Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/101009
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Type: Journal article
Title: Mechanics model for simulating RC hinges under reversed cyclic loading
Author: Shukri, A.
Visintin, P.
Oehlers, D.
Jumaat, M.
Citation: Materials, 2016; 9(4):305-1-305-22
Publisher: Multidisciplinary Digital Publishing Institute
Issue Date: 2016
ISSN: 1996-1944
1996-1944
Statement of
Responsibility: 
Ahmad Azim Shukri, Phillip Visintin, Deric J. Oehlers and Mohd Zamin Jumaat
Abstract: Describing the moment rotation (M/θ) behavior of reinforced concrete (RC) hinges is essential in predicting the behavior of RC structures under severe loadings, such as under cyclic earthquake motions and blast loading. The behavior of RC hinges is defined by localized slip or partial interaction (PI) behaviors in both the tension and compression region. In the tension region, slip between the reinforcement and the concrete defines crack spacing, crack opening and closing, and tension stiffening. While in the compression region, slip along concrete to concrete interfaces defines the formation and failure of concrete softening wedges. Being strain-based, commonly-applied analysis techniques, such as the moment curvature approach, cannot directly simulate these PI behaviors because they are localized and displacement based. Therefore, strain-based approaches must resort to empirical factors to define behaviors, such as tension stiffening and concrete softening hinge lengths. In this paper, a displacement-based segmental moment rotation approach, which directly simulates the partial interaction behaviors in both compression and tension, is developed for predicting the M/θ response of an RC beam hinge under cyclic loading. Significantly, in order to develop the segmental approach, a partial interaction model to predict the tension stiffening load slip relationship between the reinforcement and the concrete is developed.
Keywords: Cyclic loading; RC beams; tension stiffening; concrete softening; hinge length
Rights: © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
RMID: 0030048078
DOI: 10.3390/ma9040305
Grant ID: http://purl.org/au-research/grants/arc/DP0985828
http://purl.org/au-research/grants/arc/DP140103525
Appears in Collections:Civil and Environmental Engineering publications

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