Research Article
Sep 1982
Elastic Buckling of Laterally Continuous I-Beams
Publication: Journal of the Structural Division
Volume 108, Issue 9
Abstract
An approximate method for determining the elastic flexural-torsional buckling loads of laterally continuous structures is developed. The method can be applied to structures loaded at braced points. The braces and supports are assumed to prevent lateral deflection and twisting. The procedure locates a critical segment and adjacent restraining segments which together form a subassemblage. The elastic critical load is obtained by determining the effective length of the critical segment. Charts of effective length factors are presented and the factors are shown to depend on the amount of end restraint and on the critical segment beam parameter and end moment ratio. The proposed method is applied to a worked example. The result, along with other results presented in the paper, is in close agreement with accurate numerical solutions.
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Information
Published In
Journal of the Structural Division
Volume 108 • Issue 9 • September 1982
Pages: 2099 - 2116
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Sep 1982
Published online: Feb 1, 2021
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Authors
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Peter F. Dux
Lect. in Civ. Engrg., Capriconia Inst. of Advanced Education, Rockhampton, Qld., Australia
Sritawat Kitipornchai, M.ASCE
Sr. Leet. in Civ. Engrg., Univ. of Queensland, Qld., 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.