Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Load-sharing ratio analysis of reinforced concrete filled tubular steel columns

  • Xiamuxi, Alifujiang (Department of Environmental and Civil Engineering, Hachinohe Institute of Technology) ;
  • Hasegawa, Akira (Department of Environmental and Civil Engineering, Hachinohe Institute of Technology)
  • Received : 2011.10.24
  • Accepted : 2012.04.01
  • Published : 2012.06.25
⟨ Previous Next ⟩

Abstract

It was clear from the former researches on reinforced concrete filled tubular steel (RCFT) structures that RCFT structures have different performance than concrete filled steel tubular (CFT) structures. However, despite of that, load-sharing ratio of RCFT is evaluating by the formula and range of CFT given by JSCE. Therefore, the aim of this investigation is to study the load-sharing ratio of RCFT columns subjected to axial compressive load by performing numerical simulations of RCFT columns with the nonlinear finite element analysis (FEA) program - ADINA. To achieve this goal, firstly proper material constitutive models for concrete, steel tube and reinforcement are proposed. Then axial compression tests of concrete, RC, CFT, and RCFT columns are carried out to verify proposed material constitutive models. Finally, by the plenty of numerical analysis with small-sized and big-sized columns, load-sharing ratio of RCFT columns was studied, the evaluation formulas and range were proposed, application of the formula was demonstrated, and following conclusions were drawn: The FEA model introduced in this paper can be applied to nonlinear analysis of RCFT columns with reliable results; the load-sharing ratio evaluation formula and range of CFT should not be applied to RCFT; The lower limit for the range of load-sharing ratio of RCFT can be smaller than that of CFT; the proposed formulas for load-sharing ratio of RCFT have practical mean in design of RCFT columns.

