Steel and Composite Structures

  • 제40권6호
  • /
  • Pages.781-794
  • /
  • 2021
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental study on the axial bearing capacity of built-up cold-formed thin-walled steel multi-limb-section columns

  • Qiao, Wentao (School of Civil Engineering, Shi Jiazhuang Tiedao University) ;
  • Wang, Yuhuan (School of Civil Engineering, Shi Jiazhuang Tiedao University) ;
  • Zhu, Renjie (School of Civil Engineering, Shi Jiazhuang Tiedao University) ;
  • Li, Ruifeng (School of Civil Engineering, Shi Jiazhuang Tiedao University) ;
  • Zhao, Mingshan (Singapore Institute of technology)
  • 투고 : 2020.01.14
  • 심사 : 2021.08.13
  • 발행 : 2021.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

To solve the shortcomings of single-limb or double-limb cold-formed thin-walled steel column easy to buckling failure and low bearing capacity, a new cross-shaped built-up cold-formed thin-walled steel multi-limb-section is proposed for columns. The structure is composed of several single-limb cold-formed thin-walled steel C-channel sections. The flanges and webs are connected by self-drilling screws. In order to assess the mechanical properties of this built-up multi-limb-section column and the influence of the slenderness ratio on the column behavior, the axial loading tests were carried out. Three kinds of single-limb column and built-up multi-limb-section column with different ratio of slenderness were tested. The deformation process, failure mode and bearing capacity were analyzed. The SC specimens failed with local buckling and distorted buckling, while the MC and LC specimens failed with local buckling and global instability. For the built-up multi-limb-section column, the section combination multiple is 12. Compared to the section combination multiple, the bearing capacity combination multiple is much higher. The SQ specimens' combination factor is about 1.1, the combination factor of MQ specimens and LQ specimens are about 1.4 and 3.0, respectively. It is concluded that the overall combined-performance and structural efficiency of the specimens is proportional to the combination factor.

키워드

과제정보

This research was funded by Science and Technology Research Key Project in Higher Institutions of Hebei Province (ZD2018250) and Top Youth Talent Funding of Hebei Province.

