Steel and Composite Structures

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Static behaviour of multi-row stud shear connectors in high- strength concrete

  • Su, Qingtian (Department of Bridge Engineering, Tongji University) ;
  • Yang, Guotao (Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, The University of New South Wales) ;
  • Bradford, Mark A. (Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, The University of New South Wales)
  • Received : 2013.12.03
  • Accepted : 2014.05.02
  • Published : 2014.12.25
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Abstract

In regions of high shear forces in composite bridges, headed stud shear connectors need to be arranged with a small spacing in order to satisfy the design requirement of resisting the high interface shear force present at this location. Despite this, studies related to groups of headed studs are somewhat rare. This paper presents an investigation of the static behaviour of grouped stud shear connectors in high-strength concrete. Descriptions are given of five push-out test specimens with different arrangements of the studs that were fabricated and tested, and the failure modes, load-slip response, ultimate load capacities and related slip values that were obtained are reported. It is found that the load-slip equation given by some researchers based on a single stud shear connector in normal strength concrete do not apply to grouped stud shear connectors in high-strength concrete, and an algebraic load-slip expression is proposed based on the test results. Comparisons between the test results and the formulae provided by some national codes show that the equations for the ultimate capacity provided in these codes are conservative when used for connectors in high-strength concrete. A reduction coefficient is proposed to take into account the effect of the studs being in a group.

