Research Article
Mar 1982
Plastic Rotation of Composite Beams
Publication: Journal of the Structural Division
Volume 108, Issue 3
Abstract
The sagging rotation capacity of composite beams consisting of a concrete slab attached to a steel beam by a shear connection is studied. Tests are reported on four full-scale beams in the range of ductility parameter x from 0.65 to 3.0. This parameter is an index of the degree of strain-hardening developed in the steel beam at collapse. Expressions are proposed for the minimum inelastic rotation and deflection available at collapse. Examples are given of the application of these expressions to design problems with continuous composite beams. It is shown that, with a minimum value of x equal to 1.4, sufficient sagging rotation should be available to develop the conventional plastic design collapse load under the worst combinations of spans and loading.
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Published In
Journal of the Structural Division
Volume 108 • Issue 3 • March 1982
Pages: 643 - 659
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Mar 1982
Published online: Feb 1, 2021
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Authors
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Peter Ansourian
Sr. lect., University of Sydney, New South Wales, Australia
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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.