Steel and Composite Structures

  • 제25권6호
  • /
  • Pages.671-684
  • /
  • 2017
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Simplified method for prediction of elastic-plastic buckling strength of web-post panels in castellated steel beams

  • Liu, Mei (School of Civil Engineering, Shandong University) ;
  • Guo, Kangrui (School of Civil Engineering, Shandong University) ;
  • Wang, Peijun (School of Civil Engineering, Shandong University) ;
  • Lou, Chao (School of Civil Engineering, Shandong University) ;
  • Zhang, Yue (Shanghai Construction No. 1 (Group) Co. LTD)
  • 투고 : 2017.04.22
  • 심사 : 2017.09.02
  • 발행 : 2017.12.30
⟨ 이전 논문 다음 논문 ⟩

초록

Elastic-plastic shear buckling behaviors of the web-post in a Castellated Steel Beam (CSB) with hexagonal web openings under vertical shear force were investigated further using Finite Element Model (FEM) based on a sub-model, which took the upper part of the web-post under horizontal shear force to represent the whole web-post under vertical shear force. A simplified design method for the web-post elastic-plastic shear buckling strength was proposed based on simulation results of the sub-model. Proper boundary conditions were applied to the sub-model to assure that its behaviors were identical to those of the whole web-post. The equation to calculate the thin plate elastic shear buckling strength was adopted as the basic form to build the design equation for elastic-plastic buckling strength of the sub-model. Parameters that might affect the elastic-plastic shear buckling strength of the whole web-post were studied. After obtaining the vertical shear buckling strength of a sub-model through FEM, the shear buckling coefficient k can be obtained through the back analysis. A practical calculation method for k was proposed through curving fitting the parameter study results. The elastic-plastic shear buckling strength of the web-post calculated using the proposed shear buckling coefficient k agreed well with that obtained from the FEM and test results. And it was more precise than those obtained from EC3 based on the strut model.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Natural Science Foundation of Shandong Province

