Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Numerical analysis of the axially loaded concrete filled steel tube columns with debonding separation at the steel-concrete interface

  • Received : 2011.12.21
  • Accepted : 2012.05.30
  • Published : 2012.09.25
⟨ Previous Next ⟩

Abstract

The interaction between steel tube and concrete core is the key design considerations for concrete-filled steel tube columns. In a concrete-filled steel tube (CFST) column, the steel tube provides confinement to the concrete core which permits the composite action among the steel tube and the concrete. Due to construction faults and plastic shrinkage of concrete, the debonding separation at the steel-concrete interface weakens the confinement effect, and hence affects the behaviour and bearing capacity of the composite member. This study investigates the axial loading behavior of the concrete filled circular steel tube columns with debonding separation. A three-dimensional nonlinear finite element model of CFST composite columns with introduced debonding gap was developed. The results from the finite element analysis captured successfully the experimental behaviours. The calibrated finite element models were then utilized to assess the influence of concrete strength, steel yield stress and the steel-concrete ratio on the debonding behaviour. The findings indicate a likely significant drop in the load carrying capacity with the increase of the size of the debonding gap. A design formula is proposed to reduce the load carrying capacity with the presence of debonding separation.

Keywords

References

  1. American Concrete Institute (ACI), Building code requirements for structural concrete and commentary. ACI Committee 318-11, Michigan, 2011.
  2. American Institute of Steel Construction (AISC), Specification for Structural Steel Buildings (ANSI/AISC 360-10). Illinois, 2010.
  3. Architectural Institute of Japan (AIJ), Recommendations for design and construction of concrete filled steel tubular structures. Tokyo, 1997.
  4. Bahrami, A., Wan Badaruzzaman, W.H. and Osman, S.A. (2011), "Nonlinear analysis of concrete-filled steel composite columns subjected to axial loading", Struct. Eng. Mech., 39(3), 383-398. https://doi.org/10.12989/sem.2011.39.3.383
  5. Choi, K.K. and Xiao, Y. (2010), "Analytical studies of concrete-filled circular steel tubes under axial compression", J. Struct. Eng., 136(5), 565-573. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000156
  6. Ellobody, E., Young, B. and Lam, D. (2006), "Behavior of normal and high strength concrete-filled compact steel tube circular stub columns", J. Constr. Steel Res., 62(6), 706-715. https://doi.org/10.1016/j.jcsr.2005.11.002
  7. Eurocode 4 (EC4). Design of steel and concrete structures-Part1-1:general rules and rules for building. EN 1994-1-1: 2004. Brussels, European Committee for Standardization. 2004.
  8. 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(2), 182-193. https://doi.org/10.1016/j.jcsr.2006.04.004
  9. Hajjar, J.F. (2003), "Concrete-filled steel tube columns under earthquake loads", Progress in Structural Engineering and Materials, 3(2), 72-81.
  10. Han, L.H., Liu, W. and Yang, Y.F. (2008), "Behavior of concrete-filled steel tubular stub columns subjected to axially local compression", J. Constr. Steel Res., 64(4), 377-387. https://doi.org/10.1016/j.jcsr.2007.10.002
  11. 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(6), 751-767. https://doi.org/10.1016/S0143-974X(02)00076-7
  12. Han, L.H. and Li, W. (2011), "New development on concrete filled steel Tubular (CFST) structures in China", Proceedings of the 2011 World Congress on Advances in Structural Engineering and Mechanics (ASEM'11+) Seoul, Korea, September.
  13. Hu, H.T., Huang, C.S., Wu, M.S. and Wu, Y.M. (2003), "Nonlinear analysis of axially loaded concrete-filled tube columns with confinement effect", J. Struct. Eng., 129(10), 1322-1329. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:10(1322)
  14. Liang, K.F. (2008), "Research on the behaviors of concrete-filled steel tube with gaps under load", [D]. PhD thesis of Hunan University, Hunan China.
  15. Liang, Q.Q. and Fragomeni, S. (2010), "Nonlinear analysis of circular concrete-filled steel tubular short columns under eccentric loading", J. Constr. Steel Res., 66(2), 159-169. https://doi.org/10.1016/j.jcsr.2009.09.008
  16. Liu, X.P., Sun, Z., Huang, H.Y., Tang, S. and Tang, C.H. (2011), "Research on mechanical properties of separation concrete-filled steel tubes Subjected to eccentric compression on non-separation side", Appl. Mech. Mater., 117-119, 887-892. https://doi.org/10.4028/www.scientific.net/AMM.117-119.887
  17. Mu, T., Fan, B. and Xie, B. (2007), "Influence of de-fill on performance of concrete-filled steel tubular columns", Proceedings of the 5th International Conference on arch bridges, Madeira, Portugal, September.
  18. Roeder, C.W., Cameron, B. and Brown, C.B. (1999), "Composite action in concrete filled tubes", J. Struct. Eng., 125(5), 477-484. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:5(477)
  19. Schneider, S.P. (1998), "Axially loaded concrete-filled steel tubes", J. Struct. Eng., 124(10), 1125-1138. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:10(1125)
  20. Uy, B. (1998), "Concrete-filled fabricated steel box columns for multistory buildings", Progress in Structural Engineering and Materials, 1(2), 150-158. https://doi.org/10.1002/pse.2260010207
  21. Uwe, S., Nabil, F. and Thomas, L. (2010), "Numerical analyses of the force transfer in Concrete-Filled Steel Tube columns", Struct. Eng. Mech., An Int'l Journal, 35(2), 241-256. https://doi.org/10.12989/sem.2010.35.2.241
  22. Xu, T.F., Xiang, T.Y., Zhao, R.D. and Zhan, Y.L. (2010), "Nonlinear finite element analysis of circular Concrete- Filled Steel Tube structures", Struct. Eng. Mech., An Int'l Journal, 35(3), 315-333. https://doi.org/10.12989/sem.2010.35.3.315
  23. Xue, J.Q., Chen, B.C. and Briseghella, B. (2010), "Experimental research on debonding in concrete-filled steel tubes columns subjected to eccentric loading", IABSE Symposium Report, IABSE Symposium, Venice.
  24. Xue, J.Q., Briseghella, B. and Chen, B.C. (2012), "Effects of debonding on circular CFST stub columns" J. Constr. Steel Res., 69(1), 64-76. https://doi.org/10.1016/j.jcsr.2011.08.002
  25. Yin, X.W. and Lu, X.L. (2010), "Study on push-out test and bond stress-slip relationship of circular concrete filled steel tube" , Steel. Compos. Struct., An Int'l Journal, 10(4), 317-329.
  26. Zhong, S.T. (2006), "Application and research achievement of concrete filled steel tubular (CFST) structures in China", Proceeding of the 8th International Conference on Steel-Concrete Composite and Hybrid Structures, Harbin, China, 12-14 August.

