Shear Strength of Reinforced Concrete Deep Beams
Publication: Journal of Structural Engineering
Volume 119, Issue 8
Abstract
Formulas to predict the ultimate shear strength of reinforced concrete deep beams are proposed. The derived equations are based on limit analysis theorems and associated flow rule. The lowest upper‐bound solution is achieved through the work equation. With the effective strength concept, the materials are assumed to be perfectly rigid‐plastic. A special constant is introduced to consider the structural effect on the effectiveness strength factor of concrete. For deep beams, this constant is equal to where λ is the shear‐span ratio of a deep beam. The interaction between horizontal and vertical web reinforcements is carefully analyzed. It is found that the yield condition of horizontal and vertical web reinforcements depends on the ratio of and , or the degree of horizontal and vertical web reinforcements. Comparisons with experimental work are performed, and they show good agreement between the proposed equations and test results.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 119 • Issue 8 • August 1993
Pages: 2294 - 2312
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Feb 5, 1992
Published online: Aug 1, 1993
Published in print: Aug 1993
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