:00Z
civ:ART
driver
oai:puslit2.petra.ac.id:article/20643
2020-06-05T04:19:32Z
civ:ART
driver
A Numerical Investigation on the Structural Behavior of Deficient Steel Frames Strengthened using CFRP Composite
Keykha, Amir Hamzah
CFRP strengthening
deficient steel frames
numerical study
ultimate load capacity.
Carbon fiber reinforced polymers (CFRP) is one of the materials that is used to strengthen steel structures. Most studies on CFRP strengthening steel on structures have been done on beams and steel columns. No independent study has studied the effect of CFRP strengthening on the structural behavior of steel frames having initial deficiency.The deficiency in steel structures may be created due to the errors caused by construction and others.This study aims to carry out a numerical study on the efficiency of CFRP sheet on strengthening square hollow section (SHS) steel frames having initial deficiency. Seven specimens, five of which were strengthened using CFRP sheets, were analyzed. ANSYS software was used to analyze the SHS steel frames. The results showed that the coverage length, the width, and the number of CFRP layers have a significant effect on increasing and recovering the ultimate load capacity of the SHS steel frames having initial deficiency.
Institute of Research and Community Outreach - Petra Christian University
2018-04-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/20643
10.9744/ced.20.1.1-7
Civil Engineering Dimension; Vol. 20 No. 1 (2018): MARCH 2018; 1-7
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/20643/19403
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/20644
2020-06-05T04:19:32Z
civ:ART
driver
Development of the DKMQ Element for Analysis of Composite Laminated Folded Plate Structures
Wong, Foek Tjong
Widjaja, Kristofer
Discrete-Kirchhoff Mindlin quadrilateral element
composite laminated plate
folded plate
drilling degrees of freedom.
The discrete-Kirchhoff Mindlin quadrilateral (DKMQ) element has recently been developed for analysis of composite laminated plates. This paper presents further development of the DKMQ for analysis of composite laminated folded plates. In this development, a local coordinate system is set up for each element at its centroid. The DKMQ stiffness matrix is superimposed with that of the standard four-node plane stress quadrilateral element to obtain a 24-by-24 folded plate stiffness matrix in the local coordinate system. To avoid singularity of the stiffness matrix, a small stiffness coefficient is added in the entries corresponding to the drilling degrees of freedom. The local stiffness matrix and force vector are then transformed to the global ones and assembled. The accuracy and convergence of the folded plate element are assessed using a number of numerical examples. The results show that the element is accurate and converge well to the reference solutions.
Institute of Research and Community Outreach - Petra Christian University
2018-04-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/20644
10.9744/ced.20.1.8-15
Civil Engineering Dimension; Vol. 20 No. 1 (2018): MARCH 2018; 8-15
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/20644/19404
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/20645
2020-06-05T04:19:32Z
civ:ART
driver
Stabilising Potential of Sawdust Lignin based Extracts in Compressed Lateritic Bricks
O.A, Fadele,
O.J., Ata,
Compressed lateritic bricks
compressive strength
density
lignin based additives
stabilization.
Lignocellulosic materials are abundant in nature, rich in some functional groups, considered less harmful to human health and the environment.The resulting waste may be recycled for other beneficial uses. Lignin is known to be a natural binder in lignocellulosic materials and several studies have confirmed it has binding ability with soil particles. This paper studied its stabilising potential in compressed lateritic bricks, especially its effects on density and compressive strength properties of the bricks. Lignin additives extracted from sawdust were used to stabilise laterite, while the bricks were moulded with the UNIFE ram, a type of the CINVA ram. The laterite was stabilised at 4%, 8% and 12%, while cement stabilised samples and 0% (unstabilised laterite) samples prepared accordingly were used as controls. The results showed that the LBAs contributed to the strength gained by the bricks at 3, 7, 14 and 28 days air curing, while the bricks samples were categorised as high density.
Institute of Research and Community Outreach - Petra Christian University
2018-04-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/20645
10.9744/ced.20.1.16-20
Civil Engineering Dimension; Vol. 20 No. 1 (2018): MARCH 2018; 16-20
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/20645/19405
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/20646
2020-06-05T04:19:32Z
civ:ART
driver
Metaheuristic-Based Machine Learning System for Prediction of Compressive Strength based on Concrete Mixture Properties and Early-Age Strength Test Results
Prayogo, Doddy
Concrete compressive strength
early-age
machine learning
metaheuristic
prediction.
Estimating the accurate concrete strength has become a critical issue in civil engineering. The 28-day concrete cylinder test results depict the concrete's characteristic strength which was prepared and cast as part of the concrete work on the project. Waiting 28 days is important to guarantee the quality control of the procedure, even though it is a slow process. This research develops an advanced machine learning method to forecast the concrete compressive strength using the concrete mix proportion and early-age strength test results. Thirty-eight historical cases in total were used to create the intelligence prediction method. The results obtained indicate the effectiveness of the advanced hybrid machine learning strategy in forecasting the strength of the concrete with a comparatively high degree of accuracy calculated using 4 error indicators. As a result, the suggested study can provide a great advantage for construction project managers in decision-making procedures that depend on early strength results of the tests.
Institute of Research and Community Outreach - Petra Christian University
2018-04-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/20646
10.9744/ced.20.1.21-29
Civil Engineering Dimension; Vol. 20 No. 1 (2018): MARCH 2018; 21-29
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/20646/19406
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/20647
2020-06-05T04:19:32Z
civ:ART
driver
Wave Trajectory Study on the Coast of Lhoknga, Aceh Besar, Indonesia: A Numerical Model Approach
Setiawan, Ichsan
Irham, Mohammad
Numerical model
shoaling
wave distribution
refraction
trajectory.
A numerical model of wave trajectory using shoaling and refraction formula was proposed in the coastal waters of Lhoknga, Aceh Besar, Indonesia. The developed model used a two dimensional (2D) numerical methods for wave trajectory with the input of wave height and period; 0.62 m and 8 second for high tide and 0.47 m and 6 second for low tide. This model was tested on site during low tide and high tide conditions for verification. The purpose of this numerical study is to trace the distribution of wave trajectory because of shoaling, wave breaking, and wave refraction. The model determines the wave height and crest pattern of the ray wave trajectory. The simulation result shows the pattern of the wave propagation at Lhoknga beach moves from the northwest to the east and south of the coast. The model also informs that the maximum wave height during high tide condition is 1.72 m and 1.31 m during low tide condition. The result indicates that the coast of Lhoknga has moderate wave conditions caused by a gentle beach bathymetry slope.
Institute of Research and Community Outreach - Petra Christian University
2018-04-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/20647
10.9744/ced.20.1.30-34
Civil Engineering Dimension; Vol. 20 No. 1 (2018): MARCH 2018; 30-34
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/20647/19407
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/20648
2020-06-05T04:19:33Z
civ:ART
driver
Performance of an Existing Reinforced Concrete Building Designed in Accordance to Older Indonesian Seismic Code: A Case Study for a Hotel in Kupang, Indonesia
Pudjisuryadi, Pamuda
Lumantarna, Benjamin
Setiawan, Ryan
Handoko, Christian
Indonesian seismic code
non-linear time history analysis
reinforced concrete
seismic performance.
The recent seismic code SNI 1726-2012 is significantly different compared to the older code SNI 1726-2002. The seismic hazard map was significantly changed and the level of maximum considered earthquake was significantly increased. Therefore, buildings designed according to outdated code may not resist the higher demand required by newer code. In this study, seismic performance of Hotel X in Kupang, Indonesia which was designed based on SNI-1726-2002 is investigated. The structure was analyzed using Nonlinear Time History Analysis. The seismic load used was a spectrum consistent ground acceleration generated from El-Centro 18 May 1940 North-South component in accordance to SNI 1726-2012. The results show that Hotel X can resist maximum considered earthquake required by SNI 1726-2012. The maximum drift ratio is 0.81% which is lower than the limit set by FEMA 356-2000 (2%). Plastic hinge damage level is also lower than the allowance in ACMC 2001.
Institute of Research and Community Outreach - Petra Christian University
2018-04-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/20648
10.9744/ced.20.1.35-40
Civil Engineering Dimension; Vol. 20 No. 1 (2018): MARCH 2018; 35-40
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/20648/19408
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/20649
2020-06-05T04:19:33Z
civ:ART
driver
Evaluation of a Reinforced Concrete Wall Macroscopic Model for Coupled Nonlinear Shear-Flexure Interaction Response
Purnomo, Joko
Chandra, Jimmy
Shear-flexure interaction (SFI)
reinforced concrete shear wall (RC wall)
macroscopic model.
Reinforced concrete shear wall (RC wall) is an important element in tall buildings, which provides strength and stiffness against lateral loadings, e.g. earthquake and wind. Numerous researches have been conducted to study its nonlinear behavior via microscopic and macroscopic model. The later approach is currently being widely explored since it has many advantages compared to the preceding models. A well-known macroscopic model, namely Shear-Flexure-Interaction Multiple-Vertical-Line-Elements-Model (SFI-MVLEM) in the open source platform Open Sees, is capable of simulating the coupled nonlinear shear-flexure interaction response in the RC wall. This paper presents an evaluation to the applicability of SFI-MVLEM model to predict the coupled nonlinear shear-flexure behavior of RC wall specimens compared to experimental results in available literature. The analysis results show that the model is able to predict the behavior of RC wall considerably accurate in terms of hysteretic curves, cracking patterns, and contributions of shear and flexural displacement to total displacement.
Institute of Research and Community Outreach - Petra Christian University
2018-04-07
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/20649
10.9744/ced.20.1.41-50
Civil Engineering Dimension; Vol. 20 No. 1 (2018): MARCH 2018; 41-50
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/20649/19409
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21009
2021-10-05T02:42:02Z
civ:ART
oai:puslit2.petra.ac.id:article/21127
2020-06-05T04:19:33Z
civ:ART
driver
Influence of Particle Size Distribution of High Calcium Fly Ash on HVFA Mortar Properties
., Antoni
Wibawa, Hendra Surya
Hardjito, Djwantoro
Fly ash
high calcium
particle size distribution
superplasticizer demand
setting time
HVFA.
This study evaluates the effect of particle size distribution (PSD) of high calcium fly ash on high volume fly ash (HVFA) mortar characteristics. Four PSD variations of high calcium fly ash used were: unclassified fly ash and fly ash passing sieve No. 200, No. 325 and No. 400, respectively. The fly ash replacement ratio of the cementitious material ranged between 50-70%. The results show that with smaller fly ash particles size and higher levels of fly ash replacement, the workability of the mixture was increased with longer setting time. There was an increase in mortar compressive strength with finer fly ash particle size, compared to those with unclassified ones, with the highest strength was found at those with fly ash passing mesh No. 325. The increase was found due to better compactability of the mixture. Higher fly ash replacement reduced the mortar’s compressive strength, however, the rate was reduced when finer fly ash particles was used.
Institute of Research and Community Outreach - Petra Christian University
2018-10-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21127
10.9744/ced.20.2.51-56
Civil Engineering Dimension; Vol. 20 No. 2 (2018): SEPTEMBER 2018; 51-56
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21127/19499
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21128
2020-06-05T04:19:33Z
civ:ART
driver
One Dimensional Site Response Analysis of Liquefaction Potential along Coastal Area of Bengkulu City, Indonesia
Mase, Lindung Zalbuin
Liquefaction
non-linear analysis
coastal area
excess pore water pressure
This paper presents one dimensional non-linear site response analysis of liquefaction potential caused by the 2000 and the 2007 earthquakes in coastal area of Bengkulu City, Bengkulu, Indonesia. Site investigations, including Standard Penetration Test (SPT) and shear wave velocity (VS) measurement, were conducted in three locations along the coastal area of Bengkulu City. Further, the site investigation data were used in simulation of one-dimensional non-linear site response analysis by applying the synthetic ground motions at bedrock. The results show that liquefaction could happen at 0 to 1.5 m deep. This was indicated by the excess pore water pressure ratio (ru) which exceeded one. At depth between 1.5 m and 20 m, the excess pore water pressure almost reached the initial effective stress decreasing the effective confinement pressure close to zero. The results also indicated that liquefaction is possible to occur in this depth range if a stronger earthquake occurs.
Institute of Research and Community Outreach - Petra Christian University
2018-10-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21128
10.9744/ced.20.2.57-69
Civil Engineering Dimension; Vol. 20 No. 2 (2018): SEPTEMBER 2018; 57-69
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21128/19500
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21129
2020-06-05T04:19:33Z
civ:ART
driver
Displacement and Stress Function-based Linear and Quadratic Triangular Elements for Saint-Venant Torsional Problems
Purnomo, Joko
Tjong, Wong Foek
W.C., Wijaya
J.S., Putra
Saint-Venant torsion
multiply-connected section
torsional rigidity
homogeneous section
nonhomogeneous section
Torsional problems commonly arise in frame structural members subjected to unsymmetrical loading. Saint-Venant proposed a semi inverse method to develop the exact theory of torsional bars of general cross sections. However, the solution to the problem using an analytical method for a complicated cross section is cumbersome. This paper presents the adoption of the Saint-Venant theory to develop a simple finite element program based on the displacement and stress function approaches using the standard linear and quadratic triangular elements. The displacement based approach is capable of evaluating torsional rigidity and shear stress distribution of homogeneous and nonhomogeneous; isotropic, orthotropic, and anisotropic materials; in singly and multiply-connected sections. On the other hand, applications of the stress function approach are limited to the case of singly-connected isotropic sections only, due to the complexity on the boundary conditions. The results show that both approaches converge to exact solutions with high degree of accuracy.
Institute of Research and Community Outreach - Petra Christian University
2018-10-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21129
10.9744/ced.20.2.70-77
Civil Engineering Dimension; Vol. 20 No. 2 (2018): SEPTEMBER 2018; 70-77
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21129/19501
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21130
2020-06-05T04:19:33Z
civ:ART
driver
Considering the Effect of Motorcyclist Risk Tolerance in Accident Risk Management: A Preliminary Study
Malkhamah, Siti
Suparma, Latif Budi
da Costa, Don Gaspar Noesaku
Braking capability
margin of safety
risk acceptance and tolerance
safety factor
speed management.