참고문헌

  1. Abbasi, M., Khezri, M., Rasmussen, K.J.R. and Schafer,B.W. (2018), "Elastic buckling analysis of cold-formed steel built-up sections with discrete fasteners using the compound strip method", Thin-Wall. Struct., 124(3), 58-71. https://doi.org/10.1016/j.tws.2017.11.046.
  2. AISI S100-2016 (2016), American Iron and Steel Institute. North American Specifications for the Design of Cold-Formed Steel Structural Members, American Iron and Steel Institute; Washington, D.C.
  3. Ananthi, G.B.G., Deepak, M.S., Roy, K. and Lim, J.B.P. (2021), "Influence of intermediate stiffeners on the axial capacity of cold-formed steel back-to-back built-up unequal angle sections", Structures, 32(8), 827-848. https://doi.org/10.1016/j.istruc.2021.03.059.
  4. Ananthi, G.B.G., Roy, K., Ahmed, A.M.M. and Lim, J.B.P. (2021), "Non-linear behaviour and design of web stiffened battened built-up stainless steel channel sections under axial compression", Structures, 30(4), 477-494. https://doi.org/10.1016/j.istruc.2021.01.014.
  5. AS/NZS 4600 (2005), Cold-formed steel structures, Australian and New Zealand standards; Sydney.
  6. Chen, B., Roy, K., Uzzaman, A., Raftery, G. and Lim, J.B.P. (2020), "Axial strength of back-to-back cold-formed steel channels with edge-stiffened holes, un-stiffened holes, and plain webs", J. Constr. Steel Res., 174(11), 106313. https://doi.org/10.1016/j.jcsr.2020.106313.
  7. Dar, M.A., Sahoo, D.R., Pulikkal, S. and Jain, A.K. (2018), "Behaviour of laced built-up cold-formed steel columns: Experimental investigation and numerical validation", Thin-Wall. Struct., 132(11), 398-409. https://doi.org/10.1016/j.tws.2018.09.012.
  8. Fratamico, D.C., Torabian, S., Zhao, X., Rasmussen, K.J.R. and Schafer, B.W. (2018), "Experimental study on the composite action in sheathed and bare built-up cold-formed steel columns", Thin-Wall. Struct., 127(6), 290-305. https://doi.org/10.1016/j.tws.2018.02.002.
  9. GB 50018-2002 (2002), Technical code of cold-formed thin-wall steel structures, China planning press; Beijing, China.
  10. Georgieva, I., Schueremans, I. and Pyl, L. (2012), "Composed columns from cold-formed steel Z-profiles: Experiments and code-based predictions of the overall compression capacity", Eng. Struct., 37(4), 125-134. https://doi.org/10.1016/j.engstruct.2011.12.017.
  11. Georgieva, I., Schueremans, L., Vandewalle, L. and Pyl, L. (2012), "Design of built-up cold-formed steel columns according to the direct strength method", Procedia Eng., 40, 119-124. https://doi.org/10.1016/j.proeng.2012.07.066.
  12. Kyvelou, P., Kyprianou, C., Gardner, L. and Nethercot, D.A. (2019), "Challenges and solutions associated with the simulation and design of cold-formed steel structural systems", Thin-Wall. Struct., 141(8), 526-539. https://doi.org/10.1016/j.tws.2019.04.030.
  13. Li (2015), "Research on Axially Compressed Behavior of Quadruple-Limbs Double Box Section Built-up Cold-formed Steel Columns", Master Dissertation, Chang'an University, Xi'an, China.
  14. Li, G.W. and Li, Y.Q. (2018), "Overall stability behavior of axially compressed cold-formed thick-walled steel tubes", Thin-Wall. Struct., 125(4), 234-244. https://doi.org/10.1016/j.tws.2018.01.032.
  15. Li, Y.L., Li, Y.Q. and Shen, ZY. (2016), "Investigation on flexural strength of cold-formed thin-walled steel beams with built-up box section", Thin-Wall. Struct., 107(10), 66-79. https://doi.org/10.1016/j.tws.2016.05.026.
  16. Liao, F., Wu, H., Wang, B. and Zhou, T. (2017), "Compression test and analysis of multi-limbs built-up cold-formed steel stub columns", J. Constr. Steel Res., 128(1), 405-415. https://doi.org/10.1016/j.jcsr.2016.09.005.
  17. Liu, D., Liu, H., Chen, Z. and Liao, X. (2017), "Structural behavior of extreme thick-walled cold-formed square steel columns", J. Constr. Steel Res., 128(1), 371-379. https://doi.org/10.1016/j.jcsr.2016.09.004.
  18. Liu, Z., Liu, H., Chen, Z. and Zhang, G. (2018), "Structural behavior of cold-formed thick-walled rectangular steel columns", J. Constr. Steel Res., 147(8), 277-292. https://doi.org/10.1016/j.jcsr.2018.03.013.
  19. Roy, K. and Lim, J.B.P. (2019), "Numerical investigation into the buckling behaviour of face-to-face built-up cold-formed stainless steel channel sections under axial compression", Structures, 20(8) 42-73. https://doi.org/10.1016/j.istruc.2019.02.019.
