Local Stresses and Crack Displacements in Reinforced Concrete Elements
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Volume 128, Issue 10
Abstract
The average stress condition in a reinforced concrete (RC) element is not identical to the local stress condition at a crack because of bond slip between the concrete and the reinforcement. After a review of previous research concerning local stresses at cracks, this paper presents local equilibrium and compatibility equations for RC elements given constitutive models for bond and friction. A procedure is described for analyzing the in-plane pure shear response of orthogonally reinforced concrete panels. The procedure considers stress variations between cracks, the crack formation process, and the slip accompanying the friction across a crack. Corresponding analytical results are compared with previous experimental work. It is shown that after the residual tension at the crack is lost, the slip increases almost proportionally to the normal crack displacement Accompanying local shears remain because of friction even when the normal crack displacement continues to increase.
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Published In
Journal of Structural Engineering
Volume 128 • Issue 10 • October 2002
Pages: 1263 - 1271
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Mar 27, 2001
Accepted: Feb 26, 2002
Published online: Sep 13, 2002
Published in print: Oct 2002
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