Negative perceptions about accident are usually associated with speeding behavior. However, risk perception has not been considered in accident risk management. It is accepted as a personality matter, thus the number of accidents per year was used as accident risk tolerance indicator. Consequently, due to insufficient measurable indicators, it would be difficult to prevent the increasing speeding behavior. This paper discusses the improvement of accident risk tolerance indicators, i.e. safety factor and margin of safety, and their possible usage in speed management policies. These indicators were built based on the correlation between the results of interview and braking maneuver test. From this combine approach, using aggregated-individual and expert acceptance models, it was found that risk tolerance arose because motorcyclists accepted both the advantages and disadvantages gained from speeding, obtained through their riding frequency, duration of riding and/or accident involvement experienced. However, inappropriate speed due to miss-perception toward braking capability should be avoided. Inversely, an appropriate speed management should consider their travelling expectation
Institute of Research and Community Outreach - Petra Christian University
2018-10-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21130
10.9744/ced.20.2.78-85
Civil Engineering Dimension; Vol. 20 No. 2 (2018): SEPTEMBER 2018; 78-85
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21130/19502
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21131
2020-06-05T04:19:34Z
civ:ART
driver
Seismic Performance of Existing Building Retrofitted with VSL-Gensui Damper
Pudjisuryadi, Pamuda
Lumantarna, Benjamin
Hermawan, Tjhai Ferlinda
Gunawan, Teddy Tirta
Displacement
nonlinear time history
PPTIUG 1983
story drift
VSL-Gensui Damper.
Buildings designed using older code should be checked against the higher demand required by newer code. In this study, performance of Building T of Petra Christian University, Surabaya, Indonesia, which was designed with older Indonesian Seismic Code (PPTGIUG 1983) is investigated. The effectiveness of VSL-Gensui Damper application is also investigated as an effort to enhance the performance of the building. Nonlinear time history analysis was conducted to analyze the building. Spectrum consistent ground acceleration generated from El Centro 18 May 1940 North-South component in accordance to current seismic code was used for analysis. The result shows that the existing building cannot resist the demand specified by current code (SNI 1726:2012) as some frame element failures are detected. The performance is greatly enhanced after installation of VSL-Gensui Dampers. Roof story drift and displacement decreased as much as 9% and 14%, respectively as compared to existing building, and structural element failures were no longer observed.
Institute of Research and Community Outreach - Petra Christian University
2018-10-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21131
10.9744/ced.20.2.86-90
Civil Engineering Dimension; Vol. 20 No. 2 (2018): SEPTEMBER 2018; 86-90
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21131/19503
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21132
2020-06-05T04:19:34Z
civ:ART
driver
Improving Shear Strength Parameters of Sandy Soil using Enzyme-Mediated Calcite Precipitation Technique
Putra, Heriansyah
Yasuhara, Hideaki
Kinoshita, Naoki
., Erizal
Sudibyo, Tri
EMCP
shear strength
cohesion
internal friction
direct shear
UCS
Several methods have been established for their various potential applications as soil improvement technique, and recently the application of grouting technique using biological process have been proposed. This study discussed the applicability of enzyme-mediated calcite precipitation (EMCP) in improving the shear strength parameters of sandy soil. In this study, soil specimens were prepared and treated with the grouting solutions composed of urea, calcium chloride, magnesium sulfate and enzyme of urease. Evolutions in the cohesion and internal friction angle of the improved soil were examined through the direct shear tests. The presence of the precipitated materials, comprising 4.1 percent of the soil mass of the treated sand, generated a cohesion of 53 kPa. However, contrary to the improvement of cohesion, the friction angle is relatively constant. It indicated that the application of the EMCP technique has no significant impact on the friction angle
Institute of Research and Community Outreach - Petra Christian University
2018-10-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21132
10.9744/ced.20.2.91-95
Civil Engineering Dimension; Vol. 20 No. 2 (2018): SEPTEMBER 2018; 91-95
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21132/19504
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21133
2020-06-05T04:19:34Z
civ:ART
driver
Initial Surface Absorption of Cement Combination Concrete
Folagbade, Samuel Olufemi
Blended cement
concrete
initial surface absorption
permeation resistance
supple¬mentary cementitious materials
This paper investigated the initial surface absorption (ISAT) of concrete using Portland cement (PC) and some binary and ternary cement combinations containing fly ash (FA), silica fume (SF) and metakaolin (MK) as partial replacements for PC at equal water/ cement ratios and strengths. At equal water/cement ratios, the cement combination concretes have higher ISAT values than PC concrete at 28 days and the disparity reduced with increasing curing age due to improved pozzolanic reactivity of the supplementary cementitious materials. SF and MK as binary and ternary cement components performed better than FA due to their higher fineness, improved particle packing and higher pozzolanic reactivity. At equal strengths, FA binary cement concretes have the lowest ISAT values and these reduced with increasing content of FA. At total replacement levels more than 20%, all the ternary cement concretes have lower ISAT values than PC concrete and the values reduced with increasing total replacement level due to the beneficial effect of FA.
Institute of Research and Community Outreach - Petra Christian University
2018-10-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21133
10.9744/ced.20.2.96-101
Civil Engineering Dimension; Vol. 20 No. 2 (2018): SEPTEMBER 2018; 96-101
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21133/19564
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21134
2020-06-05T04:19:34Z
civ:ART
driver
A Comparative Study on Bio-Inspired Algorithms in Layout Optimization of Construction Site Facilities
Prayogo, Doddy
Sutanto, Jessica Chandra
Suryo, Hieronimus Enrico
Eric, Samuel
Site layout
optimization
bio-inspired algorithms
particle swarm optimization
artificial bee colony
symbiotic organisms search
A good arrangement of site layout on a construction project is a fundamental component of the project’s efficiency. Optimization on site layout is necessary in order to reduce the transportation cost of resources or personnel between facilities. Recently, the use of bio-inspired algorithms has received considerable critical attention in solving the engineering optimization problem. These methods have consistently provided better performance than traditional mathematical-based methods to a variety of engineering problems. This study compares the performance of particle swarm optimization (PSO), artificial bee colony (ABC), and symbiotic organisms search (SOS) algorithms in optimizing site layout planning problems. Three real-world case studies of layout optimization problems have been used in this study. The results show that SOS has a better performance in comparison to the other algorithms. Thus, this study provides useful insights to construction practitioners in the industry who are involved in dealing with optimization problems
Institute of Research and Community Outreach - Petra Christian University
2018-10-08
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21134
10.9744/ced.20.2.102-110
Civil Engineering Dimension; Vol. 20 No. 2 (2018): SEPTEMBER 2018; 102-110
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21134/19506
Copyright (c) 2018 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21255
2021-10-12T05:13:20Z
civ:ART
driver
Proposed Design Philosophy for Seismic-Resistant Buildings
Gunawan, Nanang
Han, Aylie
Gan, Buntara Sthenly
Earthquake magnitude
earthquake shaking
earthquake resistant-design
human casualties
seismic design
seismic intensity
Modern seismic design and technologies have undergone tremendous developments. In modern design codes, building structures subjected to high earthquake loads are allowed to experience plastic deformations without collapsing, and the design is permitted up to the ultimate strength. According to comparative results in Japan, the number of humans injured due to earthquakes is higher than the number of deaths/missing. Likewise, the number of residential buildings that collapsed are less than the partially damaged buildings. This outcome implies that residential buildings designed based on the revised seismic standards have good earthquake resistances. It also infers that the human deaths/injury casualties were not a result of the collapsed the structure, but due to the strong vibrations originated from the earthquake, yielding in the collapse of non-structural elements such as ceilings and bookshelves. This paper presents a proposed design philosophy that attempts to implement the effect of earthquakes to non-fatal human casualties
Institute of Research and Community Outreach - Petra Christian University
2019-03-01
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21255
10.9744/ced.21.1.1-5
Civil Engineering Dimension; Vol. 21 No. 1 (2019): MARCH 2019; 1-5
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21255/19646
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21502
2021-10-12T05:13:20Z
civ:ART
driver
Optimization of resource leveling problem under multiple objective criteria using a symbiotic organisms search
Prayogo, Doddy
Kusuma, Christianto Tirta
resource leveling
optimization
metaheuristic algorithms
particle swarm optimization
symbiotic organisms search
Bad scheduling and resource management can cause delays or cost overruns. Optimization in solving resource leveling is necessary to avoid those problems. Several objective criteria are used to solve resource leveling. Each of them has the same objective, which is to reduce the fluctuation of resource demand of the project. This study compares the performance of particle swarm optimization (PSO) and symbiotic organisms search (SOS) in solving resource leveling problems using separate objective functions in order to find which one produces a better solution. The results show that SOS produced a better solution than PSO, and one objective function is better in solving resource leveling than the others.
Institute of Research and Community Outreach - Petra Christian University
2019-03-01
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21502
10.9744/ced.21.1.43-49
Civil Engineering Dimension; Vol. 21 No. 1 (2019): MARCH 2019; 43-51
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21502/19684
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21572
2019-04-24T05:49:41Z
civ:ART
oai:puslit2.petra.ac.id:article/21573
2021-10-12T05:13:20Z
civ:ART
driver
Monitoring the Shear Fatigue Response of Reinforced Concrete Beams Subjected to Moving Loads using Digital Image Correlation
Suryanto, Benny
Staniforth, George
moving load
pulsating
shear
fatigue
DIC
Ncorr
A series of three reinforced concrete beams without shear reinforcement were tested to failure under a centre-span monotonic load, a centre-span pulsating load, and a stepwise-moving pulsating load. During each experiment, load-deflection response was continuously monitored and at several stages during the experiment, the load was briefly stopped for crack observations. In addition to this manual crack mapping, more detailed crack mappings were undertaken using the digital image correlation (DIC) technique, employing the open-source DIC software Ncorr. It was shown that while the three beams exhibited a similar mode of failure (i.e. shear), each beam displayed a rather distinctive overall behaviour, particularly with regard to the load-deflection response and the nature of crack initiation and propagation. Results from the DIC analysis are presented to provide direct evidence on the damage progression during the load cycles and discuss the reduced fatigue life exhibited by the beam subjected to stepwise-moving pulsating load
Institute of Research and Community Outreach - Petra Christian University
2019-03-01
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21573
10.9744/ced.21.1.6-12
Civil Engineering Dimension; Vol. 21 No. 1 (2019): MARCH 2019; 6-12
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21573/19682
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21574
2021-10-12T05:13:20Z
civ:ART
driver
The Correlation between Penetration Pressure Required to Install Pile Foundation and to Insert Bi-cones in Cone Penetration Test
Budi, Gogot Setyo
Tandiputra, Alvin Gilbert
Markho, Haven Kusuma
CPT
jacked-in pile
mobilize pressure
One of the common methods used to install pile foundation is hydraulic jacked-in machine. In this method, a pile is pushed down into the ground up to the predetermined depth. The method has similar principle to that of Cone Penetration Test (CPT). This paper presents the correlation between the mobilize pressure required to install pile foundations and that required to push the bi-cones that attached at the tip of CPT rod. The results show that the penetration pressure required to install the pile into very soft clay layer is independent of pile diameter. The penetration pressure required to install the pile into soft to stiff clay layers depends on the pile diameter. The larger the diameter of piles, the smaller the penetration pressures required. The penetration pressure required to install the pile into stiff expansive clay layer beyond the depth of active zone can be predicted as high as the pressure calculated form CPT.
Institute of Research and Community Outreach - Petra Christian University
2019-03-01
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21574
10.9744/ced.21.1.13-18
Civil Engineering Dimension; Vol. 21 No. 1 (2019): MARCH 2019; 13-18
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21574/19650
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21575
2021-10-12T05:13:20Z
civ:ART
driver
Impact of Earthquakes on the Transportation Infrastructure of Indonesia: A Preliminary Study
Amirsardari, Anita
Sofi, Massoud
Lumantarna, Elisa
Imran, Iswandi
Duffield, Colin
Earthquake vulnerability
transportation system
infrastructure
Indonesia
seismic risk
Indonesia is a high seismic region and one of the most vulnerable countries prone to experiencing damaging earthquakes. It is critical that lifeline infrastructure remain operational or is quickly remediated after an earthquake to minimise physical, social, and economical losses. Not much work has been carried out in understanding the effect of earthquakes on transportation infrastructure systems. This study aims to gain a better understanding of the impact of earthquakes on the transportation infrastructure in Indonesia. This is achieved by firstly reviewing the frameworks and tools for conducting seismic risk assessment of lifeline infrastructure. The critical components of the transportation system are then identified. Various forms of transportation infrastructure damage caused by earthquakes are discussed. An overview of the damaging earthquakes for the past 20 years is presented. Finally, conclusions and recommendations are provided about the future work required for conducting risk assessment of the transportation infrastructure in Indonesia
Institute of Research and Community Outreach - Petra Christian University
2019-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21575
10.9744/ced.21.1.19-28
Civil Engineering Dimension; Vol. 21 No. 1 (2019): MARCH 2019; 19-28
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21575/19651
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21576
2021-10-12T05:13:20Z
civ:ART
driver
Eco Drainage System for Surface Runoff Reduction in Indonesia
Kusumastuti, Cilcia
Chandra, Herry Pintardi
Wibisono, Kristanto
Hartono, Antonius Christopher
Eco-drainage system
rainwater harvesting
residential area
surface runoff
stormwater
Sustainable urban drainage systems (SUDS) or eco-drainage system has been implemented in developed countries. The aims of the construction of the system are: to minimize surface runoff by capturing and temporarily retain it, to improve the quality of surface runoff, to infiltrate stormwater, to increase evapotranspiration, and to enhance landscape aesthetic value. Learning from the success of the implementation of SUDS in developed countries, the paper presents a model of eco-drainage system for residential area in Indonesia, which consists of rainwater harvesting system (RWHS) and retention ponds. A simulation of stormwater and surface runoff utilization is also presented. At 14,602.26 m2 bare land in Mojokerto Regency, East Java, which is transformed into residential area, the model of eco-drainage system could reduce surface runoff volume almost by 70%. It is recommended to adjust the dimension of rainwater storage tank and retention ponds in order to reduce more surface runoff volume.
