Seismic Evaluation of Masonry Structures Strengthened with Reinforced Concrete Layers
Publication: Journal of Structural Engineering
Volume 138, Issue 6
Abstract
Coating the walls with reinforced concrete layers is a conventional method of strengthening masonry structures in Iran. However, because of the lack of analytical and experimental information about the behavior of strengthened masonry walls with this method, the design of these walls is generally conducted based on empirical relations and decisions that may result in uneconomical or underdesigned strengthening details. This paper aims to develop a rational method for design and seismic evaluation of unreinforced masonry walls strengthened with reinforced concrete layers. In the proposed method, four failure modes are considered for these walls, and the strength relations and acceptance criteria for each of them are provided in accordance with FEMA 356 and ASCE 41 relations for reinforced concrete and masonry walls. The accuracy of the proposed method in predicting the nonlinear behavior and governing failure modes of the strengthened walls is validated by comparing the results with available experimental and performed numerical results.
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Acknowledgments
We acknowledge Professor Koichi Maekawa at Civil Engineering Department of the University of Tokyo for providing the WCOMD software.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 138 • Issue 6 • June 2012
Pages: 729 - 743
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Apr 13, 2011
Accepted: Sep 22, 2011
Published online: Sep 26, 2011
Published in print: Jun 1, 2012
Published ahead of production: Jun 15, 2012
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