참고문헌

  1. ABAQUS (2008), ABAQUS Standard User's Manual, Hibbitt, Karlsson and Sorensen, Inc. 1, 2 and 3, Version 6.8-1, USA.
  2. Abidin, A.R.Z. and Izzuddin, B.A. (2013), "Meshless local buckling analysis of steel beams with irregular web openings", Eng. Struct., 50(1), 197-206. https://doi.org/10.1016/j.engstruct.2012.10.006
  3. Abidin, A.R.Z., Izzuddin, B.A. and Lancaster, F. (2017), "A meshfree unit-cell method for effective planar analysis of cellular beams", Comput. Struct., 182(1), 368-391. https://doi.org/10.1016/j.compstruc.2016.09.002
  4. BS5950-1 (2000), Structural Use of Steelworks in Building, British Standard Institution.
  5. Chung, K.F., Liu, T.C.H. and Ko, A.C.H. (2011), "Investigation on Vierendeel mechanism in steel beams with circular web openings", J. Constr. Steel Res., 57(5), 467-490. https://doi.org/10.1016/S0143-974X(00)00035-3
  6. Durif, S., Bouchair, A. and Bacconnet, C. (2015), "Elastic rotational restraint of web-post in cellular beams with sinusoidal openings", Steel Compos. Struct., 18(2), 325-344. https://doi.org/10.12989/scs.2015.18.2.325
  7. EC3 (2005), "EN 1993-1-1: Eurocode 3: Design of steel structures, Part1.1: General rules and rules for building", UK.
  8. ECSC (2003), "Large web openings for service integration in composite floors", Final Report for ECSC Research Contract 7210-PR-315.
  9. Ellobody E. (2011), "Interaction of buckling modes in castellated steel beams", J. Constr. Steel Res., 67(5), 814-825. https://doi.org/10.1016/j.jcsr.2010.12.012
  10. Erdal, F. and Saka, M.P. (2013), "Ultimate load carrying capacity of optimally designed steel cellular beams", J. Constr. Steel Res., 80(1), 355-368. https://doi.org/10.1016/j.jcsr.2012.10.007
  11. Kaveh, A. and Ghafari, M.H. (2016), "Optimum design of steel floor system: effect of floor division number, deck thickness and castellated beams", Struct. Eng. Mech., 59(5), 933-950. https://doi.org/10.12989/sem.2016.59.5.933
  12. Kaveh, A. and Ghafari, M.H. (2017), "Optimum design of castellated beams: effect of composite action and semi-rigid connections", Scientia Iranica, DOI: 10.24200/SCI.2017.4195.
  13. Kaveh, A. and Shokohi, F. (2015), "Optimum design of laterallysupported castellated beams using CBO algorithm", Steel Compos. Struct., 18(2), 305-324. https://doi.org/10.12989/scs.2015.18.2.305
  14. Kaveh, A. and Shokohi, F. (2016a), "Optimum design of laterallysupported castellated beams using tug of war optimization algorithm", Struct. Eng. Mech., 58(3), 533-553. https://doi.org/10.12989/sem.2016.58.3.533
  15. Kaveh, A. and Shokohi, F. (2016b), "A hybrid optimization algorithm for the optimal design of laterally-supported castellated beams", Scientia Iranica, 23(2), 508-519. https://doi.org/10.24200/sci.2016.2135
  16. Kerdal, D. and Nethercot, D. (1984), "Failure modes for castellated beams", J. Constr. Steel Res., 4(4), 295-315. https://doi.org/10.1016/0143-974X(84)90004-X
  17. Lawson, R.M. and Hicks, S.J. (2005), "Developments in composite construction and cellular beams", Steel Compos. Struct., 5(2), 193-202. https://doi.org/10.12989/scs.2005.5.2_3.193
  18. Lawson, R.M., Lim, J., Hicks, S.J. and Simms, W.I. (2006), "Design of composite asymmetric cellular beams and beams with large web openings", J. Constr. Steel Res., 62(6), 614-629. https://doi.org/10.1016/j.jcsr.2005.09.012
  19. Lawson, R.M., Oshatogbe, D. and Newman, G.M. (2006), "Design of FABSEC cellular beams in non-composite and composite applications for both normal temperature and fire engineering conditions", Cellular Beam Software: FBeam 2006 Design Guide, Fabsec Limited Publication.
  20. Liu, T.C.H. and Chung, K.F. (2003), "Steel beams with large web openings of various shapes and sizes: Finite element investigation", J. Constr. Steel Res., 59(9), 1159-1176. https://doi.org/10.1016/S0143-974X(03)00030-0
  21. Panedpojaman, P., Thepchatri, T. and Limkatanyu, S. (2014), "Novel design equations for shear strength of local web-post buckling in cellular beams", Thin Wall. Struct., 76(1), 92-104. https://doi.org/10.1016/j.tws.2013.11.007
  22. Panedpojaman, P., Thepchatri, T. and Limkatanyu, S. (2015), "Novel simplified equations for Vierendeel design of beams with (elongated) circular openings", J. Constr. Steel Res., 112(1), 10-21. https://doi.org/10.1016/j.jcsr.2015.04.007
  23. Redwood, R.G. and Demirdjian, S. (1998), "Castellated beam web buckling in Shear", J. Struct. Eng., ASCE, 124(8), 1202-1207. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:10(1202)
  24. Surtees, J.O. and Liu, Z. (1995), "Report of loading tests on cellform beams", Research Report University of Leeds.
  25. Tsavdaridis, K.D. and D'Mello, C. (2011), "Web buckling study of the behavior and strength of perforated steel beams with different novel web opening shapes", J. Constr. Steel Res., 67(10), 1605-1620. https://doi.org/10.1016/j.jcsr.2011.04.004
  26. Wang, P.J., Guo, K.R., Liu, M. and Zhang, L.L. (2016), "Shear buckling strengths of web-posts in a castellated steel beam with hexagonal web openings", J. Constr. Steel Res., 121(1), 173-184. https://doi.org/10.1016/j.jcsr.2016.02.012
  27. Wang, P.J., Ma, Q.J. and Wang, X.D. (2014b), "Investigation on Vierendeel mechanism failure of castellated steel beams with fillet corner web openings", Eng. Struct., 74(1), 44-51. https://doi.org/10.1016/j.engstruct.2014.05.008
  28. Wang, P.J., Wang, X.D. and Ma, N. (2014a), "Vertical shear buckling capacity of web-posts in castellated steel beams with fillet corner hexagonal web openings", Eng. Struct., 75(1), 315-326. https://doi.org/10.1016/j.engstruct.2014.06.019
  29. Warren, J. (2001), "Ultimate load and deflection behaviour of cellular beams", MSc. Thesis, Durban: School of Civil Engineering, University of Natal.
  30. Yang, Y., Yu, Y.L., Guo, Y.X., Roeder, C.W., Xue, Y.C. and Shao,Y.J. (2016), "Experimental study on shear performance of partially precast Castellated Steel Reinforced Concrete (CPSRC) beams", Steel Compos. Struct., 21(2), 289-302. https://doi.org/10.12989/scs.2016.21.2.289
  31. Zaarour, W. and Redwood, R.G. (1996), "Web buckling in thin webbed castellated beams", J. Struct. Div., ASCE, 122(8), 860-866. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:8(860)

피인용 문헌

  1. Numerical analysis on stress and displacement of tapered cantilever castellated steel beam with circular openings vol.195, pp.None, 2017, https://doi.org/10.1051/matecconf/201819502007