In-Plane Shear Behaviors of Constrained Masonry Walls Externally Retrofitted with BFRP
Publication: Journal of Composites for Construction
Volume 20, Issue 2
Abstract
This study presents an experimental study on responses of eight constrained masonry walls with tie columns and ring beams, subjected to in-plane cyclic loading before and after being retrofitted with basalt-fiber-reinforced polymer (BFRP). Among these eight walls, two without any strengthening measures served as reference specimens; two were directly strengthened with horizontal and diagonal BFRP strips after they were constructed; and the rest were tested to defined damage levels and then repaired for retesting. The opening in the wall, the layer of the BFRP strip, and the vertical compression level were considered in the test design. Experimental results showed different failure modes of the specimens. Details of testing results were discussed regarding strength and drift, hysteretic characteristics, stiffness degradation, energy dissipation, and BFRP strip strains. A performance comparison analysis was also conducted between the constrained masonry walls and the unreinforced ones. Finally, a calculation method was proposed to estimate the ultimate lateral strength of BFRP retrofitted masonry walls.
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Acknowledgments
This research was conducted at the State Key Laboratory for Disaster Reduction in Civil Engineering at Tongji University, and was sponsored by the National Science and Technology Support Program (Grant No. 2009BAJ28B02).
References
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 20 • Issue 2 • April 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Jan 14, 2015
Accepted: Aug 4, 2015
Published online: Sep 28, 2015
Discussion open until: Feb 28, 2016
Published in print: Apr 1, 2016
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