Tests on Seismically Damaged Reinforced Concrete Structural Walls Repaired Using Fiber-Reinforced Polymers
Publication: Journal of Composites for Construction
Volume 14, Issue 5
Abstract
This paper presents the results of an experimental study on the seismic performance of axially loaded reinforced concrete (RC) walls with boundary elements confined by limited transverse reinforcement. These specimens were initially subjected to axial compression loading and cyclic lateral loading to failure, and subsequently repaired and subjected to loading again. The test specimens include two low-rise walls of aspect ratio 1.125 and two medium-rise walls of aspect ratio 1.625. Results show that significant drift capacities were achieved from the strengthened walls. The performance of the repaired walls was similar to the original walls before repair in terms of the flexural behavior, shear strength, and ductility capacities. While the fiber-reinforced polymer (FRP) anchorage may undergo premature failure, it however failed only after the peak lateral strength of the repaired wall was attained. This paper demonstrates that repair of damaged RC walls using FRP is able to restore the performance of damaged RC walls while also serving as repair method of relative ease.
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Acknowledgments
This research was made possible through the support of and collaboration with FYFE Asia Private Limited in Singapore. The significant assistance from Jeslin Quek and Ow Meng Chye of FYFE Asia are gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 14 • Issue 5 • October 2010
Pages: 597 - 608
Copyright
© 2010 ASCE.
History
Received: May 28, 2009
Accepted: Jan 28, 2010
Published online: Feb 3, 2010
Published in print: Oct 2010
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