Strength of Webs Subjected to Compressive Edge Loading
Publication: Journal of Structural Engineering
Volume 123, Issue 2
Abstract
The behavior and strength of hot rolled beams and fabricated plate girders, subjected to localized edge or patch loading in the plane of the web, is analyzed. Numerous tests carried out over the past 50 years have indicated that failure occurs due to web crippling, which is characterized by elastoplastic postbuckling of the web plate accompanied by the formation of a plastic collapse mechanism in the flange. The tests have also indicated that ultimate loads are approximately proportional to the square of the web plate thickness, other parameters such as web depth, flange width and thickness, and even material yield strength, being relatively much less significant. Available test results are summarized and previously developed mechanism solutions for patch loading between vertical web stiffeners are modified to provide improved predictions of failure loads. The mechanism solutions are also reduced to simple closed form equations for routine practical application, which are adapted to predict web crippling failures at simple end supports.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 123 • Issue 2 • February 1997
Pages: 176 - 183
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Feb 1, 1997
Published in print: Feb 1997
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