Seismic Retrofit of Joints of a Full-Scale 3D Reinforced Concrete Frame with FRP Composites
Publication: Journal of Composites for Construction
Volume 23, Issue 2
Abstract
Postearthquake reconnaissance studies show that the beam-column joints of substandard reinforced concrete buildings (particularly the corner joints) may fail to resist the demanded forces and deformations under severe seismic actions. In this study, the effectiveness of carbon fiber–reinforced polymer (FRP) composites for retrofitting beam-column joints is demonstrated through testing of four full-scale three-dimensional reinforced concrete frames that are representative of substandard reinforced concrete buildings. Additionally, analytical seismic performance predictions made using available seismic assessment and retrofit guidelines are compared with the test results.
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Acknowledgments
The study presented in this paper was part of a research project titled “Retrofit of beam-column connections using innovative materials,” which was supported by the Scientific and Technological Research Council of Turkey (TUBITAK; Grant No. 106M054) and the Istanbul Technical University Research Fund. The constructive comments of Dr. Sumru Pala and Dr. Ercan Yuksel are gratefully acknowledged. The authors are also thankful for the collaboration of the following material and service suppliers: BASF, ISTON, Betonsa, Art-Yol Engineering, and Kalite Machinery Corporation.
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Published In
Journal of Composites for Construction
Volume 23 • Issue 2 • April 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Nov 30, 2017
Accepted: Aug 23, 2018
Published online: Jan 10, 2019
Published in print: Apr 1, 2019
Discussion open until: Jun 10, 2019
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