DOI QR코드

DOI QR Code

Shear stiffness of headed studs on structural behaviors of steel-concrete composite girders

  • He, Jun (School of Civil Engineering, Changsha University of Science and Technology) ;
  • Lin, Zhaofei (Country Garden) ;
  • Liu, Yuqing (Department of Bridge Engineering, Tongji University) ;
  • Xu, Xiaoqing (School of Civil Engineering, Chongqing University) ;
  • Xin, Haohui (School of Human Settlements and Civil Engineering, Xi'an Jiaotong University) ;
  • Wang, Sihao (Department of Bridge Engineering, Tongji University)
  • 투고 : 2020.01.27
  • 심사 : 2020.08.14
  • 발행 : 2020.09.10

초록

Steel-concrete composite structures have been extensively used in building, bridges, and other civil engineering infrastructure. Shear stud connectors between steel and concrete are essential in composite members to guarantee the effectiveness of their behavior in terms of strength and deformability. This study focuses on investigating the shear stiffness of headed studs embedded in several types of concrete with wide range of compressive strength, and their effects on the elastic behavior of steel-concrete composite girders were evaluated. Firstly, totally 206 monotonic push-out tests from the literature were reviewed to investigate the shear stiffness of headed studs embedded in various types of concrete (NC, HPC, UHPC etc.). Shear stiffness of studs is defined as the secant stiffness of the load-slip curve at 0.5Vu, and a formulation for predicting defined shear stiffness in elastic state was proposed, indicating that the stud diameter and the elastic modulus of steel and concrete are the main factors. And the shear stiffness predicted by the new formula agree well with test results for studs with a diameter ranging from 10 to 30 mm in the concrete with compressive strength ranging from 22.0 to 200.0MPa. Then, the effects of shear stiffness on the elastic behaviors of composite girders with different sizes and under different loading conditions were analyzed, the equations for calculating the stress and deformation of simply supported composite girders considering the influence of connection's shear stiffness were derived under different loading conditions using classical linear partial-interaction theory. As the increasing of shear stiffness, the stress and deflection at the most unfavorable section under partial connected condition tend to be those under full connected condition, but the approaching speed decreases gradually. Finally, the connector's shear stiffness was recommended for fully connection in composite girders with different dimensions under different loading conditions. The findings from present study may provide a reference for the prediction of shear stiffness for headed studs and the elastic design of steel-concrete composite girder.

키워드

과제정보

The authors gratefully acknowledge the financial support provided by the National Nature Science Foundations of China (51978081, 51778069, 51708047), Horizon 2020- Marie Sklodowska-Curie Individual Fellowship of European Commission (REUSE: 793787), The Scientific Research Foundation of Hunan Provincial Education Department (18A131), Key Discipline Fund Project of Civil Engineering of Changsha University of Sciences and Technology (18ZDXK06).

