Lateral Out-of-Plane Strengthening of Masonry Walls with Composite Materials
Publication: Journal of Composites for Construction
Volume 14, Issue 4
Abstract
The structural behavior of masonry walls laterally strengthened with externally bonded composite materials to resist out-of-plane loads is theoretically and experimentally studied. Hollow concrete block masonry walls and solid autoclaved aerated concrete (AAC) block masonry walls are examined. A theoretical model that accounts for the cracking and the physical nonlinear behavior, the debonding of the composite layers, the arching effect, the interfacial stresses, and the unique modeling aspects of the laterally strengthened wall is presented. The experimental study includes loading to failure of 4 laterally strengthened masonry walls and 2 control walls. The experimental and analytical results point at the unique aspects of the lateral strengthening of masonry walls with composite materials. In particular, they reveal and explain the premature shear failure in laterally strengthened hollow concrete blocks walls and, on the other hand, demonstrate the potential of lateral fiber-reinforced polymer strengthening of AAC masonry walls. The laterally strengthened AAC masonry walls reveal improved strength, deformability, and integrity at failure characteristics.
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Acknowledgments
The financial support for this study by the Israel Ministry of Construction and Housing is gratefully acknowledged.
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Information
Published In
Journal of Composites for Construction
Volume 14 • Issue 4 • August 2010
Pages: 376 - 387
Copyright
© 2010 ASCE.
History
Received: May 5, 2009
Accepted: Nov 11, 2009
Published online: Jul 15, 2010
Published in print: Aug 2010
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