Institute of Research and Community Outreach - Petra Christian University
2019-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21576
10.9744/ced.21.1.29-35
Civil Engineering Dimension; Vol. 21 No. 1 (2019): MARCH 2019; 29-35
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21576/19652
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21577
2021-10-12T05:13:20Z
civ:ART
driver
Performance Evaluation of Hot Mixture Asphalt Using Concentrated Rubber Latex, Rubber Compound and Synthetic Polymer as Modifier
Suaryana, Nyoman
Sofyan, Tedi Santo
Latex
modifier
polymer
performance
rubber compound
Research on the utilization of natural rubber for Hot Mixture Asphalt as modifier has been widely carried out, and more intensively since 2016 due to the declining global natural rubber price. Further research conducted is the utilization of pre-vulcanized concentrated rubber latex and rubber compound added with antioxidants and treated through vulcanization process. This study experimentally evaluates the performance of Asphalt Concrete Wearing Course (ACWC) using natural rubber and synthetic polymer as modifier, compared to ACWC without modifier (only petroleum asphalt). The results show that the rubberized asphalt has higher index penetration value as well as higher elasticity compared to petroleum asphalt penetration grade 60, but lower than synthetic polymer modified asphalt. Similarly, the level of performance of rubberized asphalt mixtures, particularly resilient modulus, water resistance, deformation, and fatigue cracking, is between that of petroleum asphalt and synthetic polymer modified asphalt
Institute of Research and Community Outreach - Petra Christian University
2019-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21577
10.9744/ced.21.1.36-42
Civil Engineering Dimension; Vol. 21 No. 1 (2019): MARCH 2019; 36-42
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21577/19653
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21578
2019-04-24T06:51:46Z
civ:ART
oai:puslit2.petra.ac.id:article/21579
2021-10-12T05:13:20Z
civ:ART
driver
Characteristics of PVC Coated Welded Wire Mesh Fiber Reinforced Concrete
Wijatmiko, Indradi
Wibowo, Ari
Nainggolan, Christin Remayanti
Fiber
PVC coated wire mesh
concrete
tensile strength
compressive strength
Introducing fibers into concrete aims to improve the low tensile strength of concrete and its brittle properties. In this research, readily available PVC coated welded wire mesh with diameter of 1 mm was used as fibers in concrete. There are several variations of concrete samples prepared for this study, i.e. based on the fiber’s volume fraction, length and interlocking schemes. Concrete samples were subjected to tensile and compressive strength, and elastic modulus tests. The results show that the incorporation of PVC coated welded wire mesh slightly increases the tensile strength of concrete, with the optimum fiber volume fraction of 1.5%; with the fiber length of 3.6 cm, and with the interlocking of 1.2 cm. However, the concrete compressive strength is slightly reduced, compared to the normal ones. The presence of PVC coated welded wire mesh as fiber also tends to reduce the elastic modulus of fiber reinforced concrete.
Institute of Research and Community Outreach - Petra Christian University
2019-03-28
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21579
10.9744/ced.21.1.50-56
Civil Engineering Dimension; Vol. 21 No. 1 (2019): MARCH 2019; 52-58
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21579/19685
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/21935
2021-10-12T05:14:24Z
civ:ART
driver
Permeation Resistance of Sawdust Ash Blended Cement Laterized Concrete
Folagbade, Samuel Olufemi
Olawale, Aluko
Absorption
blended cement
laterized concrete
permeation
sawdust ash
This paper compared the initial surface absorption of conventional concrete and laterized concrete containing Portland cement (PC) and sawdust ash (SDA). Laterized concrete was produced at laterite contents of 15 and 30% as partial replacement for sand and SDA contents of 10 and 20% as partial replacement for PC. Compressive strengths at 28 days and initial surface absorption after 10 minutes (ISA-10) at 28, 60 and 90 days were determined at the water/cement ratios of 0.35, 0.50 and 0.65 and assessed at equal 28-day strengths of 25-35 N/mm2. At equal water/cement ratios, compressive strength reduced and ISA-10 increased with increasing content of laterite and SDA. On the other hand, compressive strength and resistance to surface absorption of the blended cement laterized concretes increased with increasing curing age. At equal strengths, all the blended cement laterized concretes have better resistance to surface absorption than the conventional PC concrete.
Institute of Research and Community Outreach - Petra Christian University
2019-10-18
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/21935
10.9744/ced.21.2.76-83
Civil Engineering Dimension; Vol. 21 No. 2 (2019): SEPTEMBER 2019; 76-83
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/21935/19772
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22102
2021-02-11T04:20:21Z
civ:ART
driver
Seismic Vulnerability Assessment Using Rapid Visual Screening: Case Study of Educational Facility Buildings of Jenderal Soedirman University, Indonesia
Haryanto, Yanuar
Hu, Hsuan-Teh
Han, Ay Lie
Hidayat, Banu Ardi
Widyaningrum, Arnie
Yulianita, Prisca Evelyn
earthquake
educational buildings
Rapid Visual Screening
seismic vulnerability assessment
Earthquakes are natural phenomena occurring in various parts of the globe. Severe earthquakes caused substantial loss of life and property when nearly populated districts. Although some progress has been made in the area of seismic prediction, earthquakes in time, magnitude or location can not be estimated correctly. The primary method of reducing casualties is therefore to build seismic resistant structures. Current earthquakes show that the old houses, which are not intended to withstand earthquakes, have been harmed rather than the structures intended according to seismic regulations. Many current structures in Indonesia were intended only without seismic provisions to withstand the gravity loads. There is a need to study these buildings' vulnerability in order to prevent a severe danger. A Rapid Visual Screening (RVS) technique is conducted in this study to determine a Final Level 1 Score, SL1, for Jenderal Soedirman University, Indonesia’s educational facility buildings. In nine constructions situated in Purwokerto and Purbalingga, the method was implemented. Moreover, the final SL1 score is an estimate of the collapse probability if an earthquake occurs with ground motions called the maximum considered earthquake targeted risk, MCER. These score estimates are based on restricted observed and analytical information, thus the probability of collapse is therefore an approximation.
Institute of Research and Community Outreach - Petra Christian University
2020-05-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22102
10.9744/ced.22.1.13-21
Civil Engineering Dimension; Vol. 22 No. 1 (2020): MARCH 2020; 13-21
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22102/20071
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22292
2021-10-12T05:14:24Z
civ:ART
driver
PEMS-on board and E3 Modeling: A Comparison between Real-World Measurement and Emissions Estimates from Construction Equipment
M. Hajji, Apif M. Hajji
Larasati, Aisyah
P. Lewis, Michael
Yue, Huang
Vehicles in construction industry are typically powered by diesel engines and are considered to be an off-road source of air pollution. Air pollutant emissions include nitrogen oxides (NOx), particulate matter (PM), hydrocarbons (HC), and carbon monoxide (CO). Any engine that combusts a nonrenewable carbonaceous fuel will have net emissions of carbon dioxide (CO2). Economic-Energy-Environmental (E3) model, a statistical-modeled tool, is developed by combining a multiple linear regression (MLR) approach for modeling equipment productivity with the emissions calculation algorithm from Environment Protection Agency (EPA)’s NONROAD model. This paper compares emissions data between the field data to E3 model outputs, and determines the similarity of the two sources of fuel use data. It is expected the two data are not narrowly similar since the field data are for individual vehicles, while E3 results are based on NONROAD model, which was intended to estimate average fuel use for a fleet of Heavy-Duty Diesel (HDD) equipment.
Institute of Research and Community Outreach - Petra Christian University
2019-10-18
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22292
10.9744/ced.21.2.59-65
Civil Engineering Dimension; Vol. 21 No. 2 (2019): SEPTEMBER 2019; 59-65
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22292/19786
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22294
2021-10-12T05:14:24Z
civ:ART
driver
Analysis of Different Stripe Connectors for a Gabion Wall based on Woven Waste Tire Stripes
Apriyono, Arwan
Sumiyanto, Sumiyanto
Yanto, Yanto
Iswahyudi, Sachrul
Pamungkas, Rino Wahyu
Woven Waste Tire Stripe
Gabion Wall
Connector Type
In this research, woven waste tire stripes are proposed as an alternative material to wire mesh to make a gabion wall. The performance of the waste tire stripe-based gabion wall is highly dependent on the strength of its stripe, where the stripe connector plays an important role. This research aims to inspect the behavior of different stripe connectors for the gabion wall. To achieve this, a physical model was built and employed to test the strength of the gabion wall. Various stripe connectors are used; adhesive rubber glue, one inch nail, and two mm wire. The strength capacity of the models was determined from the maximum stress before failure. The strength capacities of the models are 83.197, 59.426 and 62.397 kPa for the wire, nail, and glue connector, respectively. Hence, it can be inferred that the wire connector is the strongest of the three connectors.
Institute of Research and Community Outreach - Petra Christian University
2019-10-18
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22294
10.9744/ced.21.2.66-69
Civil Engineering Dimension; Vol. 21 No. 2 (2019): SEPTEMBER 2019; 66-69
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22294/19751
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22295
2021-10-12T05:14:24Z
civ:ART
driver
Intensity-Duration-Frequency (IDF) Curve and the Most Suitable Method to Determine Flood Peak Discharge in Upper Werba Sub-Watershed
Kusumastuti, Cilcia
Sudjarwo, Prasetio
Christhie, Marvin
Krisna, Timotius
IDF curve
rational method
stream flow
synthetic unit hydrograph
watershed
Design flood is one of the important factors for flood risk assessment and water infrastructures planning and development in a certain location. There are several methods to estimate it, one method which has been commonly and widely use is using flood frequency analysis. This research aims to develop Intensity-Duration-Frequency (IDF) curves in Upper Werba Sub-Watershed, West Papua Province, Indonesia, to estimate design rainfall intensity. The design rainfall intensity is used to estimate peak of flood discharge using Rational Formula in the sub-watershed. Other methods, i.e. Soil Conservation Service and Nakayasu Synthetic Unit Hydrograph are also presented in this paper to provide comparison of the estimated peak of flood discharge. The result shows that the Rational method provide the closest magnitude of estimated flood discharge in Upper Werba Sub-Watershed to the observed streamflow. Therefore, it is suggested that the Rational method can be used for water infrastructure planning and development in the sub-watershed.
Institute of Research and Community Outreach - Petra Christian University
2019-10-18
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22295
10.9744/ced.21.2.70-75
Civil Engineering Dimension; Vol. 21 No. 2 (2019): SEPTEMBER 2019; 70-75
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22295/19752
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22296
2021-10-12T05:14:24Z
civ:ART
driver
Study on Graphite Powder as Conductive Pigments for Impressed Current Cathodic Protection System using Carbon Fiber Reinforced Polymer Anode
Wijaya, Gunawan Budi
Lays, David Pratama
Tanto, Hongky Haodiwidjaya
Tjandra, Daniel
Carbon fiber reinforced polymer laminate
graphite powder
half cell potential
impressed current cathodic protection system
pull-off test.
The use of Carbon Fiber Reinforced Polymer (CFRP), for both strengthening material and anode for Impressed Current Cathodic Protection (ICCP) system, is being investigated. The focus of this study is to develop the epoxy that has good bond strength and electrical conductivity. Graphite powder is used as conductive pigments with percentage ranges from 7.5% to 17.5%. All specimens were partially submerged in 5% NaCl solution and induced with electrical current of 10 mA/m2 and 20 mA/m2 for 30 days. An average potential increase of 200 mV was recorded using half cell potential test. The application of 30 days ICCP up to current density of 20 mA/m2 did not affect the bond strength significantly and still complies with ACI recommendation. However, graphite content of more than 15% are found to be not workable and the bond strength is greatly reduced to less than 1 MPa This study concluded that the recommended graphite powder content shall be in the range of 10% to 15%.
Institute of Research and Community Outreach - Petra Christian University
2019-10-18
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22296
10.9744/ced.21.2.84-88
Civil Engineering Dimension; Vol. 21 No. 2 (2019): SEPTEMBER 2019; 84-88
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22296/19753
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22297
2021-10-12T05:14:24Z
civ:ART
driver
On the Derivation of Exact Solutions of a Tapered Cantilever Timoshenko Beam
Wong, Foek Tjong
Gunawan, Junius
Agusta, Kevin
Herryanto, Herryanto
Tanaya, Levin Sergio
Timoshenko beam
tapered beam
the principle of minimum potential energy
slender beam
deep beam
A tapered beam is a beam that has a linearly varying cross section. This paper presents an analytical derivation of the solutions to bending of a symmetric tapered cantilever Timoshenko beam subjected to a bending moment and a concentrated force at the free end and a uniformly-distributed load along the beam. The governing differential equations of the Timoshenko beam of a variable cross section are firstly derived from the principle of minimum potential energy. The differential equations are then solved to obtain the exact deflections and rotations along the beam. Formulas for computing the beam deflections and rotations at the free end are presented. Examples of application are given for the cases of a relatively slender beam and a deep beam. The present solutions can be useful for practical applications as well as for evaluating the accuracy of a numerical method.
