Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

The 3D-numerical simulation on failure process of concrete-filled tubular (CFT) stub columns under uniaxial compression

  • Zhu, W.C. (School of Resource and Civil Engineering, Northeastern University) ;
  • Ling, L. (School of Resource and Civil Engineering, Northeastern University) ;
  • Tang, C.A. (School of Civil and Hydraulic Engineering, Dalian University of Technology) ;
  • Kang, Y.M. (School of Resource and Civil Engineering, Northeastern University) ;
  • Xie, L.M. (School of Resource and Civil Engineering, Northeastern University)
  • Received : 2010.06.10
  • Accepted : 2011.06.22
  • Published : 2012.04.25
⟨ Previous Next ⟩

Abstract

Based on the heterogeneous characterization of concrete at mesoscopic level, Realistic Failure Process Analysis ($RFPA^{3D}$) code is used to simulate the failure process of concrete-filled tubular (CFT) stub columns. The results obtained from the numerical simulations are firstly verified against the existing experimental results. An extensive parametric study is conducted to investigate the effects of different concrete strength on the behaviour and load-bearing capacity of the CFT stub columns. The strength of concrete considered in this study ranges from 30 to 110 MPa. Both the load-bearing capacity and load-displacement curves of CFT columns are evaluated. In particular, the crack propagation during the deformation and failure processes of the columns is predicted and the associated mechanisms related to the increased load-bearing capacity of the columns are clarified. The numerical results indicate that there are two mechanisms controlling the failure of the CFT columns. For the CFT columns with the lower concrete strength, they damage when the steel tube yields at first. By contrast, for the columns with high concrete strength it is the damage of concrete that controls the overall loading capacity of the CFT columns. The simulation results also demonstrate that $RFPA^{3D}$ is not only a useful and effective tool to simulate the concrete-filled steel tubular columns, but also a valuable reference for the practice of engineering design.

Keywords

References

  1. Berthelot, J. and Rovert, J. (1987), "Modeling concrete damage by acous. emission", J. Acous. Emission, 6, 43-60.
  2. 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), 706-715. https://doi.org/10.1016/j.jcsr.2005.11.002
  3. Giakoumelis, G. and Lam, D. (2004), "Axial capacity of circular concrete-filled tube columns", J. Constr. Steel Res., 60(7), 1049-1068. https://doi.org/10.1016/j.jcsr.2003.10.001
  4. 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
  5. Hoxha, D. and Homand, F. (2000), "Microstructural approach in damage modelling", Mech. Mater., 32(6), 377-387. https://doi.org/10.1016/S0167-6636(00)00006-5
  6. Hu, H.T., Huang, C.H., 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)
  7. Huang, Y.S., Long, Y.L. and Cai, J. (2008), "Ultimate strength of rectangular concrete-filled steel tubular (CFT) stub columns under axial compression", Steel Compos. Struct., 8(2), 115-128. https://doi.org/10.12989/scs.2008.8.2.115
  8. Liang, Q.Q. (2011), "High strength circular concrete-filled steel tubular slender beam-columns, Part I: Numerical analysis", J. Constr. Steel Res., 67(2), 164-171. https://doi.org/10.1016/j.jcsr.2010.08.006
  9. Liang, Z.Z., Tang, C.A., Zhang, Y.B., Ma, T.H. and Zhang, Y.F. (2006), "3D numerical simulation of failure process of rock (in Chinese)", Chinese J. Rock Mech. Eng., 25(5), 931-936.
  10. Liu, D., Gho, W.M. and Yuan, J. (2003), "Ultimate capacity of high-strength rectangular concrete-filled steel hollow section stub columns", J. Constr. Steel Res., 59(12), 1499-1515. https://doi.org/10.1016/S0143-974X(03)00106-8
  11. Meglis, I.L., Chow, T.M. and Young, R.P. (1995), "Progressive microcrack development in test on Lac du Bonnet: I. Emission Source location and velocity measurements", Int. J. Rock Mech. Min., 32(8), 741-750. https://doi.org/10.1016/0148-9062(95)00014-8
  12. Sakino, K., Nakahara, H., Morino, S. and Nishiyama, I. (2004), "Behavior of centrally loaded concrete-filled steel-tube short columns", J. Struct. Eng.-ASCE, 130(2), 180-188. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(180)
  13. Schneider, S.P. (1998), "Axially loaded concrete-filled tubes", J. Struct. Eng.-ASCE, 124(10), 1125-1138. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:10(1125)
  14. 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
  15. Tang, C.A. (1997), "Numerical simulation on progressive failure leading to collapse and associated seismicity", Int. J. Rock Mech. Min., 34(2), 249-261. https://doi.org/10.1016/S0148-9062(96)00039-3
  16. Uy, B. (1998), "Local and post-local buckling of concrete-filled steel welded box columns", J. Constr. Steel Res., 47(1-2), 47-72. https://doi.org/10.1016/S0143-974X(98)80102-8
  17. Uy, B. (2001), "Strength of short concrete-filled high strength steel box columns", J. Constr. Steel Res., 57(2), 113-134. https://doi.org/10.1016/S0143-974X(00)00014-6
  18. Yang, Y.F. and Han, L.H. (2006), "Compressive and flexural behaviour of recycled aggregate concrete filled steel tubes (RACFST) under short-term loadings", Steel Compos. Struct., 6(3), 257-284. https://doi.org/10.12989/scs.2006.6.3.257
  19. Zhang, S. and Wang, Y. (2004), "Failure modes of short columns of high-strength concrete-filled steel tubes (in Chinese)", J. Civil Eng., 37(9), 1-10.
  20. Zhu, W.C. and Tang, C.A. (2002), "Numerical simulation on shear fracture process of concrete using mesoscopic mechanical model", Constr. Build. Mater., 16(8), 453-463. https://doi.org/10.1016/S0950-0618(02)00096-X
  21. Zhu, W.C. and Tang, C.A. (2004), "Micromechanical model for simulating the fracture process of rock", Rock Mech. Rock Eng., 37(1), 25-56. https://doi.org/10.1007/s00603-003-0014-z
  22. Zhu, W.C., Teng, J.G. and Tang, C.A. (2004), "Mesomechanical model for concrete-part I: model development", Mag. Concrete Res., 56(6), 313-330. https://doi.org/10.1680/macr.2004.56.6.313

Cited by

  1. Study on fracture behavior of polypropylene fiber reinforced concrete with bending beam test and digital speckle method vol.14, pp.5, 2014, https://doi.org/10.12989/cac.2014.14.5.527
  2. The structural performance of axially loaded CFST columns under various loading conditions vol.13, pp.5, 2012, https://doi.org/10.12989/scs.2012.13.5.451
  3. GS-MARS method for predicting the ultimate load-carrying capacity of rectangular CFST columns under eccentric loading vol.25, pp.1, 2012, https://doi.org/10.12989/cac.2020.25.1.001
  4. Effect of axial loading conditions and confinement type on concrete-steel composite behavior vol.25, pp.2, 2012, https://doi.org/10.12989/cac.2020.25.2.095
  5. Analytical post-heating behavior of concrete-filled steel tubular columns containing tire rubber vol.26, pp.6, 2012, https://doi.org/10.12989/cac.2020.26.6.467