Seismic Performance of Cantilever-Reinforced Concrete Masonry Shear Walls
Publication: Journal of Structural Engineering
Volume 140, Issue 9
Abstract
This paper describes an experimental study of the seismic performance of cantilever-reinforced concrete masonry shear walls. As part of a research project on displacement-based design of masonry structures, 30 cantilever shear-wall specimens, made of fully grouted reinforced concrete masonry, were tested under reversed cyclic loading at the University of Texas at Austin and at Washington State University. Based on test results, the relationship between key design parameters and the nonlinear hysteretic response of the specimens was evaluated. The specimens exhibited predominantly flexural behavior, as intended, and their behavior was generally in good agreement with that reported in previous research work. Specimens constructed with masonry units containing recycled materials behaved similarly to otherwise identical specimens constructed with ordinary units, indicating the structural equivalence of those two types of units. Lap splices in the longitudinal reinforcement caused a reduction in wall performance. Walls with longitudinal reinforcement concentrated at jambs behaved similarly to walls with evenly distributed longitudinal reinforcement.
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Acknowledgments
This paper was supported by the U.S. National Institute of Standards and Technology (NIST ARRA Measurement Science and Engineering Grant Award No. 60NANB10D013) and utilized research infrastructure provided by the U.S. National Science Foundations Network for Earthquake Engineering Simulation (NSF NEES).
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Information
Published In
Journal of Structural Engineering
Volume 140 • Issue 9 • September 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Feb 27, 2013
Accepted: Sep 9, 2013
Published online: Apr 10, 2014
Published in print: Sep 1, 2014
Discussion open until: Sep 10, 2014
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