Prediction of the Lateral Load-Displacement Curves for Reinforced Concrete Squat Walls Failing in Shear
Publication: Journal of Structural Engineering
Volume 143, Issue 10
Abstract
The reinforced concrete squat wall, which demonstrates high stiffness and load capacity, is one of the most effective earthquake-resisting members. It has been widely used in seismic design and retrofitting and thus is crucial to an understanding of the lateral load-displacement behavior within. Based on the strut-and-tie concept, a trilinear model is proposed to predict the lateral load-displacement curves for reinforced concrete squat walls failing in shear. This paper proposes a curve with three turning points: the cracking point associated with the apparent decrease in stiffness as the crack occurs; the strength point as the squat wall fails in shear; and the collapse point as the squat wall finally loses its axial load-carrying capacity. With a simplified calculation process, the proposed model is proven suitable for application in engineering practice and achieves successful predictions of lateral load-displacement curves for squat walls. A further comparison between the proposed model and other available models is carried out so as to further explain the differences among those models and describe their physical configurations.
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Acknowledgments
The authors express their gratitude to the Ministry of Science and Technology (MOST 105-2221-E-002-024) of Taiwan and the National Center for Research on Earthquake Engineering (06102A1300) for the support funds provided throughout this study.
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Published In
Journal of Structural Engineering
Volume 143 • Issue 10 • October 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Nov 9, 2016
Accepted: Apr 18, 2017
Published online: Aug 1, 2017
Published in print: Oct 1, 2017
Discussion open until: Jan 1, 2018
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