Cited by

  1. Structural response of composite concrete filled plastic tubes in compression vol.21, pp.3, 2016, https://doi.org/10.12989/scs.2016.21.3.589
  2. Influence of shrinkage on compressive behavior of concrete-filled FRP tubes: An experimental study on interface gap effect vol.75, 2015, https://doi.org/10.1016/j.conbuildmat.2014.10.038
  3. Experimental investigation of the flexural behavior of CFST trusses with interfacial imperfection vol.137, 2017, https://doi.org/10.1016/j.jcsr.2017.06.009
  4. Vertical Dynamic Response of a Concrete Filled Steel Tube due to Transient Impact Load: Analytical Solution vol.16, pp.01, 2016, https://doi.org/10.1142/S0219455416400149
  5. Wave propagation in a concrete filled steel tubular column due to transient impact load vol.17, pp.6, 2014, https://doi.org/10.12989/scs.2014.17.6.891
  6. Interface Separation Detection of Concrete-Filled Steel Tube Using a Distributed Temperature Measuring System vol.8, pp.9, 2018, https://doi.org/10.3390/app8091653
  7. Numerical study of internally reinforced circular CFT column-to-foundation connection according to design variables vol.23, pp.4, 2012, https://doi.org/10.12989/scs.2017.23.4.445
  8. Modified DEBA for determining size dependent shear fracture energy of laminates vol.28, pp.1, 2018, https://doi.org/10.12989/scs.2018.28.1.111
  9. AN INVESTIGATION INTO WORKING BEHAVIOR CHARACTERISTICS OF PARABOLIC CFST ARCHES APPLYING STRUCTURAL STRESSING STATE THEORY vol.25, pp.3, 2012, https://doi.org/10.3846/jcem.2019.8102
  10. Stressing State Analysis on a Single Tube CFST Arch Under Spatial Loads vol.9, pp.23, 2019, https://doi.org/10.3390/app9235039
  11. Axial compressive behaviour of concrete-filled steel tubular columns with interfacial damage vol.23, pp.6, 2012, https://doi.org/10.1177/1369433219891639
  12. Experimental and numerical investigation of cross-shaped stub CFSTs under axial compression vol.73, pp.23, 2012, https://doi.org/10.1680/jmacr.19.00505