Stresses and Crack Angles in Concrete Membrane Elements
Publication: Journal of Structural Engineering
Volume 124, Issue 12
Abstract
This paper compares the two softened-truss models for the nonlinear analysis of reinforced concrete membrane elements: (1) the rotating-angle softened-truss model, which is simple but unable to predict the “contribution of concrete” (Vc); and (2) the fixed-angle softened-truss model, a more complex model but capable of predicting Vc. This comparison elucidates the stresses and crack angles in a membrane element, clearly showing that Vc is caused by the shear strength of concrete and not attributable to the average tensile stress of concrete as claimed by the modified compression field theory. Two conceptual errors (one in stresses and one in crack angle) in the modified compression field theory are discussed. The correct distribution of stresses in a typical shear element is illustrated by a numerical example.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 124 • Issue 12 • December 1998
Pages: 1476 - 1484
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Dec 1, 1998
Published in print: Dec 1998
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