Research Article
Aug 1968
Bending Behavior of Composite Hybrid Beams
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 94, Issue 8
Abstract
Theoretical moment-curvature and moment-stress relations are developed to describe the bending behavior of composite hybrid beams, which differs from that of noncomposite hybrid beams and of composite homogeneous beams. Formulas are developed for the ultimate strength of composite hybrid beams, as limited by either crushing of the concrete or yielding of the full cross section of the steel beam. Curves of moment vs (1) curvature, (2) location of the neutral axis, (3) bottom-flange stress, and (4) top-flange stress are presented to illustrate the theoretical bending behavior of composite hybrid beams and to compare this behavior with that of composite homogeneous beams. These curves show that there is a small difference between the behavior of the two types of beams as a result of web yielding In the hybrid beam. For design purposes, the small reduction in the flange-yield moment caused by web yielding can be accounted for by an approximate design formula that gives a reduced allowable flange stress. If this reduced allowable stress is used the bending stress in the web need not be checked.
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Published In
Journal of the Structural Division
Volume 94 • Issue 8 • August 1968
Pages: 1945 - 1964
Copyright
© 1968 American Society of Civil Engineers.
History
Published in print: Aug 1968
Published online: Feb 1, 2021
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Authors
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Charles G. Schilling, M.ASCE
Head, Engrg. Mechanics Section, Application Research Div., Applied Research Lab., United States Steel Corp., Monroeville, Pennsylvania
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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.