DOI QR코드

DOI QR Code

Further analysis on the flexural behavior of concrete-filled round-ended steel tubes

  • Ding, Fa-xing (School of Civil Engineering, Central South University) ;
  • Zhang, Tao (School of Civil Engineering, Central South University) ;
  • Wang, Liping (School of Civil Engineering, Central South University) ;
  • Fu, Lei (School of Civil Engineering, Central South University)
  • 투고 : 2018.03.06
  • 심사 : 2019.01.21
  • 발행 : 2019.01.25

초록

A new form of composite column, concrete-filled round-ended steel tubes (CFRTs), has been proposed as piers or columns in bridges and high-rise building and has great potential to be used in civil engineering. Hence, the objective of this paper presents an experimental and numerical investigation on the flexural behavior of CFRTs through combined experimental results and ABAQUS standard solver. The failure mode was discussed in detail and the specimens all behaved in a very ductile manner. The effect of different parameters, including the steel ratio and aspect ratio, on the flexural behavior of CFRTs was further investigated. Furthermore, the feasibility and accuracy of the numerical method was verified by comparing the FE and experimental results. The moment vs. curvature curves of CFRTs during the loading process were analyzed in detail. The development of the stress and strain distributions in the core concrete and steel tube was investigated based on FE models. The composite action between the core concrete and steel tube was discussed and clarified. In addition, the load transfer mechanism of CFRT under bending was introduced comprehensively. Finally, the predicted ultimate moment according to corresponding designed formula is in good agreement with the experimental results.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