Institute of Research and Community Outreach - Petra Christian University
2019-10-18
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22297
10.9744/ced.21.2.89-96
Civil Engineering Dimension; Vol. 21 No. 2 (2019): SEPTEMBER 2019; 89-96
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22297/19754
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22298
2021-10-12T05:14:24Z
civ:ART
driver
Seismic Vulnerability Maps of Ratu Agung District, Bengkulu City, Indonesia
Mase, Lindung Zalbuin
During the 8.6 Mw Bengkulu-Mentawai Earthquake Ratu Agung District was identified as an impacted area. This paper aims to deliver the seismic vulnerability based on geophysical observation. This study was initiated by performing the ambient noise measurement to obtain the geophysical characteristic, such as amplification and predominant frequency. Furthermore, the vulnerability index analysis was performed from the geophysical information collected from the investigation. To observe the tendency of ground damage during the earthquake, ground damages analysis is also performed. All results are depicted into the microzonation maps. The results showed that the amplification and predominant frequency on site are generally ranging from 3 to 5 and 5 to 8 Hz, respectively. The seismic vulnerability index in study area is up to 10-3. The results showed that during the Bengkulu-Mentawai Earthquake, the investigated sites could be possible to undergo crack settlement which can trigger massive sand boiling in the study area.
Institute of Research and Community Outreach - Petra Christian University
2019-10-18
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22298
10.9744/ced.21.2.97-106
Civil Engineering Dimension; Vol. 21 No. 2 (2019): SEPTEMBER 2019; 97-106
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22298/19755
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22299
2021-10-12T05:14:24Z
civ:ART
driver
Effect of Crumb Rubber as Fine Aggregate Replacement in Cold Mixture Asphalt
Wulandari, Paravita Sri
Kertorahardjo, Ken
Thesman, Arianto
Tjandra, Daniel
Crumb rubber
bitumen emulsion
cold mix
Marshall test
The number of waste tires has been increasing as an impact of rapidly growing number of vehicles and becomes a global environmental concern. The environmental impact can be reduced by converting the waste tires to crumb rubber and reusing it as a replacement of fine aggregates in asphalt mixture. Dense graded cold mixtures asphalt design was developed for rubberized mixtures with up to 100% (by weight) crumb rubber replacement. Series of laboratory testing were performed for evaluating the Marshall stability and volumetric properties of rubberized cold mixture asphalt. The findings of this laboratory study indicated that Marshall stability and volumetric properties of these mixtures were affected by crumb rubber percentage. Although the use of crumb rubber in cold mixture asphalt could decrease the mechanical and volumetric properties of mixtures, but still has a great potential as a partial fine aggregate replacement in cold mixture asphalt. Rubberized cold mixture asphalt could be considered as a flexible pavement subjected to low traffic medium load.
Institute of Research and Community Outreach - Petra Christian University
2019-10-18
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22299
10.9744/ced.21.2.107-112
Civil Engineering Dimension; Vol. 21 No. 2 (2019): SEPTEMBER 2019; 107-112
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22299/19756
Copyright (c) 2019 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22352
2021-10-12T05:15:13Z
civ:ART
driver
Introducing a Novel Digital Elevation Model Using Artificial Neural Network Algorithm
Behzadi, Saeed
Jalilzadeh, Amin
Digital Train Model
Artificial Neural Network
Kriging
Elevation is a basic information of the earth, and different elevation models are provided to better understanding the earth and its different functions. However, it is not always possible to conduct a comprehensive survey in big areas and calculate all surface points. The best way is survey some points, then the elevation estimation is done using these points in each part of study area. The purpose of this paper is to use interpolation methods to estimate elevation. In such cases, different methods are used to interpolate and estimate points with an uncertain height. In this paper, the three usual methods are chosen and introduced then their performance are compared. These methods including: Inverse Distance Weighting (IDW), the Krige method or Kriging, and Artificial Neural Network (ANN). The results show that Artificial Intelligence with RMS = 5.9m is better in compare to Kriging with RMS = 7.2 and IDW with RMS = 9. The obtained result presents that in despite of its convenience, ANN provides DEMs with minimum errors.
Institute of Research and Community Outreach - Petra Christian University
2020-10-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22352
10.9744/ced.22.2.47-51
Civil Engineering Dimension; Vol. 22 No. 2 (2020): SEPTEMBER 2020; 47-51
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22352/20224
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22451
2021-02-11T04:20:21Z
civ:ART
driver
Towards Improving Performance of the Construction Industry in Ghana: A SWOT Approach
Frimpong, Boadu Elijah
Sunindijo, Riza Yosia
Wang, Cynthia
Construction
developing countries
Ghana
strategies
SWOT
The construction industry is the second largest contributor to GDP and a significant driver of economic activities in Ghana. Given the importance of the construction industry in boosting the national economy, it is essential to develop effective strategies to keep improving the performance of the industry. To achieve this aim, this research conducted the strengths, weaknesses, opportunities and threats (SWOT) analysis of the Ghanaian construction industry. Underpinned by the SWOT analysis, strategic recommendations are provided to minimise the weaknesses and neutralise the threats that confront the industry, while taking advantage of the strengths and exploiting the opportunities presented to it. These include investment to facilitate innovation and growth, human resource development, development and enforcement of policy and standards, and conducive procurement practice. The recommendations are expected to provide practical and theoretical directions to the industry’s stakeholders on effective ways to improve the industry’s performance.
Institute of Research and Community Outreach - Petra Christian University
2020-05-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22451
10.9744/ced.22.1.37-46
Civil Engineering Dimension; Vol. 22 No. 1 (2020): MARCH 2020; 37-46
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22451/20068
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22520
2021-02-11T04:20:21Z
civ:ART
driver
Numerical Model for High Relative Capacity of Tensegrity Cable Domes
LOGZIT, Nacer
KEBICHE, Khelifa
Cable Domes
Tensegrity
Relative Capacity
Optimization Criteria.
The tensegrity cable domes are a type of structures composed of compressed bars and tensioned cables. They are characterized by an exceptional innovation in terms of lightness. Research in this area is booming towards multiple applications. In the absence of an approach linking design by dimensioning, this article aims to propose a procedure for verifying the design while seeking a better lightness of the structure. The article uses the novelty of the methods applied for this kind of structure, using the hypothesis of geometric nonlinearity, to find the best solution, verifying all the sizing criteria. Through an example of a simple cables dome, we have shown the feasibility of this approach. The shape of the triangles forming the basis of design, have a direct relationship on the relative capacity, this last has been significantly improved, This method can easily be applied to other examples of more complex cables domes.
Institute of Research and Community Outreach - Petra Christian University
2020-05-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22520
10.9744/ced.22.1.29-36
Civil Engineering Dimension; Vol. 22 No. 1 (2020): MARCH 2020; 29-36
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22520/20072
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22554
2021-02-11T04:20:21Z
civ:ART
driver
Promoting Precipitation Technique using Bio-Chemical Grouting for Soil Liquefaction Prevention
Putra, Heriansyah
Yasuhara, Hideaki
Kinoshita, Naoki
Fauzan, Muhammad
grouting
precipitation method
UCS
liquefaction
soil improvement
The applicability of bio-chemical grouting as the environmentally friendly and economically method for liquefaction remediation was evaluated. Several combinations of organic and in-organic precipitations methods were conducted to obtain the optimum grouting solution. Organic precipitation method employs a bio-agent of urease enzyme to dissociate urea into ammonium and carbonate ions. The produced carbonate ions are precipitated as calcite crystals in the presence of calcium ions. Meanwhile, the in-organic methods were performed using chemical compounds only, without the bio-agent. Unconfined compressive strength (UCS) tests were performed to evaluate the applicability of the grouting solutions for improving the soil strength. Grouting solution is injected into the prepared sand samples. The sand samples with a relative density of 50% were treated with one and two PV for 3-day curing times. The experimental results showed that the organic precipitation method produced the high precipitated amount and resulted in the significant improvement in the strength of the treated sand. The presence of the precipitated materials within the grains of soil generated the strength of 272 kPa. The results of this study have elucidated that the organic precipitation method composed of calcium chloride, magnesium sulfate, urea and enzyme of urease may be an alternative soil-improvement technique to prevent the liquefaction susceptibility.
Institute of Research and Community Outreach - Petra Christian University
2020-05-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22554
10.9744/ced.22.1.1-5
Civil Engineering Dimension; Vol. 22 No. 1 (2020): MARCH 2020; 1-5
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22554/20065
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22771
2020-05-19T05:40:44Z
civ:ART
oai:puslit2.petra.ac.id:article/22772
2021-02-11T04:20:21Z
civ:ART
driver
Flexural Strength Behaviour of Apa (Afzeliabipindensis) Reinforced Stabilized Lateritic Soil Beam
OZIGI, Philip Baki
TULEUN, Lawrence Zahemen
JIMOH, Alao Abdullahi
Lateritic soil
Apa (Afzeliabipindensis) reinforced soil beam
flexural strength
This paper reports on the flexural strength behaviour of Apa reinforced stabilized lateritic soil beams. The potential of using timber as a reinforcement material is because timber is abundant, cheap and locally available compared to conventional steel. Apa timber possess a tensile strength of 68.34 N/mm2. Experimental and Finite Element Analysis using ANSYS 15 were carried out to determine the flexural strength of Apa reinforced lateritic soil beams. The results showed an increase in the load-bearing capacity with increase in the percentage area of Apa reinforcement used in Lateritic soil beams. BS 8110-1:1997 requires that area of reinforcement for beams should not exceed 4%. At 4 percent area, the flexural strength of the Apa reinforced lateritic soil beams (ALB) was 0.763 N/mm2 with corresponding load capacity of 3.435 kN which is slightly higher than the steel reinforced lateritic soil beams (SLB) of 0.740 N/mm2 with corresponding load capacity of 3.329 kN obtained in the report
Institute of Research and Community Outreach - Petra Christian University
2020-05-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22772
10.9744/ced.22.1.22-28
Civil Engineering Dimension; Vol. 22 No. 1 (2020): MARCH 2020; 22-28
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22772/20127
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22773
2021-02-11T04:20:21Z
civ:ART
driver
Digital Image Correlation for Cement-based Materials and Structural Concrete Testing
Tambusay, Asdam
Suryanto, Benny
Suprobo, Priyo
Crack mapping
DIC
low-cost
Ncorr
strain field
This paper presents the application of a low-cost digital image correlation (DIC) system for automated crack mapping. The system employed makes use of a conventional digital camera, a remote image recording controller, and an open-source digital image correlation MATLAB software Ncorr. To showcase the potential of the proposed system, two case studies involving general structural and material testing were undertaken. In the first series, the DIC system was used to study the fracture processes in a reinforced concrete beam and to investigate the influence of key input parameters on the spatial quality of strain maps obtained from the DIC analysis. In the second series, the application of the DIC method was expanded to assist in the study of complex multiple micro-crack formations in ductile cement composite testing. It is shown that the strain maps obtained from the DIC technique have a close resemblance to the actual crack patterns
Institute of Research and Community Outreach - Petra Christian University
2020-05-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22773
10.9744/ced.22.1.6-12
Civil Engineering Dimension; Vol. 22 No. 1 (2020): MARCH 2020; 6-12
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22773/20070
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22775
2021-10-12T05:15:49Z
civ:ART
driver
Utilization of Phosphoric Acid and Lime for Stabilizing Laterite for Lateritic Bricks Production
AYODELE, Adekemi Loretta
Adekoya, Adefemi Daniel
Mohammed, Abdulhalim Oshioke
Oluwatosin, Ayowande
Phosphoric acid
Lateritic bricks
Hydrated lime
Compressive strength
Modulus of rupture
Dry density
pH.
This study investigates the use of phosphoric acid (H3PO4) and lime in stabilizing lateritic soil for lateritic bricks production. Varying percentages (0, 2, 4 and 6%) of 1 M H3PO4, 5% lime and their combinations were mixed with lateritic soil for stabilization purpose. Hollow bricks were produced from the different mixes. The bricks were cured for 7, 14 and 28 days under ambient air condition. The compressive strength (fc), bulk density (pb), dry density (pd) and water absorption rate were determined at each of the curing days while the modulus of rupture (fr) and pH were determined after 28 days. The results show a maximum fc of 0.93 N/mm2 and 0.87 N/mm2 were obtained at 5% and 4% H3PO4 stabilization. The maximum pb and pd of 15.2 kN/m3 and 14.9 kN/m3 respectively were obtained at 4% H3PO4 stabilization. The maximum fr of 0.2 N/mm2 was obtained at combined 4% H3PO4 and 5% lime stabilization while none of the bricks passed the water absorption test.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22775
10.9744/ced.23.1.1-8
Civil Engineering Dimension; Vol. 23 No. 1 (2021): MARCH 2021; 1-8
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22775/20328
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22803
2021-10-12T05:15:49Z
civ:ART
driver
Improving Geopolymer Characteristics with Addition of Poly-Vinyl Alcohol (PVA) Fibers
Ekaputri, Januarti Jaya
Fujiyama, Chikako
Chijiwa, Nobuhiro
Ho, Tu Dac
Nguyen, Hung Thanh
Geopolymer
PVA
fly ash
mechanical properties
alkali ratio
This paper presents the benefits of PVA fibers in improving the mechanical properties of class F fly-ash-based geopolymer concrete. The activator used in the geopolymer was 8M sodium hydroxide (NaOH) and sodium silicate (Na2SiO3), with a mass ratio of Na2SiO3 to NaOH varied from 1.5 to 2.5. Cylindrical specimens with a diameter of 100 mm and a height of 200 mm were prepared for mechanical strength tests. The PVA fibers in the geopolymers were fixed at 0.4%, 0.6%, and 0.8% by total volume. Some mechanical tests were carried out, including compression, splitting, direct tensile and elastic modulus tests. It was found that the mixture with a ratio of alkalis of 1.5 and the PVA fiber content of 0.4% had the best workability. The highest compressive strength was obtained in a mixture with alkali activator ratios of 1.5 and 2.0, and with 0.6% fiber addition. The ratio of the tensile (and splitting-tensile) strength to compressive strength was found to increase with the certain amount of PVA fibers and the ratio of the alkali activators. The workability issue and fiber direction in the concrete were the dominant factors influencing the properties of geopolymer concrete.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22803
10.9744/ced.23.1.28-34
Civil Engineering Dimension; Vol. 23 No. 1 (2021): MARCH 2021; 28-34
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22803/20329
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22862
2021-10-12T05:15:49Z
civ:ART
driver
Seismic Performance of a Three-Story Reinforced Concrete Building with Masonry Infill Walls and Friction Base Support
Pudjisuryadi, Pamuda
Prayogo, V.S.
