Research Article
Dec 1977
Effect of Warping Restraints on I-Beam Buckling
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VIEW THE REPLYAuthors: Morris Ojalvo, M.ASCE, and Robert S. ChambersAuthor Affiliations
Publication: Journal of the Structural Division
Volume 103, Issue 12
Abstract
Elastic lateral buckling moments are computed for six wide-flange beams under uniform moment for a comprehensive range of length to depth and depth to flange width ratios. Support conditions considered are fully fixed about the minor axis, hinged about the minor axis and free to warp, and hinged about the minor axis and warping suppressed. The last condition is reproduced in a prototype by welding a troughlike shape to the web and flanges in a manner that produced a warp restraining torque tube between the flanges. A numerical method is used to obtain buckling moments for the hinged-warp restrained case. The fixed-support condition is easily the superior way of suppressing buckling but that condition is often not easily producible in a practical design detail. On the other hand, the hinged-warped restrained support condition results in significant improvement in the buckling moments and has the advantage of being relatively easy to produce in a design detail.
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Published In
Journal of the Structural Division
Volume 103 • Issue 12 • December 1977
Pages: 2351 - 2360
Copyright
© 1977 American Society of Civil Engineers.
History
Published in print: Dec 1977
Published online: Feb 1, 2021
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Authors
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Morris Ojalvo, M.ASCE
Prof. of Civ. Engrg., The Ohio State Univ., Columbus, Ohio
Robert S. Chambers
Engr., General Dynamics Corp., Fort Worth, Tex.
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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.