A Simple Technique to Determine Interface Slip of Stud Connected SCC Girders

Prakash, A., Lakshmanan, N., Anandavalli, N., Madheswaran, C.K., Iyer, N.R., Rajasankar, J.




Abstract


A simple technique is proposed to compute interface slip of stud connected steel-concrete composite (SCC) girders based on the results of a flexure test. The technique makes use of relative longitudinal displacement of the concrete slab and steel beam to calculate the interface slip. In the flexure test of a SCC girder, a cost-effective instrumentation arrangement consisting of mechanical dial gauges is used to measure the relative longitudinal displacement. Responses measured from experiments on SCC girders conducted by the authors are used for numerical implementation and validation of the technique. Alternatively, interface slip is also evaluated by applying an analytical model which is based on first principles of mechanics. The values of interface slip computed by using the proposed technique are found to have close correlation with those of the analytical model. The effect of edge restraint on slip due to friction between steel and concrete is also studied.


Keywords


Dial gauges, end correction, interface slip, slip strain, steel-concrete composite girder, stud connector.

References


  1. Fam, A., MacDougall, C., and Shaat, A., Upgrading Steel–Concrete Composite Girders and Repair of Damaged Steel Beams using Bonded CFRP Laminates, Thin-Walled Structures, 47(10), 2009, pp. 1122-1135.[CrossRef]
  2. Jeong Y.J., Kim, H.Y. and Kim, S. H., Partial Interaction Analysis with Push-out Tests, Journal of Constructional Steel Research, 61(9), 2005, pp. 1318-1331.[CrossRef]
  3. Oehlers, D. J., Nguyen, N.T., Ahmed, M., and Bradford, M.A., Partial Interaction in Composite Steel and Concrete Beams with Full Shear Connection, Journal of Constructional Steel Research, 41(2-3), 1997, pp. 235-248.[CrossRef]
  4. Viest, I. M., Investigation of Stud Shear Connectors for Composite Concrete and Steel T-beam, Journal of American Concrete Institute, 52(4), 1956, pp. 875-891.
  5. Chapman, J. C. and Balakrishnan, S., Experiments on Composite Beams, Structural Engineering, 42(11), 1964, pp. 369-383.
  6. Slutter R. G. and Driscoll, G. C., Flexural Strength of Steel-Concrete Composite Beams, Journal of Structural Division, ASCE, 91(ST-2), 1965, pp. 71-99.
  7. Ayoub, A., A Force Based Model for Composite Steel-Concrete Beams with Partial Interaction, Journal of Constructional Steel Research, 61(3), 2005, pp 387-414.[CrossRef]
  8. Zona, A., Barbato, M., Asta, A.D., and Dezi, L., Probabilistic Analysis for Design Assessment of Continuous Steel–Concrete Composite Girders, Journal of Constructional Steel Research, 66(7), 2010, pp. 897-905.[CrossRef]
  9. He, J., Liu, Y., Chen, A., and Yoda, T., Experimental Study on Inelastic Mechanical Behaviour of Composite Girders under Hogging Moment, Journal of Constructional Steel Research, 66(1), 2010, pp. 37-52.[CrossRef]
  10. Zurkiewiez, B. and Braymand, S., Experimental Study of a Pre-Cracked Steel-Concrete Beam, Journal of Constructional Steel Research, 63(1), 2007, pp. 135-144.[CrossRef]
  11. Nie, J., Xiao, Y., Tan, Y., and Wang, H., Experimental Studies on Behaviour of Composite Steel High-Strength Concrete Beams, ACI Structural Journal; 101(2), 2004, pp. 245-251.
  12. El-Lobody, E., Performance of Composite Girders Strengthened using Carbon Fibre Reinforced Polymer Laminates, Thin-Walled Structures, 49(11), 2011, pp. 1429-1441.[CrossRef]
  13. Larbi, A.S., Ferrier, A., and Hamelin, P., Concrete to Steel Lap Joint Failure Criteria Under Combined Shear and Peeling Stress, Journal of Constructional Steel Research, 65(2), 2009, pp. 386-394.[CrossRef]
  14. Bullo, S. and Marco, R. D., A Simplified Method for Assessing the Ductile Behaviour of Stud Connectors in Composite Beams with high Strength Concrete Slab, Journal of Constructional Steel Research, 60(9), 2004, pp. 1387-1408.[CrossRef]


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