참고문헌

  1. American Association of State Highway and Transportation Officials (AASHTO) (2014), AASHTO LRFD bridge design specifications. AASHTO, Washington DC, USA.
  2. An, L. and Cederwall, K. (1996), "Push-out tests on studs in high strength and normal strength concrete", J. Constr. Steel Res., 36(1), 15-29.https://doi.org/10.1016/0143-974X(94)00036-H.
  3. ANSI/AISC 360-05 (2005), Specification for Structural Steel Buildings. American Institute of Steel Construction.
  4. Badie, S.S., Tadros, M.K., Kakish, H.F., Splittgerber, D.L. and Baishya, M. C. (2002), "Large shear studs for composite action in steel bridge girders", J. Bridg. Eng., 7(3), 195-203. https://doi.org/10.1061/(ASCE)1084-0702(2002)7:3(195).
  5. British Standard Institution (BSI) (1978), Steel, Concrete and Composite Bridges, Part 3: Code of Practice for Design of Steel Bridges. BS5400, British Standard Institution, London, UK.
  6. Cao, J., Shao, X., Deng, L. and Gan, Y. (2017), "Static and fatigue behavior of short-headed studs embedded in a thin ultra high performance concrete layer", J. Bridge Eng. ASCE, 22(5), 04017005. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001031.
  7. Comite Europeen de Normalisation (CEN) (2005), Eurocode 4: Design of Composite Steel and Concrete Structures - Part 2: General Rules and Rules for Bridges. EN 1994-2, Brussels, Belgium.
  8. Chen, S. (2005), "Experimental study of prestressed steel-concrete composite beams with external tendons for negative moments", J. Constr. Steel Res., 61(12), 1613-1630. https://doi.org/10.1016/j.jcsr.2005.05.005.
  9. Colajanni, P., La Mendola, L. and Monaco, A. (2014), "Stress transfer mechanism investigation inhybrid steel trussed- concrete beams by push-out tests", J. Constr. Steel Res., 95, 56-70. https://doi.org/10.1016/j.jcsr.2013.11.025.
  10. Davies, C. (1967), "Small-scale push-out tests on welded stud shear connectors", Concrete, 1(9), 311-316.
  11. Dogan, O. and Roberts, T.M. (2012), "Fatigue performance and stiffness variation of stud connectors in steel-concrete-steel sandwich systems", J. Constr. Steel Res., 70, 86-92. https://doi.org/10.1016/j.jcsr.2011.08.013.
  12. Dominic, K., Kay, W. and Zaghi, A.E. (2018), "Push-out behavior of headed shear studs welded on thin plates and embedded in UHPC", Eng. Struct., 173, 429-441. https://doi.org/10.1016/j.engstruct.2018.07.013.
  13. Gattesco, N., Giuriani, E. and Gubana, A. (1997), "Low-cycle fatigue test on stud shear connectors", J. Struct. Eng. - ASCE, 123(2), 145-50. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:2(145).
  14. Han, Q., Wang, Y., Xu, J. and Xing, Y. (2015), "Static behavior of stud shear connectors in elastic concrete-steel composite beams", J. Constr. Steel Res., 113, 115-26. https://doi.org/10.1016/j.jcsr.2015.06.006.
  15. Han, Q., Wang, Y., Xu, J. and Xing, Y. (2017), "Numerical analysis on shear stud in push-out test with crumb rubber concrete", J. Constr. Steel Res., 130, 148-158. https://doi.org/10.1016/j.jcsr.2016.12.008
  16. He, J., Liu, Y., Chen, A. and Yoda, T. (2010), "Experimental study on inelastic mechanical behaviour of composite girders under hogging moment", J. Constr. Steel Res., 66(1), 37-52. https://doi.org/10.1016/j.jcsr.2009.07.005.
  17. He, J., Liu, Y., Chen, A., Wang, D. and Yoda, T. (2014), "Bending behavior of concrete-encased composite I-girder with corrugated steel web", Thin-Wall. Struct., 74, 70-84. https://doi.org/10.1016/j.tws.2013.08.003.
  18. He, J., Wang, S., Liu, Y., Lyu, Z. and Li, C. (2017), "Mechanical behavior of partially encased composite girder with corrugated steel web: interaction of shear and bending", Engineering, 3, 806-816. https://doi.org/10.1016/j.eng.2017.11.005.
  19. He, J., Liu, Y., Wang, S., Xin, H., Chen, H. and Ma, C. (2019), "Experimental study on structural performance of prefabricated composite box girder with corrugated webs and steel tube slab", J. Bridge Eng. ASCE, 24(6), 04019047. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001405.
  20. He, J., Li, X., Li, C., Correia, J., Xin, H. and Zhou, M. (2020a), "A novel asynchronous-pouring-construction technology for prestressed concrete box girder bridges with corrugated steel webs", Structures. 27, 1940-1950. https://doi.org/10.1016/j.istruc.2020.07.077.
