Proposal of a Design Model for Masonry Walls Subjected to In-Plane Loading
Publication: Journal of Structural Engineering
Volume 139, Issue 4
Abstract
Masonry walls subjected to in-plane loading exhibit a complex behavior because of the influence of several parameters such as axial load, aspect ratio, and the strength of materials. In high-rise buildings or seismic areas, large tensile stresses may arise in these walls, and vertical and horizontal reinforcement is often used to provide proper resistance, which increases the complexity of the structural behavior. This work presents (1) an overview of the experimental behavior of unreinforced and reinforced masonry walls; (2) an overview of distinct design methods aimed at calculating the in-plane lateral resistance; and (3) a proposal of a new design model for reinforced masonry walls subjected to in-plane loading. The proposed model considers the coupling interaction of the flexural and shear resisting mechanisms and updates the role of the vertical and horizontal reinforcement to the lateral resistance. A database composed of experimental results of the in-plane lateral resistance of 101 masonry walls available in the literature was used to evaluate the performance of existing models and to validate the newly proposed model, which exhibits much better performance.
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Acknowledgments
This work was partly supported by Contract DISWALL, “Development of innovative systems for reinforced masonry walls,” COOP-CT-2005-018120 from the European Commission. V. G. Haach was supported by the Programme Alßan, the European Union Programme of High Level Scholarships for Latin America, and Scholarship No. E06D100148BR.
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Published In
Journal of Structural Engineering
Volume 139 • Issue 4 • April 2013
Pages: 537 - 547
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jul 25, 2011
Accepted: Jul 20, 2012
Published online: Aug 10, 2012
Published in print: Apr 1, 2013
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