Oetomo, S.I.
Lumantarna, Benjamin
Element Removal
Friction Base
Masonry Infill Walls
Non-linear time history analysis
RC Building
Soft Story
The stiffness of masonry infill walls is commonly neglected in design practice of Reinforced Concrete (RC) structures. In fact, the stiffness of masonry infill wall may significantly influence seismic performance and dynamic behavior of RC buildings. In this research, influence of masonry infill walls to the structural performance of a three-story RC frame is investigated. In addition, possible application of friction-based support is also studied. Full 3D non-linear time history analysis is conducted to observe behavior of the structure under two-directional ground motion. In the analysis, any failed elements are removed subsequently from the model to avoid numerical analysis problem. The result shows that the placement of masonry infill walls can significantly influence the structural behavior of RC structure. Inappropriate placement of masonry wall may lead the building undergo soft-story mechanism. It is also found that the use of friction-based support can effectively improve the seismic performance of the building.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22862
10.9744/ced.23.1.35-43
Civil Engineering Dimension; Vol. 23 No. 1 (2021): MARCH 2021; 35-43
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22862/20330
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22864
2021-10-12T05:15:13Z
civ:ART
driver
Improving Seismic Performance of Structure with Semi-rigid floor using VSL-Gensui Damper
Pudjisuryadi, Pamuda
Halim, Andre
Kandiawan, Alexander Keith
Lumantarna, Benjamin
Deficient structures can be strengthened using various methods, and installing damper devices is one of such methods. In this study, effectiveness of Vorspann System Losinger (VSL) Gensui Damper to improve structural performance of deficient building with semi-rigid floors is investigated. The considered building is subjected to spectrum consistent ground accelerations generated from El Centro 18 May 1940 earthquake N-S and E-W components in accordance to Indonesian Seismic Code (SNI 1726:2012) for Mataram City. Modified Simplified Sequential Search Algorithm (MSSSA) and Optimum Damper Allocation Method (ODAM) methods are used to efficiently placed the dampers on the building until allowable drift limits specified by the code are met. Results show that installation of VSL Gensui Dampers can effectively reduce structural drifts. Further, it should be noted that the placement of dampers must be well distributed among frames in the same story, since their drifts may differ significantly in building with semi-rigid floors.
Institute of Research and Community Outreach - Petra Christian University
2020-10-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22864
10.9744/ced.22.2.74-80
Civil Engineering Dimension; Vol. 22 No. 2 (2020): SEPTEMBER 2020; 75-81
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22864/20213
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22926
2022-02-09T02:55:33Z
civ:ART
driver
Land Subsidence Potential Detection in Yogyakarta International Airport using Sentinel-1 Insar Data
Dewanto, Bondan Galih
Haryanto, Yanuar
Purnomo, Sanidhya Nika
civil engineering
geological engineering
hydraulic engineering
On January 27, 2017, the Indonesian Government started building a new international airport in Yogyakarta Province, named Yogyakarta International Airport (YIA) to replace Adisucipto International Airport. YIA is located near the beach, which means that an awareness of natural disasters, such as coastal flooding, is essential. One of the causes of sea water flooding is land subsidence phenomenon. This land subsidence phenomenon can be monitored by using Sentinel-1 Interferometric Synthetic Aperture Radar (InSAR) data. To monitor the crustal deformation, the data used in this research are from years 2016-2019. The data were processed through LiCSBAS software which is published by the COMET in the UK. In the processing scheme, interferograms with many unwrapping errors are detected and removed via loop closure. Reliable time series and velocities are extracted using several noise indices, with the help of masking. The results show the subsidence phenomenon in the YIA area (up to 25 mm).
Institute of Research and Community Outreach - Petra Christian University
2021-10-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22926
10.9744/ced.23.2.91-99
Civil Engineering Dimension; Vol. 23 No. 2 (2021): SEPTEMBER 2021; 91-99
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22926/20460
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22975
2021-10-12T05:15:13Z
civ:ART
driver
Utilization of low sulfur fly ash from circulating fluidized bed combustion burner as geopolymer binder
Antoni, Antoni
Shenjaya, Stacia Dwi
Lupita, Maria
Santosa, Samuel
Wiyono, David
Hardjito, Djwantoro
Circulating fluidized bed combustion (CFBC) is a newer type of burner that employ a circulating process to burn fuel effectively. CFBC burning process is gaining more popularity due to its compact size, high efficiency and lower burning temperature compared to the pulverized coal combustion (PCC) burner. The CFBC burner produces fly ash with different physical properties compared to the PCC burner, i.e. the fly ash is not rounded, and required higher water content for comparable workability. The CFBC fly ash also has a high sulfur content that is detrimental for hardened concrete. Due to its drawbacks, the CFBC hardly used as cementitious material and geopolymer precursor. This study focuses on comparing variations in the concentration of NaOH solution and variations in the ratio of alkaline activators to the setting time and compressive strength of geopolymer mortars on a new class of CFBC fly ash, which have low sulfur content. The concentrations of NaOH solution were 6M, 8M, 10M, and 12M, while the alkaline activator ratios used were 3.0, 2.5, 2.0, 1.0, and 0.5. It was concluded that the low sulfur CFBC fly ash has a potential to be utilized as geopolymer precursor, however, with a shortcoming in its high water demand. The CFBC fly ash used in this study resulted in a geopolymer matrix with good compressive strength and stability. The water demand varies with the fly ash sampling time shows the challenges in the utilization of the fly ash. The highest mortar’s compressive strength, 33.4 MPa at 90 days was achieved at NaOH concentration of 8M and ratio of sodium silicate solution to sodium hydroxide solution of 2.5 with excellent stability.
Institute of Research and Community Outreach - Petra Christian University
2020-10-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22975
10.9744/ced.22.2.93-97
Civil Engineering Dimension; Vol. 22 No. 2 (2020): SEPTEMBER 2020; 94-100
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22975/20225
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/22997
2021-10-12T05:15:13Z
civ:ART
driver
An Innovation Value Chain in Project Based Companies: A Study of Indonesian Contractors
Setiawan, Harijanto
Raharjo, Ferianto
Han, Ay Lie
Innovation Value Chain
Contractors
Indonesia
Innovation is one of the key success factors of contractors to achieve sustainable business. However, studies about innovation cannot be generalized to all business sectors. Therefore, special study about innovation that focuses on contractors in Indonesia is needed. The study is aimed to explore the process of innovation development in contractors, based on innovation value chain (IVC) approach. The qualitative analysis on the data that is collected from in depth interview with top managers of big contractors in Indonesia is carried out. This study found that innovations are generated mainly by project teams because they are involved directly in the project activities. The next phase is to test the idea of innovation in the selected projects in order to assess whether the innovation works well or not. Finally, the selected innovations will be set as a company standard and will be implemented in the subsequent projects.
Institute of Research and Community Outreach - Petra Christian University
2020-10-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/22997
10.9744/ced.22.2.98-104
Civil Engineering Dimension; Vol. 22 No. 2 (2020): SEPTEMBER 2020; 101-108
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/22997/20216
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23039
2021-10-12T05:15:49Z
civ:ART
driver
The Utilization of Milk as a Catalyst Material in Enzyme-Mediated Calcite Precipitation (EMCP) for Crack-Healing in Concrete
Ihsani, Zalfa Maulida
Putra, Heriansyah
Cracking
compressive strength
EMCP
microbes
permeability
This study discussed the applicability of the calcite precipitation method to repair the concrete's crack. The grouting solution of Enzyme-Mediated Calcite Precipitation (EMCP) was modified by adding milk as a catalyst in calcite formation. Cracks in concrete samples were made when the concrete was 28 days with a width of 0.1-0.3 mm. The EMCP solution composed of urease, urea, CaCl2, and milk was injected into the cracked concrete sample, and its effect on permeability and compressive strength tests were evaluated. The result shows that the optimum composition of milk used in the formation of calcite had a concentration of 5 g/L with an initial preparation temperature of 70oC, which produced 26% higher than the initial EMCP solution. The mechanical test results show that the reduction of coefficient of permeability of 92.23% compared to the cracked sample and the improve strength up to 98.75% of the non-cracked sample were obtained by three circles injection. This study elucidated that milk utilization as a catalyst material in repairing cracks with the EMCP method is a potential method for crack-healing concrete.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23039
10.9744/ced.23.1.54-61
Civil Engineering Dimension; Vol. 23 No. 1 (2021): MARCH 2021; 54-61
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23039/20332
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23122
2021-10-12T05:15:13Z
civ:ART
driver
Importance Performance Analysis of Factors Causing Reworks in the Construction Industry
Andi, Andi
Rahardjo, Jani
Fendy, Fendy
Importance performance analysis
rework
project construction.
Rework can bring negative effect to construction project. This research aims to identify the importance level of factors causing reworks in structural, finishing, and mechanical, electrical and plumbing (MEP) works by a way of importance performance analysis (IPA). In order to reach this objective, the research evaluates the degree of occurrence the factors in each type of works and analyzes the level of difficulty in preventing the occurrence of the factors. The results are based on questionnaire survey, involving general and MEP contractors in Surabaya. Design related factors are the most frequent and most difficult to prevent in structural and finishing works. In MEP works, the most frequent factors are tight construction duration and unclear instructions from owner and designer; whilst insufficient owner’s capital is the most difficult to prevent. The research finds two factors that have high importance level, i.e. design changes and insufficient detail drawings.
Institute of Research and Community Outreach - Petra Christian University
2020-10-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23122
10.9744/ced.22.2.52-57
Civil Engineering Dimension; Vol. 22 No. 2 (2020): SEPTEMBER 2020; 52-58
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23122/20210
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23123
2021-10-12T05:15:13Z
civ:ART
driver
A Virtual Platform to Determine the Tensile Properties of Engineered Cementitious Composite
Suryanto, Benny
Suryanto, Joshua Kiyoshi
ECC
flexural test
Java Script
online calculator
tensile property
quality control
The four-point flexural test is now making headway as an alternative laboratory investigative technique for determining the tensile properties of Engineered Cementitious Composite (ECC) to the more traditional, direct/uniaxial tensile test. As the fundamental mechanics of ECC specimens tested in four-point flexure are well understood, it is possible to develop a simple relationship between flexural test results and the tensile properties of this cement composite. This paper extends this development and aims to provide accessible and quick calculation of the tensile properties of ECC via a virtual test environment. To this end, attention is directed towards the test configurations developed earlier at Heriot-Watt University, the University of Michigan, and Sepuluh Nopember Institute of Technology. In this paper, the technical background employed in creating the virtual environment and the computer implementation using the JavaScript programming language are presented. The prototype virtual environment is freely available via the Internet at https://ecc-calculator.netlify.app/.
Institute of Research and Community Outreach - Petra Christian University
2020-10-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23123
10.9744/ced.22.2.58-66
Civil Engineering Dimension; Vol. 22 No. 2 (2020): SEPTEMBER 2020; 59-67
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23123/20211
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23124
2021-10-12T05:15:13Z
civ:ART
driver
Suction Monitoring and Stability of Volcanic-Residual Soil Slope during Rainfall
Muntohar, Agus Setyo
Fata, Nurul
Jotisankasa, Apiniti
Yang, Kuo-Hsin
Suction
rainfall
volcanic soil
slope stability
unsaturated soil.
Some slopes in Yogyakarta, Indonesia, were covered by volcanic soil of the quaternary deposit of Merapi volcano. Typically, the soil layers of the slope consist of fine sand or silty sand. During the wet season (November – February), the slope is prone to instability due to rainfall infiltration. This paper presents the field suction monitoring of silty-sand slope. A 2.57 m high slope at Universitas Muhammadiyah Yogyakarta campus was instrumented with a mini tensiometer, moisture probe, and rain gauge to study the effect of suction on the slope stability during rainfall in wet season. The investigation shows that the rainfall decreases the suction and increase the moisture of soil. This situation leads to slope instability. The factor of safety fluctuates corresponding to the rainfall intensity. The lowest factor of safety was attained on 30 December, in which the rainfall intensity is the highest, i.e. 48 mm/day.
Institute of Research and Community Outreach - Petra Christian University
2020-10-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23124
10.9744/ced.22.2.67-73
Civil Engineering Dimension; Vol. 22 No. 2 (2020): SEPTEMBER 2020; 68-74
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23124/20212
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23125
2021-10-12T05:15:13Z
civ:ART
driver
Evaluation of a Macro Lump Plasticity Model for Reinforced Concrete Beam-Column Joint under Cyclic Loading
Purnomo, Joko
Octaviani, V.
Chiaulina, P. K.
