Strengthening of Infill Masonry Walls with FRP Materials
Publication: Journal of Composites for Construction
Volume 15, Issue 2
Abstract
This paper evaluates the effectiveness of different externally bonded glass fiber–reinforced polymer (GFRP) systems for increasing the out-of-plane resistance of infill masonry walls to loading. The research included a comprehensive experimental program comprising 14 full-scale specimens, including four unstrengthened (control) specimens and 10 strengthened specimens. To simulate the boundary conditions of infill walls, all specimens consisted of a reinforced concrete (RC) frame, simulating the supporting RC elements of a building superstructure, which was infilled with solid concrete brick masonry. The specimens were loaded out-of-plane using uniformly distributed pressure to simulate the differential (suction) pressure induced by a tornado. Parameters investigated in the experimental program included aspect ratio, FRP coverage ratio, number of masonry wythes, and type of FRP anchorage. Test results indicated that the type of FRP anchorage had a significant effect on the failure mode. Research findings concluded that GFRP strengthening of infill masonry walls is effective in increasing the out-of-plane load-carrying capacity when proper anchorage of the FRP laminate is provided.
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Acknowledgments
The writers would like to gratefully acknowledge the assistance of the following: Zachery Smith, Fyfe Co. LLC, California; Bud Starnes, Lawrence Llibre, and Clifford Davis, Duke Energy Corp., South Carolina; Greg Lucier and Vivek Hariharan, North Carolina State University, North Carolina.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 15 • Issue 2 • April 2011
Pages: 206 - 214
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jul 17, 2009
Accepted: Nov 3, 2009
Published online: Nov 6, 2009
Published in print: Apr 1, 2011
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