Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Axial load behavior and stability strength of circular tubed steel reinforced concrete (SRC) columns

  • Yan, Biao (Department of Engineering Mechanics, School of Civil Engineering and Mechanics, Lanzhou University) ;
  • Liu, Jiepeng (Department of Civil Engineering, School of Civil Engineering, Chongqing University) ;
  • Zhou, Xuhong (Department of Civil Engineering, School of Civil Engineering, Chongqing University)
  • Received : 2017.02.24
  • Accepted : 2017.09.14
  • Published : 2017.12.10
⟨ Previous Next ⟩

Abstract

The tubed steel reinforced concrete (SRC) column is a composite column in which the outer steel tube is mainly used to provide confinement on the core concrete. This paper presents experimental and analytical studies on the behavior of circular tubed SRC (TSRC) columns subjected to axial compression. Eight circular TSRC columns were tested to investigate the effects of length-to-diameter ratio (L/D) of the specimens, diameter-to-thickness ratio (D/t) of the steel tubes, and use of stud shear connectors on the steel sections. Elastic-plastic analysis on the steel tubes was used to investigate the mechanism of confinement on the core concrete. The test results indicated that the tube confinement increased the strength and deformation capacity for both short and slender columns, and the effects on strength were more pronounced for short columns. A nonlinear finite element (FE) model was developed using ABAQUS, in which the nonlinear material behavior and initial geometric imperfection were included. Good agreement was achieved between the predicted results using the FE model and the test results. The test and FE results were compared with the predicted strengths calculated by Eurocode 4 and the AISC Standard. Based on the analytical results, a new design method for this composite column was proposed.

Keywords

Acknowledgement

Supported by : National Natural Science Foundations of China

References

  1. ABAQUS (version 6.12), Dassault Systèmes SIMULIA, Providence, RI.
  2. ACI 318 (2014), Building code requirements for structural concrete and commentary, American Concrete Institute; Farmington Hills, MI, USA.
  3. AISC 360 (2016), Specification for structural steel buildings, American Institute of Steel Construction; Chicago, Illinois, USA.
  4. Chang, X., Wei, Y.Y. and Yun, Y.C. (2012), "Analysis of steel-reinforced concrete-filled-steel tubular (SRCFST) columns under cyclic loading", Constr. Bulid. Mater., 28, 88-95. https://doi.org/10.1016/j.conbuildmat.2011.08.033
  5. Chen, Z., Xu, J., Chen, Y. and Xue, J. (2016), "Axial compression ratio limit values for steel reinforced concrete (SRC) special shaped columns", Steel Compos. Struct., 20(2), 295-316. https://doi.org/10.12989/scs.2016.20.2.295
  6. Choi, E.G., Kim, H.S. and Shin, Y.S. (2012), "Performance of fire damaged steel reinforced high strength concrete (SRHSC) columns", Steel Compos. Struct., 13(6), 521-537. https://doi.org/10.12989/scs.2012.13.6.521
  7. El-Tawil, S. and Deierlein, G.G. (1999), "Strength and ductility of concrete encased composite columns", J. Struct. Eng., 125(9), 1009-1019. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:9(1009)
  8. Ellobody, E. (2013), "Numerical modelling of fibre reinforced concrete-filled stainless steel tubular columns", Thin Wall. Struc., 63, 1-12. https://doi.org/10.1016/j.tws.2012.10.005
  9. Ellobody, E. and Young, B. (2011), "Numerical simulation of concrete encased steel composite columns", J. Constr. Steel. Res., 67(2), 211-222. https://doi.org/10.1016/j.jcsr.2010.08.003
  10. Eurocode 4 (2004), Design of composite steel and concrete structures. Part 1.1: General rules and rules for buildings, European Committee for Standardization; Brussels, Belgium.
  11. Gan, D., Guo, L.H., Liu, J.P. and Zhou, X.H. (2011), "Seismic behavior and moment strength of tubed steel reinforced-concrete (SRC) beam-columns", J. Constr. Steel. Res., 67(10), 1516-1524. https://doi.org/10.1016/j.jcsr.2011.03.025
  12. Gardner, N.J. and Jacobson, E.R. (1967), "Structural behavior of concrete filled steel tubes", ACI J. Proc., 64(7), 404-413.
  13. GB50017 (2003), Code for design of steel structures, Ministry of Housing and Urban-Rural Development of China; Beijing, China. (in Chinese)
  14. Han, L.H., Yao, G.H. and Tao, Z. (2007), "Performance of concrete-filled thin-walled steel tubes under pure torsion", Thin Wall. Struct., 45(1), 24-36. https://doi.org/10.1016/j.tws.2007.01.008
  15. Han, L.H., Zhao, X.L. and Tao, Z. (2001), "Tests and mechanics model for concrete-filled SHS stub columns, columns and beam-columns", Steel Compos. Struct., 1(1), 51-74. https://doi.org/10.12989/scs.2001.1.1.051
  16. Ky, V.S., Tangaramvong, S. and Thepchatri, T. (2015), "Inelastic analysis for the post-collapse behavior of concrete encased steel composite columns under axial compression", Steel Compos. Struct., 19(5), 1237-1258. https://doi.org/10.12989/scs.2015.19.5.1237
  17. Liu, J.P., Wang, X.D., Qi, H.T., et al. (2015), "Behavior and Strength of Circular Tubed Steel-Reinforced-Concrete Short Columns under Eccentric Loading", Adv. Struct. Eng., 18(10), 1587-1595. https://doi.org/10.1260/1369-4332.18.10.1587
  18. Lubliner, J., Oliver, J., Oller, S. and Oñate, E. (1989), "A plastic-damage model for concrete", Int. J. Solids Struct., 25(3), 299-326. https://doi.org/10.1016/0020-7683(89)90050-4
  19. Massone, L.M., Sayre, B.L. and Wallace, J.W. (2017), "Load-Deformation responses of slender structural steel reinforced concrete walls", Eng. Struct., 140, 77-88. https://doi.org/10.1016/j.engstruct.2017.02.050
  20. Tomii, M., Sakino, K., Xiao, Y. and Watanabe, K. (1985), "Earthquake resisting hysteretic behavior of reinforced concrete short columns confined by steel tube", Proceedings of the International Speciality Conference on Concrete Filled Steel Tubular Structures, Harbin, China, August.
  21. Wang, Q.W., Shi, Q.X. and Tian H.H. (2015), "Seismic behavior of steel reinforced concrete (SRC) joints with new-type section steel under cyclic loading", Steel Compos. Struct., 19(6) , 1561-1580. https://doi.org/10.12989/scs.2015.19.6.1561
  22. Wang, X.D., Liu, J.P. and Zhou, X.H. (2016), "Behaviour and design method of short square tubed-steel-reinforced-concrete columns under eccentric loading", J. Constr. Steel. Res., 116, 193-203. https://doi.org/10.1016/j.jcsr.2015.09.018
  23. Zhou, X.H. and Liu, J.P. (2010), Performance and Design of Steel Tube Confined Concrete. Science Press, Beijing, China. (in Chinese)

Cited by

  1. Behaviors of RPC-filled double skin steel tubular stub columns under axial compression loading vol.40, pp.6, 2021, https://doi.org/10.12989/scs.2021.40.6.839