Strain-Softening of Laterally Reinforced Concrete Panels in Compression
Publication: Journal of Structural Engineering
Volume 123, Issue 5
Abstract
Understanding the strain-softening behavior of concrete provides an essential key for numerical modeling. The strain-softening response depends, among other influences, on the degree of lateral constraint. In this paper the behavior of concrete panels with constraint provided by lateral in-plane reinforcement subjected to uniaxial compression is studied. Two different concrete strengths (41 and 87 MPa) were investigated. Results given pertain to compressive strength, axial and lateral strain at the ultimate, the effect of reinforcement ratio and reinforcement spacing, and the influence of panel width and thickness. To minimize boundary constraint the panels were tested using a lubricant to reduce friction between loading platens and the specimen. A combined feedback signal of the applied force and the axial specimen displacement provided a stable postpeak response. An existing model is used for predicting complete stress-strain curves of plain and reinforced normal-strength panels.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 123 • Issue 5 • May 1997
Pages: 575 - 582
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: May 1, 1997
Published in print: May 1997
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