DOI QR코드

DOI QR Code

Nonlinear analysis of concrete-filled steel composite columns subjected to axial loading

  • 투고 : 2010.10.20
  • 심사 : 2011.04.14
  • 발행 : 2011.08.10

초록

This paper investigates the nonlinear analysis of concrete-filled steel composite columns subjected to axial loading to predict the ultimate load capacity and behaviour of the columns. Finite element software LUSAS is used to conduct the nonlinear analyses. The accuracy of the finite element modelling is verified by comparing the result with the corresponding experimental result reported by other researchers. Nonlinear analyses are done to study and develop different shapes and number of cold-formed steel sheeting stiffeners with various thicknesses of cold-formed steel sheets. Effects of the parameters on the ultimate axial load capacity and ductility of the concrete-filled steel composite columns are examined. Effects of variables such as concrete compressive strength $f_c$ and cold-formed steel sheet yield stress $f_{yp}$ on the ultimate axial load capacity of the columns are also investigated. The results are shown in the form of axial load-normalized axial shortening plots. It is concluded from the study that the ultimate axial load capacity and behaviour of the concrete-filled steel composite columns can be accurately predicted by the proposed finite element modelling. Results in this study demonstrate that the ultimate axial load capacity and ductility of the columns are affected with various thicknesses of steel sheets and different shapes and number of stiffeners. Also, compressive strength $f_c$ of the concrete and yield stress $f_{yp}$ of the cold-formed steel sheet influence the performance of the columns significantly.

키워드

참고문헌

  1. Bradford, M.A., Loh, H.Y. and Uy, B. (2002), "Slenderness limits for filled circular steel tubes", J. Constr. Steel Res., 58, 243-252. https://doi.org/10.1016/S0143-974X(01)00043-8
  2. Brauns, J. (1999), "Analysis of stress state in concrete-filled steel column", J. Constr. Steel Res., 49, 189-196. https://doi.org/10.1016/S0143-974X(98)00217-X
  3. Chitawadagi, M.V., Narasimhan, M.C. and Kulkarni, S.M. (2010), "Axial capacity of rectangular concrete-filled steel tube columns - DOE approach", J. Constr. Build. Mater., 24, 585-595. https://doi.org/10.1016/j.conbuildmat.2009.09.006
  4. Gupta, P.K., Sarda, S.M. and Kumar, M.S. (2007), "Experimental and computational study of concrete filled steel tubular columns under axial loads", J. Constr. Steel Res., 63, 182-193. https://doi.org/10.1016/j.jcsr.2006.04.004
  5. Han, L.H., Liao, F.Y., Tao, Z. and Hong, Z. (2009), "Performance of concrete filled steel tube reinforced concrete columns subjected to cyclic bending", J. Constr. Steel Res., 65, 1607-1616. https://doi.org/10.1016/j.jcsr.2009.03.013
  6. Han, L.H. and Yao, G.H. (2003), "Influence of concrete compaction on the strength of concrete filled steel RHS columns", J. Constr. Steel Res., 59, 751-767. https://doi.org/10.1016/S0143-974X(02)00076-7
  7. Lin, M.L. and Tsai, K.C. (2001), "Behaviour of double-skinned composite steel tubular columns subjected to combined axial and flexural loads", Proceedings of the First International Conference on the Steel & Composite Structures, Pusan, Korea.
  8. Liu, D. (2004), "Behaviour of high strength rectangular concrete-filled steel hollow section columns under eccentric loading", Thin Wall. Struct., 42, 1631-1644. https://doi.org/10.1016/j.tws.2004.06.002
  9. Oliveira, W.L.A., De Nardin, S., El Debs, A.L.H.C. and El Debs, M.K. (2009), "Influence of concrete strength and length/diameter on the axial capacity of CFT columns", J. Constr. Steel Res., 65, 2103-2110. https://doi.org/10.1016/j.jcsr.2009.07.004
  10. Shanmugam, N.E. and Lakshmi, B. (2001), "State of the art report on steel-concrete composite columns", J. Constr. Steel Res., 57, 1041-1080. https://doi.org/10.1016/S0143-974X(01)00021-9
  11. Starossek, U., Falah, N. and Lohning, T. (2010), "Numerical analyses of the force transfer in concrete-filled steel tube columns", Struct. Eng. Mech., 35(2), 241-256. https://doi.org/10.12989/sem.2010.35.2.241
  12. Tao, Z., Han, L.H. and Wang, D.Y. (2007), "Experimental behaviour of concrete-filled stiffened thin-walled steel tubular columns", Thin Wall. Struct., 45, 517-527. https://doi.org/10.1016/j.tws.2007.04.003
  13. Thayalan, P., Aly, T. and Patnaikuni, I. (2009), "Behaviour of concrete-filled steel tubes under static and variable repeated loading", J. Constr. Steel Res., 65, 900-908. https://doi.org/10.1016/j.jcsr.2008.07.023
  14. Tokgoz, S. and Dundar, C. (2010), "Experimental study on steel tubular columns in-filled with plain and steel fibre reinforced concrete", Thin Wall. Struct., 48(6), 414-422. https://doi.org/10.1016/j.tws.2010.01.009
  15. Xu, T., Xiang, T., Zhao, R. and Zhan, Y. (2010), "Nonlinear finite element analysis of circular concrete-filled steel tube structures", Struct. Eng. Mech., 35(3), 315-334. https://doi.org/10.12989/sem.2010.35.3.315
  16. Yu, Q., Tao, Z. and Wu, Y.X. (2008), "Experimental behaviour of high performance concrete-filled steel tubular columns", Thin Wall. Struct., 46, 362-370. https://doi.org/10.1016/j.tws.2007.10.001
  17. Young, B. and Ellobody, E. (2006), "Experimental investigation of concrete-filled cold-formed high strength stainless steel tube columns", J. Constr. Steel Res., 62, 484-492. https://doi.org/10.1016/j.jcsr.2005.08.004
  18. Zhao, X.L. and Grzebieta, R. (2002), "Strength and ductility of concrete filled double skin (SHS inner and SHS outer) tubes", Thin Wall. Struct., 40, 199-213. https://doi.org/10.1016/S0263-8231(01)00060-X

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