Behavior of Composite Unreinforced Masonry–Fiber-Reinforced Polymer Wall Assemblages Under In-Plane Loading
Publication: Journal of Composites for Construction
Volume 9, Issue 1
Abstract
An experimental investigation was conducted to study the in-plane behavior of face shell mortar bedded unreinforced masonry (URM) wall assemblages retrofitted with fiber-reinforced polymer (FRP) laminates. Forty-two URM assemblages were tested under different stress conditions present in masonry shear and infill walls. Tests included prisms loaded in compression with different bed joint orientation (on/off-axis compression), diagonal tension specimens, and specimens loaded under joint shear. The behavior of each specimen type is discussed with emphasis on modes of failure, strength and deformation characteristics. Results showed that the application of FRP laminates on URM has a great influence on strength, postpeak behavior, as well as altering failure modes and maintaining the specimen integrity. The retrofitted specimens reached compressive strength of 1.62–5.64 times that of their unretrofitted counterparts, depending on the bed joint orientation, and joint shear strength increased by eightfold.
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Acknowledgments
The work presented herein was supported under Grant No. CMS-9730646 from the National Science Foundation (NSF). The results, opinions, and conclusions expressed in this paper are solely those of the writers and do not necessarily reflect those of the NSF. The writers would like to gratefully acknowledge assistance of Edward Fyfe, Peter Milligan, and Sarah Cruickshank, Fyfe Co. LLC, Calif., for providing the FRP, and John Sabia, D.M. Sabia Co., Pa. for providing the mason.
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Information
Published In
Journal of Composites for Construction
Volume 9 • Issue 1 • February 2005
Pages: 73 - 83
Copyright
© 2005 ASCE.
History
Received: Dec 22, 2003
Accepted: May 7, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
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