Chandra, Jimmy
RC beam-column joint
cyclic behavior
macro spring model
Lateral deformations of reinforced concrete (RC) frames under extreme seismic excitation are highly affected by the stiffness of their beam-column joints. Numerous models have been proposed to simulate the responses of RC beam-column joint under cyclic loading. Development of RC beam-column joint model based on macro modeling using spring elements becomes more popular because of its considerably simple application for seismic performance evaluation purposes. In this study, a simple modification to previously developed macro-spring element-based model for RC beam-column joint is done and is used to simulate the behavior of seven external and five internal RC joints under cyclic loading in SAP2000. The model consists of several spring elements to define column, beam, joint, and bond-slip responses according to its individual moment-rotation relationships. Overall, the analysis results show that the modified model can simulate well the cyclic behavior of RC beam-column joints when are compared to previously available experimental results
Institute of Research and Community Outreach - Petra Christian University
2020-10-06
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23125
10.9744/ced.22.2.81-92
Civil Engineering Dimension; Vol. 22 No. 2 (2020): SEPTEMBER 2020; 82-93
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23125/20214
Copyright (c) 2020 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23330
2021-10-12T05:15:49Z
civ:ART
driver
Seismic Behaviour of Strengthened Unreinforced Masonry Walls using Kevlar-FRP
Wijanto, Sugeng
Andriono, Takim
Tanudjaja, Jovita Augusta
Unreinforced masonry
seismic
kevlar fiber
solid
link
Unreinforced masonry walls (URM) in old buildings are vulnerable to collapse upon receiving high lateral inertia force due to earthquakes. However, a high strength fiber material such as Kevlar fiber has been identified as able to improve the URM-Wall performance, especially in shear strength enhancement. In this research, the seismic performance of an URM-Wall was analysed using SAP2000 by modeling the wall with three dimensional solid elements. Solids and springs as link connectors were assigned to represent the masonry behavior. The aim of this research is to compare between results obtained from the computer analyses and the previously conducted laboratory experiments. The effectiveness of Kevlar material installed in the diagonal directions of both wall surfaces was investigated. It was found that the failure mechanism shown by the SAP2000 model is similar to the laboratory test results.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23330
10.9744/ced.23.1.44-53
Civil Engineering Dimension; Vol. 23 No. 1 (2021): MARCH 2021; 44-53
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23330/20331
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23491
2022-02-09T02:55:33Z
civ:ART
driver
Empirical Analysis for Measuring Travel Time Reliability on Road Network
Karami, Muhammad
Herianto, Dwi
Ofrial, Siti A.
Yulianti, Ning
Buffer time methods
travel time
travel time reliability
This research analyses the characteristics of travel time reliability for the road network in Kota Bandar Lampung. Therefore, travel time consists of access, wait and interchange time, while its reliability deals with variations of in-passenger/private cars time. Survey of travel time on each road was carried out for 12 hours (from 06.00 to 18.00) for five working days. Furthermore, the buffer time method was used to measure the characteristics of time travel reliability consisting of five measuring tools, namely planning time, planning time index, buffer time, buffer time index and travel time index. This research found that the temporal effects are the main factor that tends to affect travel time, whereas network effects are the second factor that tends to affect travel time. Furthermore, the regression equation was developed to express the effect of planning time (TPlan) and free-flow travel time on average travel time .
Institute of Research and Community Outreach - Petra Christian University
2021-10-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23491
10.9744/ced.23.2.100-107
Civil Engineering Dimension; Vol. 23 No. 2 (2021): SEPTEMBER 2021; 100-107
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23491/20461
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23577
2021-10-12T05:15:49Z
civ:ART
driver
Seismic Retrofitting of Irregular Pre-80s Low-rise Conventional RC Building Structures
Lie, Han Ay
Utomo, Junaedi
Hu, Hsuan-Teh
Lestari, Lena Tri
Earthquake-resilience
retrofitting techniques
jacketing
Carbon Fiber Reinforced Polymers (CFRP)
A resilience and seismic safety evaluation method of under-qualified concrete structures designed based on codes prior to the introduction of earthquake provisions is presented. A numerical method for evaluating and improving a structure’s performance and resilience through jacketing and Carbon Fiber Reinforced Polymers (CFRP) retrofitting was developed. The model analyzed the structure’s existing condition, inadequate elements were identified, and segments that required strengthening were determined. Retrofitting and external reinforcing techniques were applied, and their effectiveness evaluated. Elements identified as insufficient were subjected to a strengthening iteration process to ensure that all qualifications were fulfilled. It was proven that the numerical simulation was accurate, cost-effective and time-saving in evaluating deficient structures and the effectiveness of their strengthening methods. The numerical model and analysis in conjunction with the technology of jacketing and CFRP retrofitting provide a fast and straightforward solution for older structures in ameliorating their resilience and overall performance
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23577
10.9744/ced.23.1.9-19
Civil Engineering Dimension; Vol. 23 No. 1 (2021): MARCH 2021; 9-19
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23577/20333
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23579
2021-10-12T05:15:49Z
civ:ART
driver
Climate Change Impact in Flores Island, a Dry Region in Indonesia
Kusumastuti, Cilcia
Gode, Dicky
Kurnianto, Yobella Febe
Syaranamual, Frederik Jones
Climate change
dry region
Mann-Kendall’s test
rainfall trend
t-test
Climate change impacts have gained great attention to be studied in various fields. In this paper, an investigation of rainfall pattern change is performed using three statistical methods, i.e., simple linear regression, t-test, and Mann-Kendall’s test. The analysis is performed at 10- and 20-year time scales of daily, monthly, and annual rainfall in Flores Island, a dry region in Indonesia. In general, an increasing monthly rainfall trend is detected in the rainy season (October – April) at a 20-year period, using all three methods. Specifically, a significant increasing trend in March 1989 – 2008 is observed, and it contributes to the significant increasing trend of annual rainfall. The findings presented in this paper should be an alert for potential climate change impacts in the region. The positive consideration of having more rainfall in a dry region might turn into a negative reality when adaptation measures are not well-prepared.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23579
10.9744/ced.23.1.20-27
Civil Engineering Dimension; Vol. 23 No. 1 (2021): MARCH 2021; 20-27
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23579/20334
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23580
2021-10-12T05:15:49Z
civ:ART
driver
The Development of Extradosed Bridge Concept from a Vision to a Reality
Theryo, Teddy S.
Concrete medium-span bridge
Extradosed
balanced cantilever
The development of Extradosed bridge from a vision to a real project is presented in this paper. Mathivat of France who is recognized as the inventor of this bridge type, envisioned a new bridge type suitable for medium span ranges in 1979. He suggested that some of the cantilever tendons in balanced cantilever bridge can be deviated to the top deck supported by short tower resemble stay cables. The structural benefit of this idea is increasing positive moment capacity by increasing eccentricity over the pier and enhanced shear capacity. Therefore, with the same conditions, longer span can be designed. Due to small angle of stay cables, the cable allowable stress at serviceability is about the same level with balanced cantilever bridge and no significant penalty on fatigue resistance unlike stay cables for conventional cable stayed bridges. The Extradosed bridge offers economic benefit for medium span range and aesthetically pleasing.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23580
10.9744/ced.23.1.62-66
Civil Engineering Dimension; Vol. 23 No. 1 (2021): MARCH 2021; 62-66
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23580/20335
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23610
2022-02-25T04:18:54Z
civ:ART
driver
A Study on Finite Element Modelling and Analysis with respect to Experimental Results of Strengthened Unreinforced Masonry Walls With and Without Kevlar-FRP
Wijanto, Sugeng
Andriono, Takim
Tanudjaja, Jovita
Seismic performance
unreinforced masonry
Kevlar Fibre
finite element method
Unreinforced masonry (URM) walls, found in most historical buildings in Indonesia, are relatively brittle with wide variety of material properties. The behaviour of URM walls is very complex, especially when subjected to seismic excitation. In this research, a finite element modelling was set up in order to analyse the seismic performance of URM wall experimental test units, with and without strengthening material. The analysis was conducted using SAP2000 computer program. Three dimensional solids and springs as link connectors were assigned to represent the masonry behaviour. This research aims to compare results obtained from the computer analysis and the previously conducted laboratory experiments. The effectiveness of Kevlar fibre material, which was installed on both wall surfaces and modelled as truss element was also investigated. It was found that the failure mechanisms shown by the SAP2000 model was similar to the laboratory test results. The use of Kevlar Fibre as strengthening material was found able to significantly increase the stiffness and shear capacity of the URM wall.
Institute of Research and Community Outreach - Petra Christian University
2021-10-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23610
10.9744/ced.23.2.67-77
Civil Engineering Dimension; Vol. 23 No. 2 (2021): SEPTEMBER 2021; 67-77
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23610/20458
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23654
2021-04-20T02:33:10Z
civ:ART
driver
Analysis of Rainfall Characteristicsfor Flood Estimation in Way Awi Watershed
Kusumastuti, Dyah I.
Jokowinarno, D.
Rafii, C.H. Van
Yuniarti , F.
Design rainfall intensity
flood hydrograph
flood peak
intensity distribution
This study investigates rainfall intensity distribution in Way Awi watershed located in Bandar Lampung, and how their impacts on flood peak and flood hydrographs. Hourly rainfall data is examined to obtain design rainfall intensity and rainfall intensity distribution at rainfall duration from three to eight hours. Rainfall-runoff model, i.e. Rational method is used to calculate flood peak while unit hydrograph method is used to develop flood hydrograph. This study shows that in Way Awi watershed 88.3% to 96.4% of 24-hour rain occurs in three to eight hour durations. In addition, rainfall with three hour duration generates the highest flood peak, followed by four hour duration rainfall. When rainfall duration and design rainfall intensity are the same but rainfall intensity distribution is different, generated flood hydrograph may have different flood peak magnitude and timing. Result of this study is useful for flood analysis and mitigation in Way Awi watershed.
Institute of Research and Community Outreach - Petra Christian University
2021-04-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23654
Civil Engineering Dimension; Vol. 18 No. 1 (2016): MARCH 2016; 31-37
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23654/20345
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23728
2022-02-09T02:55:33Z
civ:ART
driver
Effect of the Rise in Online Motorcycle Taxi Services on the Number of Motorcycles using the Interrupted Time Series Method
Anindityas, Yovita Fabriska Laras
Rizki, M.
Joewono, T.B.
number of motorcycles
government policy
online motorcycle taxis
interrupted time series method
The substantial growth of motorcycle users in Indonesia is hypothesized to be influenced by a government policy on motorcycle purchase waivers and the massive growth of online motorcycle taxis. This study aims to analyse the relationship between the emergence of online motorcycle taxis and government policy changes towards the number of motorcycles and compare the estimation model seen from the consumer and sales sides. The data were collected from the Indonesian Bureau of Statistics, Motorcycle Industry Association, and World Bank. Several estimation models were built using the interrupted time series method. The results showed that changes in government policy and income per capita significantly increased the number of motorcycles. However, the emergence of online motorcycle taxis negatively affected the increasing number of motorcycles. The results also showed that models with data representing motorcycle usage behavior provided better results than the model with motorcycle sales.
Institute of Research and Community Outreach - Petra Christian University
2021-10-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23728
10.9744/ced.23.2.123-130
Civil Engineering Dimension; Vol. 23 No. 2 (2021): SEPTEMBER 2021; 123-130
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23728/20465
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23754
2022-02-25T03:25:23Z
civ:ART
driver
Comprehensive Investigation on the Potential of Fly Ash from New Source as Construction Material
Antoni, Antoni
Hartono, Florentcia
Tanuwijaya, Steven
Wijaya, Kevin
Vianthi, Agie
Hardjito, Djwantoro
fly ash
alternative binder
pozzolan
HVFA
self-cementing
geopolymer
calcium hydroxide
Fly ash has been highly advocated to be re-utilized as a construction material. The most common utilization is to partially replace cement in a low-percentage scheme. However, there are several other schemes available to potentially use fly ash as binder in concrete that have not been widely exercised, especially those utilizing it in high to very high volume. In those schemes, high-volume fly ash (HVFA) concrete might use more than 50% fly ash to replace cement. To exploit its self-cementing properties, with or without the addition of other compounds, such as calcium hydroxide, fly ash might be used in very high percentage of cement replacement. In geopolymeric system, fly ash acts as the precursor of a stable binder, with the presence of highly alkaline solution. This paper demonstrates a model to investigate the potential of fly ash in several binder systems. The results show that fly ash from a good source can be utilized as an alternative binder in several different schemes.
Institute of Research and Community Outreach - Petra Christian University
2021-10-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23754
10.9744/ced.23.2.78-90
Civil Engineering Dimension; Vol. 23 No. 2 (2021): SEPTEMBER 2021; 78-90
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23754/20459
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23888
2022-02-09T02:55:33Z
civ:ART
driver
Performance of a Cold Formed Steel Pedestrian Bridge under Static and Dynamic Loads
Awaludin, Ali
Making, Maria Yasinta Menge
Ikhsan, muhammad Nur
Adiyuano, Yohan
Pedestrian bridge
cold formed steel
moving pedestrian loads
static and dynamic tests
This paper summarizes new application of CFS in bridge constructions where a seven meters long pedestrian bridge was constructed. The bridge has 1.2m width, 0.8m depth, and is composed of CFS Warren truss and bondek floor systems. Natural frequency of the bridge considering only dead load application was found as 8.54 Hz and decreased to 7.08 Hz when the live load was included. Under static load test, the application of dead load only and both dead and live loads yielded a maximum deflection of 3.53 and 8.1 mm, respectively. Normal walking and running pedestrian loads were carried out created a maximum acceleration equaled to 0.11g. Lastly, sinusoidal waves application facilitated through a three-phase induction motor having self-weight of 24.86 kgf at frequency equal to 8.5 Hz was performed for one hour resulting no decrease of the natural frequency, thus the bridge can be assumed to experience no noticeable stiffness degradation.
Institute of Research and Community Outreach - Petra Christian University
2021-10-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23888
10.9744/ced.23.2.108-114
Civil Engineering Dimension; Vol. 23 No. 2 (2021): SEPTEMBER 2021; 108-114
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23888/20462
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/23978
2022-02-09T02:55:33Z
civ:ART
driver
Experimental Investigation on the Failure Behavior of Carbon Fiber Reinforced Polymer (CFRP) Strengthened Reinforced Concrete T-beams
Utomo, Junaedi
Khusyeni, Muhammad Nur
Partono, Windu
Han, Ay Lie
Gan, Buntara S.