  20. Roy, K., Chen, B., Fang, Z., Uzzaman, A., Chen, X. and Lim, J.B.P. (2021), "Local and distortional buckling behaviour of back-to-back built-up aluminium alloy channel section columns", Thin-Wall. Struct., 163(6), 107713. https://doi.org/10.1016/j.tws.2021.107713.
  21. Roy, K., Lau, H.H., Ahmed, A.M.M. and Lim, J.B.P. (2021), "Nonlinear behavior of cold-formed stainless steel built-up box sections under axial compression", Structures, 30(4), 390-408. https://doi.org/10.1016/j.istruc.2020.12.058.
  22. Roy, K., Lau, H.H., Ting, T.C.H., Chen, B. and Lim, J.B.P. (2020), "Flexural capacity of gapped built-up cold-formed steel channel sections including web stiffeners", J. Constr.Steel Res., 172(9), 106154. https://doi.org/10.1016/j.jcsr.2020.106154.
  23. Roy, K., Lau, H.H., Ting, T.C.H., Chen, B. and Lim, J.B.P. (2021), "Flexural behaviour of back-to-back built-up cold-formed steel channel beams: Experiments and finite element modelling", Structures, 29(2), 235-253. https://doi.org/10.1016/j.istruc.2020.10.052.
  24. Roy, K., Mohammadjani, C. and Lim, J.B.P. (2019), "Experimental and numerical investigation into the behaviour of face-to-face built-up cold-formed steel channel sections under compression", Thin-Wall. Struct., 134(1), 291-309. https://doi.org/10.1016/j.tws.2018.09.045.
  25. Roy, K., Ting, T.C.H., Lau, H.H. and Lim, J.B.P. (2018), "Effect of thickness on the behaviour of axially loaded back-to-back cold-formed steel built-up channel sections-Experimental and numerical investigation", Structures, 16(11), 327-346. https://doi.org/10.1016/j.istruc.2018.09.009.
  26. Roy, K., Ting, T.C.H., Lau, H.H. and Lim, J.B.P. (2018), "Nonlinear behavior of axially loaded back-to-back built-up cold-formed steel un-lipped channel sections", Steel Compos. Struct., 28(2), 233-250. https://doi.org/10.12989/scs.2018.28.2.233.
  27. Roy, K., Ting, T.C.H., Lau, H.H. and Lim, J.B.P. (2018), "Nonlinear behaviour of back-to-back gapped built-up cold-formed steel channel sections under compression", J. Constr. Steel Res., 147(8), 257-276. https://doi.org/10.1016/j.jcsr.2018.04.007.
  28. Roy, K., Ting, T.C.H., Lau, H.H. and Lim, J.B.P. (2019), "Experimental and numerical investigations on the axial capacity of cold-formed steel built-up box sections", J. Constr. Steel Res., 160(9), 411-427. https://doi.org/10.1016/j.jcsr.2019.05.038.
  29. Stone, T.A. and LaBoube, R.A. (2005), "Behavior of cold-formed steel built-up I-sections", Thin-Wall. Struct., 43(12), 1805-1817. https://doi.org/10.1016/j.tws.2005.09.001.
  30. Sun (2017), "Experimental and Theoretical Research on Compressed Behavior of Quadruple-Limbs Open Section Cold-formed C Steel Built-up Columns", Master Dissertation, Chang'an University, Xi'an, China.
  31. Ting, T.C.H., Roy, K., Lau, H.H. and Lim, J.B.P. (2018), "Effect of screw spacing on behavior of axially loaded back-to-back cold-formed steel built-up channel sections", Adv. Struct. Eng., 21(3), 474-487. https://doi.org/10.1177/1369433217719986.
  32. Uzzaman, A., Lim, J.B.P., Nash, D. and Roy, K. (2020), "Cold-formed steel channel sections under end-two-flange loading condition: Design for edge-stiffened holes, unstiffened holes and plain webs", Thin-Wall. Struct., 147(2), 106532. https://doi.org/10.1016/j.tws.2019.106532.
  33. Wang (2016), "Research on the Compression Behavior of Sextuple-Limbs Section Built-up Cold-formed Steel Columns", Master Dissertation, Chang'an University, Xi'an, China.
  34. Whittle, J. and Ramseyer, C. (2009), "Buckling capacities of axially loaded, cold-formed, built-up C-channels", Thin-Wall. Struct., 47(2), 190-201. https://doi.org/10.1016/j.tws.2008.05.014.
  35. Yao, C., Muchun, N. and Lu, Y. (2017), "Axial compression Test on Cold-Formed Thin-walled Steel Built-up Section Columns", Progress in Steel Building Structures (Chinese), 19(6), 35-42. https://doi.org/10.13969/j.cnki.cn31-1893.2017.06.005.
  36. Young, B. and Chen, J. (2008), "Design of cold-formed steel built-up closed sections with intermediate stiffeners", J. Struct. Eng., 134(5), 727-737. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:5(727).
  37. Young, B. and Zhang, J.H. (2018), "Finite element analysis and design of cold-formed steel built-up closed section columns with web stiffeners", Thin-Wall. Struct., 131(10), 223-237. https://doi.org/10.1016/j.tws.2018.06.008.