Research Article
Jul 1976
Deflection and Ponding of Steel Joists
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 102, Issue 7
Abstract
The techniques of discrete field analysis are utilized to investigate the response of steel joists (idealized as warren trusses) to various static loading conditions. Deflection formulas for arbitrary static loads are presented in finite Fourier series form. These formulas are specialized for the case of a uniformly distributed loading and a highly accurate approximate formula obtained for vertical deflections. The effect of web strain for both short and long spans is accurately reflected and generally will result in less than 2% error. Deflection formulas in the form of finite Fourier series are also obtained for the case of rainwater ponding loads combined with static live and dead loads. For ponding with a uniformly distributed live or dead loading, highly accurate equivalent beam approximate formulas are presented which should be quite useful to the practitioner. In addition to providing insight into the parameters affecting joint behavior, heretofore unavailable analysis techniques are presented to aid designers in steel joist construction.
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Information
Published In
Journal of the Structural Division
Volume 102 • Issue 7 • July 1976
Pages: 1399 - 1410
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Jul 1976
Published online: Feb 1, 2021
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Authors
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R. Richard Avent, M.ASCE
Assoc. Prof. Civ. Engrg., Mississippi State Univ., Starkville, Miss.
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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.
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.
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.