CFRP plate
Sheet
Load-carrying capacity
debonding
rupture
Carbon Fiber Reinforced Polymers (CFRP) are widely used as external concrete reinforcement. The behavior of T-beams strengthened in shear and flexure using CFRP sheets and plates was studied to analyze the load carrying capacity and failure mode as compared to conventional concrete members. The bonding response of the plate-to-concrete was investigated by comparing a specimen with a plate anchored at the far ends, one without anchoring. The sheets were in situ wet lay-up, the plate was pre-impregnated and pultruded during manufacturing. The test result suggested that this integrated strengthening method notably improved the load-carrying capacity, it was also demonstrated that anchoring had a positive but insignificant effect on the moment capacity and deformation. The influence of anchoring was noteworthy from the point of view that it shifted the failure mode from debonding to CFRP plate rupture. The most important factors influencing the behavior of CFRP strengthened beams are outlined.
Institute of Research and Community Outreach - Petra Christian University
2021-10-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/23978
10.9744/ced.23.2.115-122
Civil Engineering Dimension; Vol. 23 No. 2 (2021): SEPTEMBER 2021; 115-122
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/23978/20464
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/24058
2023-02-14T05:55:58Z
civ:ART
driver
Optimization of Water Distribution in Pagerwojo District Tulungagung, Indonesia, using Linear Programming Model
Hapsari, Ratih Indri
Suryadi, Akhmad
Tajalla, Affan Nurun
Linear programming
optimization
water distribution
water price
Optimization approaches has been utilized in solving complex water service problems. This study attempts to determine the optimal distribution system for clean water pipelines by applying linear programming method which enables the determination of the optimal and most affordable solution under all constraints. The decision variable was the water quantity allocated to the system. The piping investment, operational and maintenance costs in present value with 4% interest were calculated to obtain the water unit price. The allocated water should meet the requirements within a dependable discharge. The study was conducted in Pagerwojo District, Tulungagung Regency, Indonesia, grouped into three transmission lines with 106 l/s demand. There are three sources of fresh water, namely Song River, Klantur River, and Gondang Spring. The analysis reveals that the minimum cost was Rp456,679,296/month. Linear programming method is proven useful for determining the allocation of clean water in the most cost-efficient manner.
Institute of Research and Community Outreach - Petra Christian University
2022-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24058
10.9744/ced.24.1.38-45
Civil Engineering Dimension; Vol. 24 No. 1 (2022): MARCH 2022; 38-45
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24058/20628
Copyright (c) 2022 Dr. Ratih Indri Hapsari, Dr. Akhmad Suryadi, Mr. Affan Nurun Tajalla
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24060
2022-02-09T02:55:33Z
civ:ART
driver
Performance of Six- and Ten-story Reinforced Concrete Buildings Designed by using Modified Partial Capacity Design (M-PCD) Method with 70% Shear Force Ratio
Pudjisuryadi, Pamuda
Wijaya, F.
Tanuwijaya, R.
Prasetyo, B.C.
Lumantarna, Benjamin
Modified partial capacity design
partial side sway mechanism
reinforced concrete
seismic design
One design alternative of earthquake resistant building is Partial Capacity Design (PCD) method. Unlike the commonly used capacity design method, PCD allows a safe failure mechanism which is called partial sidesway mechanism. In this mechanism, all beams and some columns are allowed to experience plastic damages while some selected columns are designed to remain elastic (called elastic columns). A new approach to predict the required strengths needed to design each structural member, called modified-PCD (M-PCD) is proposed. In this research six- and ten-story reinforced concrete buildings were designed using M-PCD, and their seismic performances are investigated. The base shear force resisted by the elastic columns was set to approximately 70% of the total base shear. Both nonlinear static procedure (NSP) and nonlinear dynamic procedure (NDP) are used to analyze the structures. The results show that the expected partial side sway mechanism is observed, and the drifts of the buildings are acceptable.
Institute of Research and Community Outreach - Petra Christian University
2021-10-05
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24060
10.9744/ced.23.2.131-137
Civil Engineering Dimension; Vol. 23 No. 2 (2021): SEPTEMBER 2021; 131-137
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24060/20467
Copyright (c) 2021 Civil Engineering Dimension
oai:puslit2.petra.ac.id:article/24441
2023-03-15T01:12:41Z
civ:ART
driver
Developing Building Management System Framework using Web-based-GIS and BIM Integration
Narindri, Brigitta Petra Kartika
Nugroho, Arief Setiawan Budi
Aminullah, Akhmad
building management
BIM-GIS
framework
ArcGIS Online
web-based
Building Information Modeling (BIM) and Geographic Information systems (GIS) are two digital system innovations advantageously applied in the Architecture, Engineering, Construction, and Operations (AECO) sectors. GIS and BIM integration development is indispensable in building and infrastructure management. This integration promises several benefits for the operational phase of buildings and infrastructures. However, it faces challenges in data transformation and collaboration. This study proposes a framework and model for a web-based building management platform. The framework is developed by transforming BIM data into the GIS environment using the latest technology from ArcGIS. It allows data-sharing and collaboration among stakeholders, help build management, and is valuable for decision-making. The stakeholders, who do not need a BIM-GIS expert, could virtually see the report and updates of this building model every time.
Institute of Research and Community Outreach - Petra Christian University
2022-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24441
10.9744/ced.24.2.71-84
Civil Engineering Dimension; Vol. 24 No. 2 (2022): SEPTEMBER 2022; 71-84
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24441/20738
Copyright (c) 2022 Brigitta Petra Kartika Narindri, Arief Setiawan Budi Nugroho, Akhmad Aminullah
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24451
2023-02-14T05:55:58Z
civ:ART
driver
Locking-free Kriging-based Timoshenko Beam Elements using an Improved Implementation of the Discrete Shear Gap Technique
Tjong, Wong Foek
Santoso, Stevanus W.
Sutrisno, Mellyssa
Kriging-based finite element method
Timoshenko beam
shear locking
discrete shear gap
Kriging-based finite element method (K-FEM) is an enhancement of the conventional finite element method using a Kriging interpolation as the trial solution in place of a polynomial function. In the application of the K-FEM to the Timoshenko beam model, the discrete shear gap (DSG) technique has been employed to overcome the shear locking difficulty. However, the applied DSG was only effective for the Kriging-based beam element with a cubic basis and three element-layer domain of influencing nodes. Therefore, this research examines a modified implementation of the DSG by changing the substitute DSG field from the Kriging-based interpolation to linear interpolation of the shear gaps at the element nodes. The results show that the improved elements of any polynomial degree are free from shear locking. Furthermore, the results of beam deflection, cross-section rotation, and bending moment are very accurate, while the shear force field is piecewise constant.
Institute of Research and Community Outreach - Petra Christian University
2022-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24451
10.9744/ced.24.1.11-18
Civil Engineering Dimension; Vol. 24 No. 1 (2022): MARCH 2022; 11-18
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24451/20623
Copyright (c) 2022 Wong Foek Tjong, S.T., M.T., Ph.D., Stevanus
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24515
2023-02-14T05:55:58Z
civ:ART
driver
Layout, Topology, and Size Optimization of Steel Frame Design Using Metaheuristic Algorithms: A Comparative Study
Prayogo, Doddy
Santoso, Hasan
Budiman, Franky
Jason, Marcellino
Optimization
Metaheuristic
Steel Seismic-Ressistant Structures
SNI 1726:2019
SNI 1729:2020
SNI 7860:2020
Determining the topology, layout, and size of structural elements is one of the most important aspects in designing steel seismic-resistant structures. Optimization of these parameters is beneficial to find the lightest weight of the structure, thus reducing construction cost. This study compares the performance of three metaheuristic algorithms, namely, Particle Swarm Optimization (PSO), Symbiotic Organisms Search (SOS), and Differential Evolution (DE). Three study cases are used in order to find the lightest structural weight without violating constraints based on SNI 1726:2019, SNI 1729:2020, and SNI 7860:2020. The results of this study show that SOS has better performance than other algorithms.
Institute of Research and Community Outreach - Petra Christian University
2022-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24515
10.9744/ced.24.1.31-37
Civil Engineering Dimension; Vol. 24 No. 1 (2022): MARCH 2022; 31-37
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24515/20626
Copyright (c) 2022 Doddy Prayogo, Hasan Santoso, Franky Budiman, Marcellino Jason
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24533
2023-02-14T05:55:58Z
civ:ART
driver
Structural Systems Comparison of Simply Supported PSC Box Girder Bridge Equipped with Elastomeric Rubber Bearing and Lead Rubber Bearing
Santoso, Alvin Kurniawan
Sulistyo, Djoko
Awaludin, Ali
Setiawan, Angga Fajar
Satyarno, Iman
Purnomo, Sidiq
Harry, Ignatius
Box girder bridge
Pier
LRB
ERB
Seismic Performance
NLTHA
This study compares the influence of elastomeric rubber bearing (ERB) as the regular bearing support and lead rubber bearing (LRB) as the seismic isolation device on the seismic performance of a seven-span simply supported prestressed concrete (PSC) box girder bridge, which was analyzed using nonlinear time history analysis (NLTHA) with the OpenSees software. The results showed that the maximum pier responses and damage were smaller in models with LRB than with ERB. The bridge model using ERB occurred the slightest damage at levels II, while the one using LRB was at levels I. In addition, the highest seismic performance level in the model with ERB was at the operational limit. Meanwhile, the seismic performance in the model with LRB was at the fully operational limit. Thus, LRB was a good preference for improving the seismic performance and mitigating the damage due to the seismic excitation with a slender pier.
Institute of Research and Community Outreach - Petra Christian University
2022-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24533
10.9744/ced.24.1.19-30
Civil Engineering Dimension; Vol. 24 No. 1 (2022): MARCH 2022; 19-30
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24533/20627
Copyright (c) 2022 Ali Awaludin, Alvin Kurniawan Santoso, Djoko Sulistyo, Angga Fajar Setiawan, Iman Satyarno, Ignatius Harry, Sidiq Purnomo
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24556
2023-02-14T05:55:58Z
civ:ART
driver
Application of Modified-Partial Capacity Design Method on 6- and 15-story Square Buildings with Variation in number of Elastic Columns
Pudjisuryadi, Pamuda
Lumantarna, Benjamin
Wijaya, Fransisca
Aphrodita, C.
Jesica, A.
Karyanto, Y.
Theodora, M.K.
Modified-partial capacity design
partial side sway mechanism
structural analysis
elastic column
plastic column
Modified-Partial Capacity Design (M-PCD) is proposed as one alternative of structural design methods. In M-PCD, the partial side sway mechanism where beams and some columns may develop plastic hinges. This method uses two structural models during the design process. The models are used to simulate undamaged and damaged structures when subjected to design earthquake (R=8.0) and larger target earthquake (R=1.6) respectively. In this study, 6- and 15-story square buildings with 30% and 50% elastic column are designed using M-PCD. Performances of the buildings are investigated by using non-linear time history analysis. Results show that the buildings’ performances are still unsatisfactory, especially for the 15-story buildings. However, it should be noted that the levels of earthquakes used for the analysis were larger than that used for the design. A more accurate prediction of the required strength should be developed further to improve M-PCD.
Institute of Research and Community Outreach - Petra Christian University
2022-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24556
10.9744/ced.24.1.46-53
Civil Engineering Dimension; Vol. 24 No. 1 (2022): MARCH 2022; 46-53
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24556/20625
Copyright (c) 2022 Pamuda Pudjisuryadi, Benjamin Lumantarna, Fransisca Wijaya, C. Aphrodita, A. Jesica, Y. Karyanto, M.K. Theodora
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24613
2023-03-15T01:12:41Z
civ:ART
driver
Nonlinear Finite Element Analysis of Flexural Laminated Veneer Lumber (LVL) Sengon Slender Beam
Effendi, Mahmud Kori
Awaludin, Ali
LVL
slender beam
failure criterion
finite element analysis
lateral support
Laminated Veneer Lumber (LVL) is one of the engineered wood products consisting of wood veneers that are glued and pressed together. In this study, the behavior of LVL Sengon slender beam is numerically investigated by means of nonlinear finite element analysis (FEA), where only half of the experimental beam was modeled due to symmetry of the load configuration. The LVL Sengon wood material used Hill failure criterion with isotropic hardening rules, and its mechanical properties in both tension and compression are modelled according to its mechanical properties in tension obtained from the clear specimen test. The contact analysis is defined for each contacting and contacted elements. The FEA results well agreed with the experimental results in term of the load-deflection curve and failure mode of the beam. It is found that the lateral support has no effect on the stiffness of the beam. The beam stiffness and ultimate load increase by the increase of beam height-to-width ratio (𝑑/𝑏).
Institute of Research and Community Outreach - Petra Christian University
2022-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24613
10.9744/ced.24.2.85-92
Civil Engineering Dimension; Vol. 24 No. 2 (2022): SEPTEMBER 2022; 85-92
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24613/20788
Copyright (c) 2022 Ali Awaludin, Mahmud Kori Effendi
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24615
2023-02-14T05:55:58Z
civ:ART
driver
The Using of GIS to Delineate the Liquefaction Susceptibility Zones at Yogyakarta International Airport
Hartono, Nicholas
Fathani, Teuku Faisal
Earthquake
liquefaction severity index
QGIS
Spatial analysis is performed to delineate liquefaction susceptibility zones at Yogyakarta International Airport(YIA). The low to medium cohesionless soil consistency is predominantly observed on the upper subsoil. A shallow groundwater level and low fines content have also enlarged the likelihood of earthquake-induced liquefaction. An SPT based liquefaction triggering procedure is adopted in this study to indicate the Factor of Safety (FoS) whereas the Liquefaction Severity Index (LSI) is used to measure the severity of liquefaction by presuming its manifestation. Inverse Distance Weighted (IDW) interpolation in QGIS is chosen to produce a map with 50 m × 50 m grid size. The analysis results show the YIA’s area is prone to undergo liquefaction at various depths. However, thin liquefied layers may not generate sufficient artesian flow pressure to eject water or sand. The LSI analysis concludes that YIA area is categorized as a non-liquefied to moderate severity where the West side is the governing area
Institute of Research and Community Outreach - Petra Christian University
2022-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24615
10.9744/ced.24.1.62-70
Civil Engineering Dimension; Vol. 24 No. 1 (2022): MARCH 2022; 62-70
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24615/20630
Copyright (c) 2022 Teuku Faisal Fathani, Nicholas Hartono
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24617
2023-02-14T05:55:58Z
civ:ART
driver
Deep Well Injection Induced Seismicity
Rosidi, Dario
Induced seismicity
man-made seismicity
deep well injection
oil & gas exploration
waste disposal
Injection of fluid into subsurface geologic strata for geothermal energy, oil production, and waste disposal has been linked to induced seismic activity in the United States as well as in several other countries. According to the report of the National Research Council of United States of America thousands of induced earthquakes were reported at the numerous sites, where oil and gas recovery and waste disposal activities took place. Most of these induced earthquakes were small magnitude events (Moment Magnitude [Mw] < 4), although earthquakes of magnitude (Mw) 6.5 to 7 were also reported near the oil and gas production sites. This paper presents the results of a review of case histories on increased seismic events due to deep well injection (DWI) and oil extraction. Key factors that may lead or contribute to increased seismicity will also be discussed.