  21. He, J., Wang, S., Liu Y., Wang, D. and Xin, H. (2020b), "Shear behavior of steel I-girder with stiffened corrugated web, Part II: Numerical study", Thin-Wall. Struct., 147, https://doi.org/10.1016/j.tws.2019.02.023.
  22. JSCE (2009), Standard specifications for hybrid structures, Japan Society of Civil Engineers, Tokyo.
  23. JTG/T D64-01-2015, Specifications for Design and Construction of Highway Steel-concrete Composite Bridge, China Communications Press, China.
  24. Johnson R.P. (2008). Composite structures of steel and concrete: Beams, slabs and frames for buildings, Third Edition. Oxford, Blackwell publishing Ltd.
  25. Johnson, R.P. and May, I.M. (1975), "Partial-interaction design of composite beams", The Structural Engineer, 8(53), 305-311.
  26. Kim, J.S., Kwark, J. and Joh, C. (2015), "Headed stud shear connector for thin ultra high performance concrete bridge deck", J. Constr. Steel Res., 108, 23-30. https://doi.org/10.1016/j.jcsr.2015.02.001.
  27. Lam, D. and El-Lobody, E. (2005), "Behavior of headed stud shear connectors in composite beam", J. Struct. Eng. - ASCE, 131(1), 96-107. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:1(96).
  28. 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. Constr. Steel Res., 61(9), 1270-1285. https://doi.org/10.1016/j.jcsr.2005.01.007.
  29. Lin, W., Yoda. T. and Taniguchi, N. (2014a), "Application of SFRC in steel-concrete composite beams subjected to hogging moment", J. Constr. Steel Res., 101, 175-83. https://doi.org/10.1016/j.jcsr.2014.05.008.
  30. Lin, W., Yoda, T., Taniguchi, N., Kasano, H. and He, J. (2014b), "Mechanical performance of steel-concrete composite beams subjected to a hogging moment", J. Struct. Eng. -ASCE, 140(1), 04013031. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000800.
  31. Lin, Z. (2016), Design method of stud connections between concrete slabs and steel girders in steel-concrete composite bridges, Doctoral Thesis, Tongji University, Shanghai, China (in Chinese).
  32. Lin, Z., Liu, Y. and He, J. (2014), "Behavior of stud connectors under combined shear and tension loads", Eng. Struct., 81, 362-376. https://doi.org/10.1016/j.engstruct.2014.10.016.
  33. Lin, Z., Liu, Y. and He, J. (2015), "Static behaviour of lying multi-stud connectors in cable-pylon anchorage zone", Steel Compos. Struct., 18(6), 1369-1389. https://doi.org/10.12989/scs.2015.18.6.1369.
  34. Lin, Z., Liu, Y. and Roeder, C.W. (2016), "Behavior of stud connections between concrete slabs and steel girders under transverse bending moment", Eng. Struct., 117, 130-44. https://doi.org/10.1016/j.engstruct.2016.03.014.
  35. Liu, Y., Zhang, Q., Bao, Y. and Bu, Y. (2018), "Static and fatigue push-out tests of short headed shear studs embedded in Engineered Cementitious Composites (ECC)", Eng. Struct., 182, 29-38. https://doi.org/10.1016/j.engstruct.2018.12.068.
  36. Luo, Y., Hoki, K., Hayashi, K. and Nakashima, M. (2016), "Behavior and strength of headed stud-SFRCC shear connection. I: experimental study", J. Struct. Eng., 142(2), 1-10. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001363
  37. Oehlers, D.J. and Bradford, M.A. (1999), Elementary behaviour of composite steel and concrete structural members. Oxford: Butterworths-Heinemann.
  38. Oehlers, D.J. and Coughlan, C.G. (1986), "The shear stiffness of stud shear connections in composite beams", J. Constr. Steel Res., 6(4), 273-284. https://doi.org/10.1016/0143-974X(86)90008-8.
  39. Ollgaard, J.G., Slutter, R.G. and Fisher, J.W. (1971), "Shear strength of stud connectors in light weight and normal weight concrete", Eng. J., 8, 55-64.
  40. Qi, J., Hu, Y., Wang, J. and Li, W. (2019), "Behavior and strength of headed stud shear connectors in ultra-high performance concrete of composite bridges", Front. Struct. Civ. Eng., 13(5), 1138-1149. https://doi.org/10.1007/s11709-019-0542-6.
  41. Pallares, L. and Hajjar. J.F. (2010), "Headed steel stud anchors in composite structures, Part I: Shear", J. Constr. Steel Res., 66(2), 198-212. https://doi.org/10.1016/j.jcsr.2009.08.009.
