Research Article
Jul 1980
Web Distortion and Flexural-Torsional Buckling
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 106, Issue 7
Abstract
In a member with a slender, unstiffened web, a combined buckling mode may occur in which the web distorts and reduces the member's torsional resistance, and consequently its resistance to lateral (or flexural-torsional) buckling. In this paper, an approximate analysis of the effect of web distortion on the elastic flexural-torsional buckling of a simply supported I-section member is presented. This analysis leads to a closed form interaction equation, relating the critical uniform moment and axial load acting on the member. The buckling moments and loads determined from this equation are compared with the results of a more sophisticated finite strip analysis, and are shown to be of high accuracy.
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Published In
Journal of the Structural Division
Volume 106 • Issue 7 • July 1980
Pages: 1557 - 1571
Copyright
© 1980 American Society of Civil Engineers.
History
Published in print: Jul 1980
Published online: Feb 1, 2021
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Authors
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Gregory J. Hancock
Sr. Lect. in Civ. Engrg., Univ. of Sydney, New South Wales, Australia
Mark A. Bradford
Research Student in Civ. Engrg., Univ. of Sydney, New South Wales, Australia
Nicholas S. Trahair, M.ASCE
Prof. of Civ. Engrg., Univ. of Sydney, New South Wales, Australia
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.