Experimental Investigation of FRP-Strengthened RC Beam-Column Joints
Publication: Journal of Composites for Construction
Volume 7, Issue 1
Abstract
The results of a comprehensive experimental program, aimed at providing a fundamental understanding of the behavior of shear-critical exterior reinforced concrete (RC) joints strengthened with fiber reinforced polymers (FRP) under simulated seismic load, are presented in this study. The role of various parameters on the effectiveness of FRP is examined through 2/3-scale testing of 18 exterior RC joints. Conclusions are drawn on the basis of certain load versus imposed displacement response characteristics, comprising the strength (maximum lateral load), the stiffness, and the cumulative energy dissipation capacity. The results demonstrate the important role of mechanical anchorages in limiting premature debonding, and they provide important information on the role of various parameters, including: area fraction of FRP; distribution of FRP between the beam and the column; column axial load; internal joint (steel) reinforcement; initial damage; carbon versus glass fibers; sheets versus strips; and effect of transverse beams.
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Information
Published In
Journal of Composites for Construction
Volume 7 • Issue 1 • February 2003
Pages: 39 - 49
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Sep 11, 2000
Accepted: Mar 12, 2001
Published online: Jan 15, 2003
Published in print: Feb 2003
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