Keywords

References

  1. ACI (1999), "Building code requirements for structural concrete and commentary", American Concrete Institute, ACI 318-99, Detroit.
  2. ASCE (1982), "ASCE task committee on concrete and masonry structure, state of the art report on finite element analysis of reinforced concrete", ASCE, New York.
  3. ADINA R&D Inc. (2008), "ADINA theory and modeling guide", Report ARD08-7, February.
  4. Choi, K.K. and Yan, X. (2010). "Analytical model of circular CFRP confined concrete-filled steel tubular columns under axial compression", J. Compos. Constr., ASCE, 14(1), 125-133. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000056
  5. Dong, H.J. (2009), "Nonlinear analysis of the reinforced concrete member", MS thesis, Dalian University of Technology, Dalian China.
  6. Endo, K. and Unjo, S. (2005), "Analytical study on strength and ductility of long-span suspension bridge tower using concrete-filled steel tube", J. Earthq. Eng., JSCE, 28(31), 411-416.
  7. Endo, T., Shioi, Y., Hasegawa, A. and Wang, H.J. (2000), "Experimental study on reinforced concrete filled steel tubular structure", Proc. 7th Int. Conf. on Steel Structures, Singapore.
  8. Fan, X. and Zhou, G.Zh. (1998), "Experimental measure and computation about strain hardening modulus", Journal of Tianjin Institute of Technology, 14(1), 1-4.
  9. Han, J.S., Xu, Z.D., Cong, S.P. et al. (2010), "Analysis of axial compressive performance for reinforced concrete filled tubular steel", Arch. Environ. Eng., 31(3), 11-17.
  10. 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)
  11. Huang, C. S., et al. (2002), "Axial load behavior of stiffened concrete filled steel columns", J. Struct. Eng., ASCE, 128(9), 1222-1230. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1222)
  12. Jiang, X.M. (2007), "Study on mechanical performance and temperature field of concrete filled steel tubular short columns under axial compression", MS thesis, Shandong University, Jinan China.
  13. Jing, L.H., Xia, Z.F. and Hong, Sh.T. (2004), "Constitutive relations for concrete and its application", Struct. Eng., 20(6), 20-24.
  14. JSCE (2008), "Standard specifications for steel and composite structures - 2008 (IV seismic design)", Japanese Society of Civil Engineers, Tokyo Japan.
  15. JSCE (2007), "Standard specifications for concrete structures - 2007 (design)", Japanese Society of Civil Engineers, Tokyo Japan.
  16. JSCE (1999), "Reality state and analysis of steel construction damaged by Hansin-Awaji Earthquake", Japanese Society of Civil Engineers, Tokyo Japan.
  17. JSCE (1999), "Theory and design of steel-concrete hybrid structures part1: Theory and basic concept", Japanese Society of Civil Engineers, Tokyo Japan.
  18. Lakshmi, B. and Shanmugam, N.E. (2002). "Nonlinear analysis of in-filled steel-concrete composite columns", J. Struct. Eng., ASCE, 128(7), 922-933 https://doi.org/10.1061/(ASCE)0733-9445(2002)128:7(922)
  19. Miao,W. (2010), "Experimental research and bearing capacity analysis of axially compressive reinforced concrete filled steel tube short column", Shanxi Architecture, 36(5), 79-81.
  20. 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)
  21. Metin, H. and Selim, P. (2007), "Investigation of stress-strain models for confined high strength concrete", Sadhana, 32(3), 243-252. https://doi.org/10.1007/s12046-007-0021-y
  22. Nishida, H. and Unjo, S. (2007), "Engineering discussions on allowable ductility factor of RC piers based on specifications for highway bridges of Japan", Proc. 10th Symposium on Seismic Design of Bridges and Structures Based on the Ultimate Earthquake Resistance Method, Tokyo Japan.
  23. Richart, F.E., Brandtzaeg, A., and Brown, R.L. (1928), "A study of the failure of concrete under combined compressive stresses", Bull. 185, Univ. of Illinois Engineering Experimental Station, Champaign, Ill.
  24. Sato, M. (2008), "Study on structural characteristics of RCFT and the application to practical structures", MS thesis, Hachinohe Institute of Technology, Hachinohe Japan.
  25. Shioi, Y. (1998), "Study on arrangement of reinforcements to improve shearing capacity and ductility of piers", Report of study of science research subsidy , Tokyo Japan.
  26. Su, X.D. (2007), "Nonlinear computer simulation for the reinforced concrete structure", MS thesis, Southwest Jiaotong University, Chengdu China.
  27. Suzuki, T. (2008), "Study on new bridges that adopt hybrid structure", PhD thesis, Hachinohe Institute of Technology, Hachinohe Japan.
  28. Tadahiko, I. and Mokoto K. (2001), "Discussion of columns and beams using nonlinear analysis", Prestressed Concrete, 40(2), 77-83.
  29. Wang, H.J., Ishibashi, H., Wei, H. and Hasegawa, A. (2002), "Experimental study on twin-column RCFT pier", the Second Int. Conf. on Advances in Structural Engineering and Mechanics(ASEM'02), Busan(Pusan) Korea.
  30. Wei, H., Iwasaki, S., Hasegawa, A., Shioi, Y. and Miyamoto, Y. (2002), "Experimental study on mechanical characteristics of reinforced concrete filled circular steel tubular structures", J. Constr. Steel, JSSC, 10, 519- 526.
  31. Wei, H., Wang, H.J., Hasegawa, A. and Shioi, Y. (2005), "Study on strength of reinforced concrete filled circular steel tubular columns", Struct. Eng. Mech., 19(6), 653-677. https://doi.org/10.12989/sem.2005.19.6.653
  32. Wu, M.H. (2000), "Numerical analysis of concrete filled steel tubes subjected to axial force". MS thesis, Department of Civil Engineering, National Cheng Kung University, Tainan Taiwan R.O.C.
  33. Xiao, C.Z., Cai, S.H. and Xu, C.L. (2005), "Experimental study on shear resistance performance of concrete filled steel tube columns", China Civil Engineering Journal, 12(4), 10-16.
  34. Xu,Y. (2000), "Study on mechanical performance of rectangular concrete filled steel tubes structures", PhD thesis, Tungchi University, Shanghai China.
  35. Xu, Y.F., Zhao, J.Y., Liu, N. et al. (2009), "The ductility analysis of circular steel tube compile column filled with steel reinforced concrete on cyclic loading", Journal of Shenyang Jianzhu University, 10(9), 83-87.
  36. Yao, G.H., Huang, Y.J., Song, B.D. et al. (2008), "Research on behavior of the inner joint of concrete filled steel tube column-RC ring beam", Steel Constr., 9(6), 27-30.
  37. Zhao, D.Z. (2003), "Study on the mechanical properties of steel tubular columns filled with steel-reinforced high-strength concrete", PhD thesis, Dalian University of Technology, Dalian China.
  38. Zhang, X.D. and Du D.N. (2006), "Application of ADINA in nonlinear analysis of reinforced concrete structure", Science Technology and Engineering, 14(5), 78-81.

Cited by

  1. 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