Steel and Composite Structures

  • 제4권1호
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  • Pages.23-36
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  • 2004
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Inelastic distortional buckling of hot-rolled I-section beam-columns

  • 투고 : 2003.10.13
  • 심사 : 2004.02.10
  • 발행 : 2004.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

The inelastic lateral-distortional buckling of doubly-symmetric hot-rolled I-section beam-columns subjected to a concentric axial force and uniform bending with elastic restraint which produce single curvature is investigated in this paper. The numerical model adopted in this paper is an energy-based method which leads to the incremental and iterative solution of a fourth-order eigenproblem, with very rapid solutions being obtained. The elastic restraint considered in this paper is full restraint against translation, but torsional restraint is permitted at the tension flange. Hitherto, a numerical method to analyse the elastic and inelastic lateral-distortional buckling of restrained or unrestrained beam-columns is unavailable. The prediction of the inelastic lateral-distortional buckling load obtained in this study is compared with the inelastic lateral-distortional buckling of restrained beams and the inelastic lateral-torsional buckling solution, by suppressing the out-of-plane web distortion, is published elsewhere and they agree reasonable well. The method is then extended to the lateral-distortional buckling of continuously restrained doubly symmetric I-sections to illustrate the effect of web distortion.

키워드

참고문헌

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피인용 문헌

  1. Partially restrained beam-column weak-axis moment connections of low-rise steel structures vol.76, pp.5, 2004, https://doi.org/10.12989/sem.2020.76.5.663