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Confined concrete model under cyclic load

Confined concrete model under cyclic load A uniaxial cyclic model for confined and unconfined concrete is developed. Starting from an existing model, the cyclic rules to define inelastic strain and degradation of strength and stiffness are first reviewed and then modified to produce a new concrete model with enhanced performance. Comparisons at the stress-strain level between the new and existing concrete models reveal the adequacy of the new model in terms of numerical stability and increasing degradation of strength and stiffness under increasing cyclic strain. The proposed model is validated by comparing analytical predictions with experimental results of reinforced concrete members under cyclic and dynamic loading. Good agreement is observed between analysis and experiments, confirming the ability of the model to predict the cyclic and dynamic behavior of reinforced concrete members with mixed axial-flexural response characteristics. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Materials and Structures Springer Journals

Confined concrete model under cyclic load

Materials and Structures , Volume 30 (3) – Aug 14, 2006

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References (14)

Publisher
Springer Journals
Copyright
Copyright © 1997 by RILEM
Subject
Engineering; Theoretical and Applied Mechanics; Structural Mechanics; Mechanical Engineering; Operating Procedures, Materials Treatment; Civil Engineering; Building Materials
ISSN
1359-5997
eISSN
1871-6873
DOI
10.1007/BF02486385
Publisher site
See Article on Publisher Site

Abstract

A uniaxial cyclic model for confined and unconfined concrete is developed. Starting from an existing model, the cyclic rules to define inelastic strain and degradation of strength and stiffness are first reviewed and then modified to produce a new concrete model with enhanced performance. Comparisons at the stress-strain level between the new and existing concrete models reveal the adequacy of the new model in terms of numerical stability and increasing degradation of strength and stiffness under increasing cyclic strain. The proposed model is validated by comparing analytical predictions with experimental results of reinforced concrete members under cyclic and dynamic loading. Good agreement is observed between analysis and experiments, confirming the ability of the model to predict the cyclic and dynamic behavior of reinforced concrete members with mixed axial-flexural response characteristics.

Journal

Materials and StructuresSpringer Journals

Published: Aug 14, 2006

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