  42. Ranzi, G., Leoni, G. and Zandonini, R. (2013), "State of the art on the time-dependent behaviour of composite steel-concrete structures", J. Constr. Steel Res., 80, 252-263. https://doi.org/10.1016/j.jcsr.2012.08.005.
  43. 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.
  44. Spacone, E. and El-Tawil, S. (2004), "Nonlinear analysis of steel concrete composite structures: state of the art", J. Struct. Eng., 130, 159-168. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(159).
  45. Spremic, M., Markovic, Z. and Veljkovic, M. (2013), "Push-out experiments of headed shear studs in group arrangements" Adv. Steel Constr., 9(2), 139-160.https://doi.org/10.18057/IJASC.2013.9.2.4.
  46. Spremic, M., Pavlovic, M., Markovic, Z., Veljkovic, M. and Budjevac, D. (2018), "FE validation of the equivalent diameter calculation model for grouped headed studs", Steel Compos. Struct., 26(3), 375-386. https://doi.org/10.12989/scs.2018.26.3.375.
  47. Suwaed A.S.H. and Karavasilis T.L. (2018), "Removable shear connector for steel-concrete composite bridges", Steel Compos. Struct., 29(1), 107-123. https://doi.org/10.12989/scs.2018.29.1.107.
  48. Tian, Q. and Du, X. (2016), "Short stud push-out test study of high performance concrete composite pavement", Bridge Constr., 46(1), 40-46 (in Chinese).
  49. Valente, I.B. and Cruz, P.J.S. (2009), "Experimental analysis of shear connection between steel and lightweight concrete", J. Constr. Steel Res., 65, 1954-1963. https://doi.org/10.1016/j.jcsr.2009.06.001.
  50. Viest, I.M. (1956), "Investigation of stud shear connectors for composite concrete and steel t-beams", ACI J. Proceedings, 52(4), 875-892.
  51. Wang, J., Qi, J., Tong, T., Xu, Q. and Xiu, H. (2019), "Static behavior of large stud shear connectors in steel-UHPC composite structures", Eng. Struct., 178, 534-542. https://doi.org/10.1016/j.engstruct.2018.07.058.
  52. Wang, J. Xu, Q., Yao, Y., Qi, J. and Xiu, H. (2018), "Static behavior of grouped large headed stud-UHPC shear connectors in composite structures", Compos. Struct., 206, 202-214. https://doi.org/10.1016/j.compstruct.2018.08.038.
  53. Wang, Q. (2013), Experimental research on mechanical behavior and design method of stud connectors. Doctoral Thesis, Tongji University, Shanghai, China (in Chinese).
  54. Wang, Y.C. (1998), "Deflection of steel-concrete composite beams with partial shear interaction", J. Struct. Eng., 124, 1159-1165. http://dx.doi.org/10.1061/(ASCE)0733-9445(1998)124:10(1159).
  55. Xu, C., Su, Q. and Masuya, H. (2017), "Static and fatigue performance of stud shear connector in steel fiber reinforced concrete", Steel Compos. Struct., 24(4), 467-479. https://doi.org/10.12989/scs.2017.24.4.467.
  56. Xu, C., Su, Q. and Masuya, H. (2018), "Static and fatigue behavior of the stud shear connector in lightweight concrete", Int. J. Steel Struct., 18, 569-581. https://doi.org/10.1007/s13296-018-0014-1.
  57. Xu, X., Liu, Y. and He, J. (2014), "Study on mechanical behavior of rubber-sleeved studs for steel and concrete composite structures", Constr. Build. Mater., 53, 533-546. https://doi.org/10.1016/j.conbuildmat.2013.12.011.
  58. Xu, X. and Liu, Y. (2016), "Analytical and numerical study of the shear stiffness of rubber-sleeved stud", J. Constr. Steel Res., 123, 68-78. https://doi.org/10.1016/j.jcsr.2016.04.020.
  59. Xu, X. and Liu, Y. (2019), "Analytical prediction of the deformation behavior of headed studs in monotonic push-out tests", Adv. Struct. Eng., 22(7), 1711-1726. https://doi.org/ 10.1177/1369433218821750.
  60. Xue, D., Liu, Y., Yu, Z. and He, J. (2012), "Static behavior of multi-stud shear connectors for steel-concrete composite bridge", J. Constr. Steel Res., 74(8), 1-7. https://doi.org/10.1016/j.jcsr.2011.09.017.
  61. Xue, W., Ding, M., Wang, H. and Luo, Z. (2008), "Static behavior and theoretical model of stud shear connectors", J. Bridge Eng., 13(6), 623-634. https://doi.org/10.1061/(ASCE)1084-0702(2008)13:6(623).
  62. Zhan, Y., Yin, C., Liu, F., Song, R., Deng, K. and Sun, J. (2020), "Push-out tests on headed studs and PBL shear connectors considering external pressure", J. Bridge Eng., 25(1), 04019125. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001506.