Seismic Behavior of Reinforced Concrete Interior Beam-Wide Column Joints Repaired Using FRP
Publication: Journal of Composites for Construction
Volume 15, Issue 3
Abstract
To prevent the casualties that can result from the collapse of earthquake-damaged structures, it is important that structures be rehabilitated as soon as possible. This paper proposes a rapid rehabilitation scheme for repairing moderately damaged reinforced concrete (RC) beam-wide column joints. Four nonseismically detailed interior beam-wide column joints were used as control specimens. All four subassemblages were subjected to similar cyclic lateral displacement to provide the equivalent of severe earthquake damage. The damaged control specimens were then repaired by filling their cracks with epoxy and externally bonding them with carbon-fiber-reinforced polymer (CFRP) sheets and glass-fiber-reinforced polymer (GFRP) sheets. These repaired specimens were then retested and their performance compared with that of the control specimens. This paper demonstrates that the repair of damaged RC beam-wide column joints by using FRP can restore the performance of damaged RC joints with relative ease, suggesting that the repair of beam-column joints is a cost-effective alternative to complete demolition and replacement
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Acknowledgments
This research was made possible through the support of and collaboration with UNSPECIFIEDFYFE Asia Private Limited in Singapore. The significant assistance from Jeslin Quek of FYFE Asia is gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 15 • Issue 3 • June 2011
Pages: 327 - 338
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jan 17, 2010
Accepted: Aug 11, 2010
Published online: Aug 20, 2010
Published in print: Jun 1, 2011
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