Experimental Study of Rectangular RC Columns Strengthened with CFRP Composites under Eccentric Loading
Publication: Journal of Composites for Construction
Volume 14, Issue 4
Abstract
This paper presents the results of experimental studies on reinforced concrete columns strengthened with carbon fiber-reinforced polymer (CFRP) composites under the combination of axial load and bending moment. A total of seven large-scale specimens with rectangular cross section were prepared and tested under eccentric compressive loading up to failure. The overall length of specimens with two haunched heads was 2,700 mm. Different FRP thicknesses of two, three, and five layers; fiber orientations of 0°, 45°, and 90°; and two eccentricities of 200 and 300 mm were investigated. The effects of these parameters on load-displacement and moment-curvature behaviors of the columns as well as the variation of longitudinal and transverse strains on different faces of the columns were studied. The results of the study demonstrated a significant enhancement on the performance of strengthened columns compared to unstrengthened columns.
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Acknowledgments
The writers wish to acknowledge the financial support provided by the Amirkabir University of Technology (Tehran Polytechnic). The writers are grateful to Dr. T. Taghikhani, Dr. F. Hatami, Mr. M. S. Khaleghi Moghaddam, Mr. A. Nikookar, Mr. A. Rajabi, and Mr. A. Aminabadi (Ostad Asghar) for their efforts and assistance during this experimental research.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 14 • Issue 4 • August 2010
Pages: 443 - 450
Copyright
© 2010 ASCE.
History
Received: Aug 17, 2009
Accepted: Dec 4, 2009
Published online: Jan 28, 2010
Published in print: Aug 2010
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