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

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

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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
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  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