Steel and Composite Structures

  • 제19권4호
  • /
  • Pages.897-916
  • /
  • 2015
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Lateral-torsional buckling steel beams with simultaneously tapered flanges and web

  • Kus, Juliusz (Faculty of Civil Engineering, Opole University of Technology)
  • 투고 : 2014.09.04
  • 심사 : 2015.03.06
  • 발행 : 2015.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

A procedure for critical buckling moment of a tapered beam is proposed with the application of potential energy calculations using Ritz method. Respective solution allows to obtain critical moments initiating lateral buckling of the simply supported, modestly tapered steel I-beams. In particular, lateral-torsional buckling of beams with simultaneously tapered flanges and the web are considered. Detailed, numerical, parametric analyses are carried out. Typical engineering, uniformly distributed design loads are considered for three cases of the load, applied to the top flange, shear centre, as well as to the bottom flange. In addition simply supported beam under gradient moments is investigated. The parametric analysis of simultaneously tapered beam flanges and the web, demonstrates that tapering of flanges influences much more the critical moments than tapering of the web.

키워드

과제정보

연구 과제 주관 기관 : Polish Ministry of Science & Higher Education

참고문헌

  1. Andrade, A., Camotim, D., Borges Dinis, P. (2007), "Lateral-torsional buckling of singly symmetric web-tapered thin-walled I-beams: 1D model vs. Shell FEA", Comput. Struct., 85(17-18), 1343-1359. https://doi.org/10.1016/j.compstruc.2006.08.079
  2. Asgarian, B., Soltani, M. and Mohri, F. (2013), "Lateral-torsional buckling of tapered thin-walled beams with arbitrary cross-sections", Thin-Wall. Struct., 62, 96-108. https://doi.org/10.1016/j.tws.2012.06.007
  3. Benyamina, A.B., Meftah, S.A., Mohri, F. and Daya, E.M. (2013), "Analytical solutions attempt for lateral torsional buckling of double symmetric web-tapered I-beams", Eng. Struct., 56, 1207-1219. https://doi.org/10.1016/j.engstruct.2013.06.036
  4. Bradford, M.A. (1988), "Stability of tapered I-beams", J. Construct. Steel Res., 9(3), 195-216. https://doi.org/10.1016/0143-974X(88)90089-2
  5. Bradford, M.A. and Cuk, P.E. (1988), "Elastic buckling of tapered monosymmetric I-beams", J. Struct. Eng., 114(5), 977-996. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:5(977)
  6. Brown, T.G. (1981), "Lateral torsional buckling of tapered I-beams", J. Struct. Div., ASCE, 107, 689-697.
  7. Butler, D.J. (1966), "Elastic buckling on laterally and torsionally braced tapered beams", Weld. J. Res. Suppl., 45(1), 1-41.
  8. Gupta, P., Wang, S.T. and Blandford, G.E. (1996), "Lateral-torsional buckling of nonprismatic I-beams", J. Struct. Eng., 122(7), 748-755. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:7(748)
  9. Kitipornchai, S. and Trahair, N.S. (1972), "Elastic stability of tapered I-beams", J. Struct. Div., ASCE, 98(3), 713-728.
  10. Kus, J. (2013), "Stability of beams with tapered cross-sections", Ph.D. Dissertation; Faculty of Civil Engineering Opole University of Technology, pp. 1-92. [In Polish: Analiza statecznosci belek ze zbieżnymi przekrojami poprzecznymi]
  11. Marques, L., da Silva, L.S., Greiner, R., Rebelo, C. and Taras, A. (2013), "Development of a consistent design procedure for lateral-torsional buckling of tapered beams", J. Construct. Steel Res., 89, 213-235. https://doi.org/10.1016/j.jcsr.2013.07.009
  12. Raftoyiannis, I.G., Ermopoulos, J.Ch. (2005), "A stability of tapered and stepped steel columns with initial imperfections", Eng. Struct.,. 27(8), 1248-1257. https://doi.org/10.1016/j.engstruct.2005.03.009
  13. Saka, M.P. (1997), "Optimum design of steel frames with tapered members", Comput. Struct., 63, 797-811. https://doi.org/10.1016/S0045-7949(96)00074-0
  14. Wang, C.M., Thevendran, V., Teo, K.L. and Kitipornchai, S. (1986), "Optimal design of tapered beams for maximum buckling strenght", Eng. Struct., 8(4), 276-284. https://doi.org/10.1016/0141-0296(86)90035-0
  15. Yang, W.B. and Yau, J.D. (1997), "Stability of beams with tapered I-sections", J. Eng. Mech., 113(9), 1337-1357. https://doi.org/10.1061/(ASCE)0733-9399(1987)113:9(1337)
  16. Yuan, W.B., Kim, B. and Chen, C.Y. (2013), "Lateral-torsional buckling of steel web tapered tee-section cantilevers", J. Construct. Steel Res., 87, 31-37. https://doi.org/10.1016/j.jcsr.2013.03.026
  17. Zhang, L. and Tong, G.S. (2008), "Lateral buckling of web-tapered I-beams: A new theory", J. Construct. Steel Res., 64, 1379-1393. https://doi.org/10.1016/j.jcsr.2008.01.014

피인용 문헌

  1. Shape optimization of tapered I-beams with lateral-torsional buckling, deflection and stress constraints vol.143, 2018, https://doi.org/10.1016/j.jcsr.2017.12.022
  2. 05.19: Lateral-torsional buckling of steel beams with tapered flanges and web vol.1, pp.2-3, 2017, https://doi.org/10.1002/cepa.160
  3. Calculation of critical lateral-torsional buckling loads of beams subjected to arbitrarily transverse loads pp.1793-6764, 2019, https://doi.org/10.1142/S0219455419500317
  4. Structural behavior of non-prismatic mono-symmetric beam vol.376, pp.1757-899X, 2018, https://doi.org/10.1088/1757-899X/376/1/012111
  5. Collapse of steel cantilever roof of tribune induced by snow loads vol.23, pp.3, 2015, https://doi.org/10.12989/scs.2017.23.3.273
  6. Experimental study on partially-reinforced steel RHS compression members vol.63, pp.3, 2017, https://doi.org/10.12989/sem.2017.63.3.385
  7. Lateral-torsional buckling of functionally graded tapered I-beams considering lateral bracing vol.28, pp.4, 2018, https://doi.org/10.12989/scs.2018.28.4.403
  8. An alternative evaluation of the LTB behavior of mono-symmetric beam-columns vol.30, pp.5, 2019, https://doi.org/10.12989/scs.2019.30.5.471
  9. Improved Finite Element Model for Lateral Stability Analysis of Axially Functionally Graded Nonprismatic I-beams vol.19, pp.9, 2019, https://doi.org/10.1142/s0219455419501086
  10. Lateral-Torsional Stability Analysis of a Simply Supported Axially Functionally Graded Beam with a Tapered I-Section vol.56, pp.1, 2015, https://doi.org/10.1007/s11029-020-09859-5
  11. The structural efficiency of tapered steel section with perforation under lateral torsional buckling behaviour vol.17, pp.6, 2020, https://doi.org/10.1108/wje-07-2019-0189
  12. An Analysis of the Effect of a Change in the Support Point Location on the Vibration of Thin-Walled Beams vol.21, pp.9, 2021, https://doi.org/10.1142/s021945542150125x