Research Article
Apr 1978
Towards a Rational Theory for RC Members in Shear
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 104, Issue 4
Abstract
The diagonal compression field theory for symmetrically reinforced concrete beams monotonically loaded in shear at sections where flexure is unimportant, is presented. This theory assumes that after cracking the concrete can resist no tension and that the shear will be carried by a field of diagonal compression. As well as considering the equilibrium conditions that relate the average stresses in a beam to the applied loads the theory considers the compatibility conditions that exist between the average strains in the various directions. Expressions are given which enable the shear deformations (and thus the effective shear modulus) of diagonally cracked reinforced and prestressed beams to be calculated. Based on a suggested failure criterion for diagonally cracked concrete, equations for the shear capacity of reinforced and prestressed beams are derived. A design chart based on these equations is given.
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Published In
Journal of the Structural Division
Volume 104 • Issue 4 • April 1978
Pages: 649 - 666
Copyright
© 1978 American Society of Civil Engineers.
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Published in print: Apr 1978
Published online: Feb 1, 2021
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Authors
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Michael P. Collins, M.ASCE
Prof., Dept. of Civ. Engrg., Univ. of Toronto, Toronto, Canada
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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.