DOI QR코드

DOI QR Code

A study on bending strength of reinforced concrete filled steel tubular beam

  • Xiamuxi, Alifujiang (College of Architecture and Civil Engineering, Xinjiang University) ;
  • Hasegawa, Akira (Department of Environmental and Civil Engineering, Hachinohe Institute of Technology) ;
  • Tuohuti, Akenjiang (College of Architecture and Civil Engineering, Xinjiang University)
  • 투고 : 2013.11.08
  • 심사 : 2014.02.15
  • 발행 : 2014.06.25

초록

The mechanical characteristic of reinforced concrete filled steel tubular (RCFT) structures are differed from that of concrete filled tubular steel (CFT) structures because the reinforcement in RCFT largely affects the performance of core concrete such as ductility, strength and toughness, and hence the performance of RCFT should be evaluated differently from CFT. To examine the effect axial reinforcement on bending performance, an investigation on RCFT beams with varying levels of axial reinforcement is performed by the means of numerical parametric study. According to the numerical simulation results with 13 different ratios of axial reinforcement, it is concluded that the reinforcement has obvious effect on bending capacity, and the neutral axis of RCFT is different from CFT, and an evaluation equation in which the effect of axial reinforcement is considered for ultimate bending strength of RCFT is proposed.

키워드

참고문헌

  1. ACI Committee 318 (1999), Building Code Requirements for Structural Concrete and Commentary, American Concrete Institute, ACI 318-99, Detroit, MI, USA.
  2. ADINA R&D Inc. (2008), ADINA Theory and Modeling Guide, Report ARD08-7, ADINA R&D Inc., Watertown, New York, NY, USA.
  3. AIJ (2008), Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures, Architectural Institute of Japan, Tokyo, Japan.
  4. 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, NY, USA.
  5. Chen, S.C., Ren, A.Z., Wang, J.F. and Lu, X.Z. (2008), "Numerical modeling of reinforced concrete slabs subjected to fire", Eng. Mech., 25(3), 107-112.
  6. Choi, K.K. and Yan, X. (2010), "Analytical model of circular CFRP confined concrete-filled steel tubular columns under axial compression", J. Compos. Construct., ASCE, 14(1), 125-128. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000056
  7. Endo, T., Shioi, Y., Hasegawa, A. and Wang, H.J. (2000), "Experimental study on reinforced concrete filled steel tubular structure", Proceedings of the 7th International Conference on Steel Structures, Singapore, July.
  8. 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
  9. Hou, C.C., Han, L.H. and Tao, Z. (2011), "Simulation on concrete-filled steel tubular members under transverse impact", The 2011 World Congress on Advances in Structural Engineering and Mechanics ($ASEM'11^{+}$), Seoul, Korea, September.
  10. Hu, H.T., Huang, C.S. and Wu, M.H. (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. JSCE (2007), Standard Specifications for Concrete Structures-2007, Design, Japan Society of Civil Engineers, Tokyo, Japan.
  12. JSCE 9-A (1999), Theory and Design of Steel-concrete Hybrid Structures, Japan Society of Civil Engineers, Tokyo, Japan.
  13. Kupfer, H., Hilsdorf, H.K. and Rush, H. (1969), "Behavior of concrete under biaxial stresses", ACI J., 66(8), 656-666.
  14. Kwak, H.G., Kwak, J.H. and Gang, H.G. (2011), "Cyclic behavior of circular concrete filled steel tubular column", The 2011 World Congress on Advances in Structural Engineering and Mechanics (ASEM'11+), Seoul, Korea, September.
  15. Mao, P.F. and Wang, D.L. (2011), "Nonlinear finite element modeling of the tnterior steel-concrete composite beam joints", Int. J. Nonlinear Sci., 11(2), 173-179.
  16. Patel, V.I., Liang, Q.Q. and Hadi, M.N.S. (2012), "Inelastic stability analysis of high strength rectangular concrete-filled steel tubular slender beam-columns", Interact. Multiscale Mech., Int. J., 5(2), 91-104. https://doi.org/10.12989/imm.2012.5.2.091
  17. Sato, M. (2008), "Study on structural characteristics of RCFT and the application to practical structures", M.S. Dissertation, Hachinohe Institute of Technology, Hachinohe, Japan.
  18. Soranakom, C. and Mobasher, B. (2007), "Flexural modeling of strain softening and strain hardening fiber reinforced concrete", RILEM Proceedings, Pro. 53, S.A.R.L., Cachan, France, July.
  19. Suzuki, T. (2008), "Study on new bridges that adopt hybrid structure", Ph.D. Dissertation, Hachinohe Institute of Technology, Hachinohe, Japan.
  20. Tanigaki, K., Kanai, T. and Komuro, T. (2002), "Construction of high-rise building using reinforced concrete columns formed in steel tube (RCFT) structural system", AIJ J. Tech. Des., 16, 23-26.
  21. Wang, H.J., Ishibashi, H., Wei, H. and Hasegawa, A. (2002), "Experimental study on twin-column RCFT pier", The Second International Conference on Advances in Structural Engineering and Mechanics (ASEM'02), Seoul, Korea, September.
  22. 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., Int. J., 19(6), 653-677. https://doi.org/10.12989/sem.2005.19.6.653
  23. Xiamuxi, A. and Hasegawa, A. (2011), "Experimental study on reinforcement ratio of RCFT columns under axial compression", Adv. Mater. Res., 250-253, 3790-3797. https://doi.org/10.4028/www.scientific.net/AMR.250-253.3790
  24. Xiamuxi, A. and Hasegawa, A. (2012), "A study on axial compressive behaviors of reinforced concrete filled tubular steel columns", J. Construct. Steel Res., 76, 144-154. https://doi.org/10.1016/j.jcsr.2012.03.023
  25. Zeng, Y., Leung, C.C.Y. and Au, F.T.K. (2011), "Finite element analysis of in-situ stitches in precast concrete segmental bridges", The 2011 World Congress on Advances in Structural Engineering and Mechanics ($ASEM'11^{+}$), Seoul, Korea, September.