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References

  1. AASHTO (2004), LRFD Bridge Design Specifications, (3rd Edition), American Association of State Highway and Transportation Officials, Washington, D.C., USA.
  2. An, L. and Cederwall, K. (1996), "Push-out tests on studs in high strength and normal strength concrete", J. Construct. Steel Res., 36(1), 15-29. https://doi.org/10.1016/0143-974X(94)00036-H
  3. Ansourian, P. and Roderick, J.W. (1978), "Analysis of composite beams", J. Struct. Div., ASCE, 104(10), 1631-1645.
  4. Bradford, M.A., Filonov, A., Hogan, T.J., Uy, B. and Ranzi, G. (2006), "Strength and ductility of shear connection in composite T-beams with trapezoidal steel decking", Proceedings of the 8th International Conference on Steel, Space and Composite Structures, Kuala Lumpur, Malaysia, May, pp. 15-26.
  5. British Standards Institution (2005a), Eurocode 4: Design of Composite Structures - Part 1.1 General rules and rules for buildings, BS EN 1994-1-1, BSI, London, UK.
  6. British Standards Institution (2005b), Eurocode 4: Design of Composite Structures - Part 1.2 General rules and rules for bridges, BS EN 1994-1-2, BSI, London, UK.
  7. Chapman, J.C. and Balakrishnan, S. (1964), "Experiments on composite beams", The Struct. Eng., 42(11), 369-383.
  8. Clarke, J.L. (1972), "The fatigue behaviour of stud shear connectors under rotating shear", Proceedings of the Institution of Civil Engineers, London, UK, December, pp. 545-555.
  9. Davies, C. (1967), "Small-scale push-out tests on welded stud shear connectors", Concrete J., 1(9), 311-320.
  10. Gattesco, N. and Giuriani, E. (1996), "Experimental study on stud shear connectors subjected to cyclic loading", J. Construct. Steel Res., 38(1), 1-21. https://doi.org/10.1016/0143-974X(96)00007-7
  11. Gattesco, N., Giuriani, E. and Gubana, A. (1997), "Low-cycle fatigue test on stud shear connectors", J. Struct. Eng., ASCE, 123(2), 145-150. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:2(145)
  12. Gilmour, R.S. (1974), "Friction welding stud shear connectors to steel beams", Met Constr-Brit Weld, 6(5), 150-152.
  13. Johnson, R.P. (2000), "Resistance of stud shear connectors to fatigue", J. Construct. Steel Res., 56(2), 101-116. https://doi.org/10.1016/S0143-974X(99)00082-6
  14. Johnson, R.P. (2004), Composite Structures of Steel and Concrete: Beams, Slabs, Columns and Frames for Buildings, Blackwell Scientific Publications, Oxford, UK.
  15. Johnson, R.P. and Molenstra, N. (1991), "Partial shear connection in composite beams in buildings", Proceedings of the Institution of Civil Engineers, 91(4), 679-704.
  16. Johnson, R.P., Greenwood, R.D. and Van Dalen, K. (1969), "Stud shear-connectors in hogging moment regions of composite beams", The Struct. Eng., 47(9), 345-350.
  17. Kim, B., Wright, H.D., Cairns, R. and Bradford, M.A. (1999), "The numerical simulation of shear connection", Proceedings of the 16th Australasian Conference on Structures and Materials, Sydney, Australia, December, pp. 341-346.
  18. Lam, D. (2007), "Capacities of headed stud shear connectors in composite steel beams with precast hollowcore slabs", J. Construct. Steel Res., 63(9), 1160-1174. https://doi.org/10.1016/j.jcsr.2006.11.012
  19. Lam, D. and El-Lobody, E. (2005), "Behavior of headed stud shear connectors in composite beams", J. Struct. Eng., ASCE, 131(1), 96-107. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:1(96)
  20. Lee, P.G., Shim, C.S. and Chang, S.P. (2005), "Static and fatigue behavior of large stud shear connectors for steel-concrete composite bridges", J. Construct. Steel Res., 61(9), 1270-1285. https://doi.org/10.1016/j.jcsr.2005.01.007
  21. Liu, Y. and Alkhatib, A. (2013), "Experimental study of static behaviour of stud shear connectors", Can. J. Civil Eng., 40(9), 909-916. https://doi.org/10.1139/cjce-2012-0489
  22. Lorenc, W. and Kubica, E. (2006), "Behavior of composite beams prestressed with external tendons: Experimental study", J. Construct. Steel Res., 62(12), 1353-1366. https://doi.org/10.1016/j.jcsr.2006.01.007
  23. Ministry of Construction of China (2003), Code for Design of Steel Structures, GB50017-2003, China Planning Press, Beijing, China.
  24. Mirza, O. and Uy, B. (2009a), "Behaviour of headed stud shear connectors for composite steel-concrete beams at elevated temperatures", J. Construct. Steel Res., 65(3), 662-674. https://doi.org/10.1016/j.jcsr.2008.03.008
  25. Mirza, O. and Uy, B. (2009b), "Effects of steel fibre reinforcement on the behaviour of headed stud shear connectors for composite steel-concrete beams", Adv. Steel Construct., 5(1), 72-95.
  26. Mirza, O. and Uy, B. (2010a), "Effects of strain regimes on the behaviour of headed stud shear connectors for composite steel-concrete beams", Adv. Steel Construct., 6(1), 635-661.
  27. Mirza, O. and Uy, B. (2010b), "Effects of the combination of axial and shear loading on the behaviour of headed stud steel anchors", Eng. Struct., 32(1), 93-105. https://doi.org/10.1016/j.engstruct.2009.08.019
  28. Nawy, E.G. (2001), Fundamentals of High Performance Concrete, John Wiley & Sons, New York, NY, USA.
  29. Nguyen, H.T. and Kim, S.E. (2009), "Finite element modeling of push-out tests for large stud shear connectors", J. Construct. Steel Res., 65(10-11), 1909-1920. https://doi.org/10.1016/j.jcsr.2009.06.010
  30. Oehlers, D.J. and Bradford, M.A. (1995), "Composite steel and concrete structural members: Fundamental behaviour", Pergamon, Oxford, UK.
  31. Oehlers, D.J. and Coughlan, C.G. (1986), "The shear stiffness of stud shear connections in composite beams", J. Construct. Steel Res., 6(4), 273-284. https://doi.org/10.1016/0143-974X(86)90008-8
  32. Oehlers, D.J. and Foley, L. (1985), "The fatigue-strength of stud shear connections in composite beams", Proceedings of the Institution of Civil Engineers, 79(2), 349-364.
  33. Ollgaard, J.G., Slutter, R.G. and Fisher, J.W. (1971), "Shear strength of stud connectors in lightweight and normal-weight concrete", Eng. J., AISC, 8(2), 55-64.
  34. Roberts, T.M. and Dogan, O. (1998), "Fatigue of welded stud shear connectors in steel-concrete-steel sandwich beams", J. Construct. Steel Res., 45(3), 301-320. https://doi.org/10.1016/S0143-974X(97)00070-9
  35. Shim, C.S., Lee, P.G. and Yoon, T.Y. (2004), "Static behavior of large stud shear connectors", Eng. Struct., 26(12), 1853-1860. https://doi.org/10.1016/j.engstruct.2004.07.011
  36. Slutter, R.G. and Driscoll, G.C. (1965), "Flexural strength of steel-concrete composite beams", J. Struct. Div., ASCE, 91(2), 71-99.
  37. Spremic, M., Markovic, Z., Veljkovic, M. and Budjevac, D. (2013), "Push-out experiments of headed shear studs in group arrangements", Adv. Steel Construct., 9(2), 139-160.
  38. Van Dalen, K. (1983), "The strength of stud shear connectors at low-temperatures", Can. J. Civil Eng., 10(3), 429-436. https://doi.org/10.1139/l83-070
  39. Viest, I.M. (1956), "Investigation of stud shear connectors for composite concrete and steel T-beams", J. Am. Concrete Inst., 27(8), 875-981.
  40. Xu, C., Sugiura, K., Wu, C. and Su, Q.T. (2012), "Parametrical static analysis on group studs with typical push-out tests", J. Construct. Steel Res., 72, 84-96. https://doi.org/10.1016/j.jcsr.2011.10.029
  41. Xue, W.C., Ding, M., Wang, H. and Luo, Z.W. (2008), "Static behavior and theoretical model of stud shear connectors", J. Bridge Eng., ASCE, 13(6), 623-634. https://doi.org/10.1061/(ASCE)1084-0702(2008)13:6(623)
  42. Xue, D.Y., Liu, Y.Q., Yu, Z. and He, J. (2012), "Static behavior of multi-stud shear connectors for steel-concrete composite bridge", J. Construct. Steel Res., 74, 1-7. https://doi.org/10.1016/j.jcsr.2011.09.017
  43. Yam, L.C.P. and Chapman, J.C. (1968), "The inelastic behaviour of simply supported composite beams of steel and concrete", Proceedings of the Institution of Civil Engineers London, 41(4), 651- 683.

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