DOI QR코드

DOI QR Code

Analysis of concrete-filled steel tubular columns with "T" shaped cross section (CFTTS)

  • Wang, Qin-Ting (College of Civil Engineering, Henan Polytechnic University) ;
  • Chang, Xu (College of Civil Engineering, Henan Polytechnic University)
  • 투고 : 2012.05.14
  • 심사 : 2013.06.03
  • 발행 : 2013.07.25

초록

This paper presents a numerical study of axially loaded concrete-filled steel tubular columns with "T" shaped cross section (CFTTS) based on the ABAQUS standard solver. Two types of columns with "T" shaped cross section, the common concrete-filled steel tubular columns with "T" shaped cross section (CCFTTS) and the double concrete-filled steel tubular columns with "T" shaped cross section (DCFTTS), are discussed. The failure modes, confining effects and load-displacement curves are analyzed. The numerical results indicate that both have the similar failure mode that the steel tubes are only outward buckling on all columns' faces. It is found that DCFTTS columns have higher axial capacities than CCFTTS ones duo to the steel tube of DCFTTS columns can plays more significant confining effect on concrete. A parametric study, including influence of tube thickness, concrete strength and friction coefficient of tube-concrete interface on the axial capacities is also carried out. Simplified formulae were also proposed based on this study.

키워드

참고문헌

  1. ACI 318-95 (1999), Building code requirements for structural concrete and commentary, American Concrete Institute, Detroit, MI, USA.
  2. ASCE (1982), ASCE task committee on concrete and masonry structure, New York, State of the Art Report on Finite Element Analysis of Reinforced Concrete.
  3. Chang, X., Wei, Y.Y. and Yun, Y.C. (2012), "Analysis of steel-reinforced concrete-filled steel tubular (SRCFST) columns under cyclic loading", Constr. Build. Mater., 28(1), 88-95. https://doi.org/10.1016/j.conbuildmat.2011.08.033
  4. Dai, X. and Lam, D. (2010), "Numerical modeling of the axial compressive behaviour of short concrete-filled elliptical steel columns", J. Constr. Steel. Res., 66(7), 1057-1069. https://doi.org/10.1016/j.jcsr.2010.03.008
  5. Du, G.F., Xu, L.H., Weng, F. and Xu, H.R. (2008), "Test study on behavior of T-shaped concrete filled steel tubular short columns under axial compression", J. HUST (Urban science edition), 25(3), 188-194. [in Chinese].
  6. Ellobody, E., Young, B. and Lam, D. (2006), "Behaviour of normal and high strength concrete-filled compact steel tube circular stub columns", J. Constr. Steel. Res., 62(7), 113-134.
  7. Han, L.H. (2007), Concrete-Filled Steel Tubular Structures, Theory and Practice, Science Press, Beijing, China. [in Chinese].
  8. Han, L.H., Yao, G.H. and Zhao, X.L. (2005a), "Tests and calculations of hollow structural steel (HSS) stub columns filled with self-consolidating concrete (SCC)", J. Constr. Steel. Res., 69(1), 1241-1269.
  9. Han, L.H., Yao, G.H., Chen, Z.P. and Yu, Q. (2005b), "Experimental behaviour of steel tube confined concrete (STCC) columns", Steel Compos. Struct., Int. J., 5(6), 459-484. https://doi.org/10.12989/scs.2005.5.6.459
  10. Hibbitt, Karlson & Sorensen Inc. (2003), ABAQUS/standard User's Manual, Version 6.4.1., Pawtucket, RI, USA.
  11. Hu, H.T. and Schnobrich, W.C. (1989), "Constitutive modeling of concrete by using non-associated plasticity", J. Mater. Civ. Eng., 1(4), 199-216. https://doi.org/10.1061/(ASCE)0899-1561(1989)1:4(199)
  12. Hu, H.T., Huang, C.S., Wu, M.H. and Wu, Y.M. (2003) "Nonlinear analysis of axially loaded concrete-filled tube columns with confinement effect", J. Struct. Eng., ASCE, 129(10), 1322-1329. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:10(1322)
  13. Mander, J.B., Priestley, M.J.N. and Park, R. (1988), "Theoretical stress-strain model for confined concrete", J. Struct. Eng., ASCE, 114(8), 1804-1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804)
  14. Nardin, S. and Debs, E.l. (2007), "Shear transfer mechanisms in composite columns: an experimental study", Steel Compos. Struct., Int. J., 7(5), 377-390. https://doi.org/10.12989/scs.2007.7.5.377
  15. Saenz, L.P. (1964), "Discussion of the paper: Equation for the stress-strain curve of concrete (by P. Desayi, and S. Krishnan)", J. Am. Concrete Inst., 61, 1229-1235.
  16. Shanmugam, N.E. and Lakshmi, B. (2001), "State of the art report on steel-concrete composite columns", J. Constr. Steel Res., 57(10), 1041-1080. https://doi.org/10.1016/S0143-974X(01)00021-9
  17. Tao, Z., Uy, B., Han, L.H. and Wang, Z.B. (2009) "Analysis and design of concrete-filled stiffened thin-walled steel tubular columns under axial compression", Thin-Wall. Struct., 47(12), 1544-1556. https://doi.org/10.1016/j.tws.2009.05.006
  18. Uenaka, K., Kitoh, H. and Sonoda, K. (2008), "Concrete filled double skin tubular members subjected to bending", Steel Compos. Struct., Int. J., 8(4), 297-312. https://doi.org/10.12989/scs.2008.8.4.297
  19. Uy, B. (2001), "Strength of short concrete filled high strength steel box columns", J. Constr. Steel Res., 57(1), 113-134. https://doi.org/10.1016/S0143-974X(00)00014-6
  20. Xu, L.H., Du, G.F., Weng, F. and Xu, H.R. (2009), "Experimental study on normal section compression bearing capacity of composite "T" shaped concrete filled steel tubular columns", China Civ. Eng. J., 42(6), 14-21. [in Chinese].

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