Institute of Research and Community Outreach - Petra Christian University
2022-05-13
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24617
10.9744/ced.24.1.54-61
Civil Engineering Dimension; Vol. 24 No. 1 (2022): MARCH 2022; 54-61
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24617/20629
Copyright (c) 2022 Dario Rosidi
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24663
2023-03-15T01:12:41Z
civ:ART
driver
Elasticity of Travel Time and Travel Cost of Private Vehicles and Public Transportation in Bandung, Indonesia
Helmmie, Elshaan
Joewono, Tri Basuki
Public transportation
stated preference
travel time
travel cost
elasticity
Understanding mechanism of users in responding determinant variables to use mode of transport is beneficial to anticipate the effect of policy. This study aims to identify the elasticity value of travel time and travel cost of the users of private vehicles and public transportation. Using data from users of private vehicles and public transport in Bandung, Indonesia, the elasticity of travel time and travel cost was calculated based on estimated multinomial logit model (MNL) logit. The elasticity was calculated based on gasoline prices, parking fees, transfer fees, access times, travel times, and waiting times. Based on the results of the elasticity values for travel attribute, it was found that in access time and travel time, Trans Metro Bandung (TMB) Bus had the largest elasticity of -0,564 and -5,001, respectively, so TMB Bus was the most sensitive to changes in access time and travel time. In terms of waiting times and fixed costs/gasoline, conventional taxi has the highest elasticity values of -2,630 and -1,604, respectively, so conventional taxi is the most sensitive to changes in waiting time and fixed costs/gasoline.
Institute of Research and Community Outreach - Petra Christian University
2022-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24663
10.9744/ced.24.2.101-108
Civil Engineering Dimension; Vol. 24 No. 2 (2022): SEPTEMBER 2022; 101-108
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24663/20741
Copyright (c) 2022 Elshaan Kolanus
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24770
2023-03-15T01:12:41Z
civ:ART
driver
Incremental Strength Gain Considerations in Staged Roadway Construction
Rosidi, Dario
soft ground
consolidation
incremental strength gains
staged construction
wick drains
lateral squeeze
down drag
This paper presents an alternative construction method of a highway along coastal area underlain by thick normally consolidated very soft organic clay. Due to its remote location, mitigations to strengthen the soft clay are deemed too costly and/or require significant time to mobilize. Without mitigations, the presence of this very soft clay necessitates the roadway embankment to be constructed in phases to allow partial consolidation of clayey soils to take place before additional embankment fill can be placed. At each construction phase, the additional fill thickness and staging time are determined, and the corresponding degrees of consolidation and incremental strength gains are calculated at discrete grid points within the soft organic clay. The stability of the partially built embankment is then evaluated, and the fill thickness and staging time are adjusted to meet the stability safety requirements. The settlement due to fill placement can be estimated at each construction phase and included as an overbuilt to the next fill placement thickness. Impacts of soil horizontal and vertical movements due to filling to pile foundations are also be discussed.
Institute of Research and Community Outreach - Petra Christian University
2022-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/2022-10-03
10.9744/ced.24.2.125-132
Civil Engineering Dimension; Vol. 24 No. 2 (2022): SEPTEMBER 2022; 125-132
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/2022-10-03/20744
Copyright (c) 2022 Dr. Dario Rosidi
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24878
2023-03-15T01:12:41Z
civ:ART
driver
Strength Properties of Alkaline Activated Phosphoric Acid Stabilized Laterite
AYODELE, Adekemi Loretta
Akinniyi, Abideen Morakinyo
Gbolade, Adeoluwa Peter
Adetokunbo, Adeyemi Timilehin
California bearing ratio
unconfined compressive strength
yate’s algorithm
statistical analysis
tropical laterite
This study investigated the effect of alkaline activation on the properties of Phosphoric Acid (PA) stabilized laterite. Maximum Dry Density (MDD), Optimum Moisture Content (OMC), California Bearing Ratio (CBR) and Unconfined Compressive Strength (UCS) of the laterite were determined to ascertain its suitability as a construction material. Laterite samples were stabilized with 1M and 2M PA at 5, 10 and 15%, respectively, by weight of dry soil. Some PA stabilized laterite were further mixed with an alkaline activator. All the stabilized laterites were moist cured for up to 14 days. The results show that the laterite was unsuitable as a road construction material in its natural state. The CBR of PA stabilized laterite improved with about 25%, while that with alkaline activation showed more improvement of up to 145%. The UCS of PA stabilized soil and that with alkaline activation increased with about 250% improvement. In conclusion, alkaline activation of phosphoric acid stabilized laterite soil for road construction has a great promise.
Institute of Research and Community Outreach - Petra Christian University
2022-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24878
10.9744/ced.24.2.115-124
Civil Engineering Dimension; Vol. 24 No. 2 (2022): SEPTEMBER 2022; 115-124
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24878/20743
Copyright (c) 2022 Adekemi Loretta AYODELE, Abideen Saheed Akinniyi, Adeoluwa Peter Gbolade, Adeyemi Timilehin Adetokunbo
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/24916
2023-03-15T01:12:41Z
civ:ART
driver
The Impact of Contractor Safety Leadership on Workers Safety Behavior
Andi, Andi
Sumali, Stephen Hans
Limansantoso, Giovanni Ferdinand
Safety leadership
safety behavior
safety concern
safety motivation
safety policy
safety compliance
safety participation
The importance of safety leadership for effective management of safety behavior has been acknowledged by many researches. However, its development in construction industry is lagging compared to other industry, especially in Indonesia. This research empirically evaluates the impact of contractors’ safety leadership on construction workers’ safety behavior. It explores three dimensions of safety leadership variable and two dimensions of safety behavior variable, and then examines the relationship between the two variables. Data was gathered through questionnaire survey to eighty-four workers from five on-going construction projects in Surabaya. Multiple regression analysis was performed to examine two models of the impact of safety leadership on safety behavior. The findings suggest that safety concern and safety motivation positively impact safety compliance and safety participation, whilst safety policy only have a significant positive impact on safety participation. The paper discusses these findings and their implications for shaping workers’ safety behavior in construction projects.
Institute of Research and Community Outreach - Petra Christian University
2022-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/24916
10.9744/ced.24.2.93-100
Civil Engineering Dimension; Vol. 24 No. 2 (2022): SEPTEMBER 2022; 93-100
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/24916/20740
Copyright (c) 2022 A/Prof. Dr. Andi, Stephen Hans Sumali, Giovanni Ferdinand Limansantoso
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/25073
2023-03-15T01:12:41Z
civ:ART
driver
The Effect of Welded Splice with Predetermined Gap of Concrete Spun Pile on The Response of Low Strain Integrity Test
Budi, Gogot Setyo
Tanaya, Levin S.
Low strain
dynamic test
pile integrity test
sonic pulse echo
precast concrete pile
splice
This paper presents the velocity wave of concrete spun piles with welded splice. The stress wave velocity was recorded using Pile Integrity Test. Two specimens were prepared in the experiment. The first sample was prepared visually no gap between the two end-plates of connected piles, while the second specimen was prepared by inserting 5mm thick steel plate into the splice to create a gap in its connection. The results show that a spike of reflecting stress wave still develops at the splice with and without gap, regardless the splice was welded in full circle. The relatively high spikes of reflecting waves at pile toe are noticed for both specimens with and without gaps. It shows that the full welded splice able to transfer stress wave velocity. A good quality of welded splice can be indicated by the reflecting wave at the pile toe, regardless the reflecting wave development at the splice.
Institute of Research and Community Outreach - Petra Christian University
2022-12-20
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/25073
10.9744/ced.24.2.109-114
Civil Engineering Dimension; Vol. 24 No. 2 (2022): SEPTEMBER 2022; 109-114
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/25073/20742
Copyright (c) 2022 Dr. Gogot Setyo Budi, Levin Tanaya
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/25350
2023-04-19T06:45:03Z
civ:ART
driver
Flexural and Shear Behavior of 3D Printed Reinforced Concrete Beams: An Experimental Study
Budiman, Franky
Halim, Alvin
Chandra, Jimmy
Pudjisuryadi, Pamuda
3D printed reinforced concrete beams
flexural behavior
shear behavior
experimental study
design code
longitudinal reinforcement ratio
3D Concrete Printing (3DCP) provides many advantages for construction industry especially on productivity, waste, labor, and environment. Many researches have been conducted on the material development for 3DCP. However, there are not many researches which study the structural behavior of 3DCP. This experimental research aims to analyze flexural and shear behavior of 3D printed reinforced concrete beams. Five longitudinal reinforcement ratios were used to analyze crack patterns, failure mode, ductility, and capacity of those beams. The experimental results were then compared with analytical results by using ACI design code. The results show that higher longitudinal reinforcement ratio yields higher flexural and shear capacity of 3DCP beams. Due to layer-by-layer printing process, 3DCP beams are prone to local failure of filaments. Placement of longitudinal reinforcement might initiate macroscopic voids which could cause slippage and sudden drop on the capacity. Furthermore, ACI code underestimates the capacity of 3DCP beams failing in shear by some margins.
Institute of Research and Community Outreach - Petra Christian University
2023-04-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/25350
10.9744/ced.25.1.1-9
Civil Engineering Dimension; Vol. 25 No. 1 (2023): MARCH 2023; 1-9
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/25350/20865
Copyright (c) 2023 Jimmy Chandra
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/25491
2023-04-19T06:45:03Z
civ:ART
driver
Seismic Performance Comparison of Simply Supported Hollow Slab on Pile Group Structure with Different Operational Category and Shear Panel Damper Application
Haroki, Yusuf
Awaludin, Ali
Priyosulistyo, Henricus
Setiawan, Angga Fajar
Satyarno, Iman
Numerical model
prestress effect
nonlinear time history analysis
energy dissipation
This study is aimed to compare the seismic performance of simply supported hollow slab on pile group (SHSPG) structures designed as “critical” and “essential” viaducts with shear panel damper (SPD) devices. There were three numerical models to be compared, namely SHSPG-A, SHSPG-B, and SHSPG-C. SHSPG-A is a “critical” viaduct with 35 piles per one pile head. SHSPG-B is an “essential” viaduct with 18 piles per one pile head. SHSPG-C is an “essential” viaduct with 18 piles per one pile head plus sixteen SPDs. Numerical models considered the prestressing effect of the spun pile. Nonlinear time history analyses were executed using seven pairs of recorded ground motions that had been scaled and adjusted to the seismic characteristics of Yogyakarta, Indonesia. As the result, the performance level of SHSPG-A was much better than SHSPG-B. The SPDs application could maintain SHSPG-C’s performance at the same level as SHSPG-A and dissipate 34.28%-53.03% of the seismic energy.
Institute of Research and Community Outreach - Petra Christian University
2023-04-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/25491
10.9744/ced.25.1.10-19
Civil Engineering Dimension; Vol. 25 No. 1 (2023): MARCH 2023; 10-19
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/25491/20883
Copyright (c) 2023 Yusuf Haroki, Ali Awaludin, Henricus Priyosulistyo, Angga Fajar Setiawan, Iman Satyarno
https://creativecommons.org/licenses/by/4.0
oai:puslit2.petra.ac.id:article/25864
2023-04-19T06:45:03Z
civ:ART
driver
On the Weights for Characteristics and Comparables for Property Valuation using Quality Rating Valuation Estimation
Agustin, Karina
Soewandi, Hanijanto
Widjojo, Susan
Property Valuation
Quality Rating Valuation Estimation (QRVE)
Gower Similarity index
Multiple Linear Regression (MLR)
Clustering
This study considers the problem of finding weights for building characteristics and compares buildings in property valuation to provide a more rigorous analytical foundation for a simple yet practical valuation technique knowns as Quality Rating Valuation Estimation (QRVE). Mathematically, we prove that the “best” characteristic weights can be obtained from Multiple Linear Regression Analysis (MRA) coefficients. Furthermore, by applying the Gower Similarity index and the Partition Around Medoid (PAM) clustering technique, the proposed algorithm provides an appropriate similarity of the weighing of compared buildings. The case studies illustrate a way to select a subset of characteristics when there are many of them with two numerical examples, as well as a complete modification of QRVE in conjunction with the grid adjustment technique. The modified QRVE proposal results in a very reasonable and high valuation performance of the building value estimate.
Institute of Research and Community Outreach - Petra Christian University
2023-04-19
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
application/pdf
https://ced.petra.ac.id/index.php/civ/article/view/25864
10.9744/ced.25.1.37-47
Civil Engineering Dimension; Vol. 25 No. 1 (2023): MARCH 2023; 37-47
1979-570X
1410-9530
eng
https://ced.petra.ac.id/index.php/civ/article/view/25864/20869
Copyright (c) 2023 Karina Agustin, Hanijanto Soewandi, Susan Widjojo
https://creativecommons.org/licenses/by/4.0
a2b8b74138687dbfc843ff49d19f78a0