  1. Aslani, F., Uy, B. and Tao, Z. (2015), "Predicting the axial load capacity of high-strength concrete filled steel tubular columns", Steel Compos. Struct., Int. J., 19(4), 967-993. https://doi.org/10.12989/scs.2015.19.4.967
  2. Chang, X., Ru, Z.L., Zhou, W. and Zhang, Y.B. (2013), "Study on concrete-filled stainless steel carbon steel tubular (CFSCT) stub columns under compression", Thin-Wall. Struct., 63(2), 125-133. https://doi.org/10.1016/j.tws.2012.10.002
  3. Chang, X., Luo, X.L., Zhu, C.X. and Tang, C.N. (2014), "Analysis of circular concrete-filled steel tube support in high ground stress conditions", Tunn. Undergr. Sp. Tech., 43(6), 41-48. https://doi.org/10.1016/j.tust.2014.04.002
  4. Chang, X., Wang J., Tang, C. and Ru, Z. (2016), "Effects of interface behavior on fracture spacing in layered rock", Rock Mech. Rock Eng., 49(5), 1733-1746. https://doi.org/10.1007/s00603-015-0852-5
  5. Chen, B.L. and Wang, L.G. (2015), "Experimental study on flexural behavior of splicing concrete-filled gfrp tubular composite members connected with steel bars", Steel Compos. Struct., Int. J., 18(5), 1129-1144. https://doi.org/10.12989/scs.2015.18.5.1129
  6. Chen, J., Wang, J., Xie, F. and Ji, W.L. (2016), "Behavior of thinwalled dodecagonal section double skin concrete-filled steel tubes under bending", Thin-Wall. Struct., 98(1), 293-300. https://doi.org/10.1016/j.tws.2015.10.002
  7. Chitawadagi, M.V. and Narasimhan, M.C. (2009), "Strength deformation behaviour of circular concrete filled steel tubes subjected to pure bending", J. Constr. Steel Res., 65(5), 1836-1845. https://doi.org/10.1016/j.jcsr.2009.04.006
  8. Ding, F.X., Ying, X.Y., Zhou, L.C. and Yu, Z.W. (2011), "Unified calculation method and its application in determining the uniaxial mechanical properties of concrete", Front. Archit. Civil Eng. China., 5(3), 381-393. https://doi.org/10.1007/s11709-011-0118-6
  9. Ding, F.X., Fu, L., Yu, Z.W. and Li, G. (2015), "Mechanical performance of concrete-filled steel tubular stub columns with round ends under axial loading", Thin-Wall. Struct., 97(12), 22-34. https://doi.org/10.1016/j.tws.2015.07.021
  10. Ding, F.X., Fu, L., Liu, X.M. and Liu, J. (2016), "Mechanical performances of track-shaped rebar stiffened concrete-filled steel tubular stub columns under axial compression", Thin-Wall. Struct., 99(2),168-181. https://doi.org/10.1016/j.tws.2015.11.022
  11. Ding, F.X., Zhang, T., Wang, L.P. and Fu, L. (2017), "Behavior of concrete-filled round-ended steel tubes under bending", Steel Compos. Struct., Int. J., 25(4), 457-472.
  12. El-Heweity, M.M. (2012), "On the performance of circular concrete-filled high strength steel columns under axial loading", Alexandria Eng. J., 51(2), 109-119. https://doi.org/10.1016/j.aej.2012.05.006
  13. GB 50017-2003, China Standard (2003), Code for design of steel structures, China Planning Press, Beijing, China.
  14. GB/T228-2002, China Standard (2002), Metallic materials-tensile testing at ambient temperatures, Standards Press of China, Beijing, China.
  15. GB/T50081-2002, China Standard (2002), Standard for method of mechanical properties on ordinary concrete, China Building Industry Press, Beijing, China.
  16. Han, L.H., Lu, H., Yao, G.H. and Liao, F.Y. (2006), "Further study on the flexural behavior of concrete-filled steel tubes", J. Constr. Steel Res., 62(6), 554-565. https://doi.org/10.1016/j.jcsr.2005.09.002
  17. Hassanein, M.F. and Kharoob, O.F. (2014), "Analysis of circular concrete-filled double skin tubular slender columns with external stainless steel tube", Thin-Wall. Struct., 79(6), 23-37. https://doi.org/10.1016/j.tws.2014.01.008
  18. Hassanein, M.F., Kharoob, O.F. and Liang, Q.Q. (2013), "Circular concrete-filled double skin tubular short columns with external stainless steel tubes under axial compression", Thin-Wall. Struct., 73(12), 252-263. https://doi.org/10.1016/j.tws.2013.08.017
  19. Hibbitt, Karlson & Sorensen Inc. (2003), ABAQUS/standard User's Manual, Version 6.4.1., Pawtucket, RI, USA.
  20. Karimi, K., Tait, M.J. and El-Dakhakhni, W. (2012), "Influence of slenderness on the behavior of a FRP-encased steel-concrete composite column", J. Compos. Constr.., 16(1), 100-109. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000235
  21. Kim, J.K., Kwak, H.G. and Kwak, J.H. (2013), "Behavior of Hybrid Double Skin Concrete Filled Circular Steel Tube Columns", Steel Compos. Struct., Int. J., 14(14), 191-204. https://doi.org/10.12989/scs.2013.14.2.191
  22. Liu, J., Ding, F.X., Liu, X.M. and Yu, Z.W. (2016), "Study on flexural capacity of simply supported steel-concrete composite beam", Steel Compos. Struct., Int. J., 21(4), 829-847. https://doi.org/10.12989/scs.2016.21.4.829
  23. Lu, Y.Q. and Kennedy, D.J.L. (1994), "The flexural behaviour of concrete-filled hollow structural sections", Can. J. Civil Eng., 21(1), 111-30. https://doi.org/10.1139/l94-011
  24. Moon, J., Roeder, C.W., Lehman, D.E. and Lee, H.E. (2012), "Analytical modeling of bending of circular concrete filled steel tubes", Eng. Struct., 42(12), 349-361. https://doi.org/10.1016/j.engstruct.2012.04.028
  25. Pagoulatou, M., Sheehan, T., Dai, X.H. and Lam, D. (2014), "Finite element analysis on the capacity of circular concretefilled double-skin steel tubular (CFDST) stub columns", Eng. Struct., 72, 102-112. https://doi.org/10.1016/j.engstruct.2014.04.039
  26. Uenaka, K. and Tsunokake, H. (2016), "Concrete filled elliptical steel tubular members with large diameter-to-thickness ratio subjected to bending", Structures, 5(2) 58-66. https://doi.org/10.1016/j.istruc.2015.08.002
  27. Uenaka, K., Kitoh, H. and Sonoda, K. (2008), "Concrete filled double skin tubular members subjected to bending", Steel Compos. Struct., Int. J., 8(4), 297-312. https://doi.org/10.12989/scs.2008.8.4.297
  28. Wan, C.Y. and Zha, X.X. (2016), "Nonlinear analysis and design ofconcrete-filled dual steel tubular columns under axial loading", Steel Compos. Struct., Int. J., 20(3), 571-597. https://doi.org/10.12989/scs.2016.20.3.571
  29. Wang, Q.T. and Chang, X. (2013), "Analysis of concrete-filled steel tubular columns with "T" shaped cross section (CFTTS)", Steel Compos. Struct., Int. J., 15(1), 41-45. https://doi.org/10.12989/scs.2013.15.1.41
  30. Wang, R.L., Han, H., Nie, J.G. and Zhao, X.L. (2014), "Flexural performance of rectangular CFST members", Thin-Wall. Struct., 79(2), 154-165. https://doi.org/10.1016/j.tws.2014.02.015
  31. Xie, J.X., Cai, C.H., Lu, Z. and Ren, Z.G. (2010), "Test study and numerical simulation of micro-expansive round-ended concrete filled steel tubes coupled column", Eng. J. Wuhan Univ., 43(4) 485-489. [In Chinese]
  32. Xie, J.X., Lu, Z.A., Tang, P. and Liu, D. (2011), "Modal analysis and experimental study on round-ended CFST coupled column cable stayed bridge, Mechanic Automation and Control Engineering (MACE)", Proceedings of the 2nd International Conference on IEEE.
  33. Yuan, W.B. and Yang, J.J. (2013), "Experimental and numerical studies of short concrete-filled double skin composite tube columns under axially compressive loads", J. Constr. Steel Res., 80(1), 23-31. https://doi.org/10.1016/j.jcsr.2012.09.014

피인용 문헌

  1. Fully nonlinear inelastic analysis of rectangular CFST frames with semi-rigid connections vol.38, pp.5, 2021, https://doi.org/10.12989/scs.2021.38.5.497