Flexural Strengthening of Structural Steel Angle Sections Using CFRP: Experimental Investigation
Publication: Journal of Composites for Construction
Volume 20, Issue 1
Abstract
An experimental study on the ultimate load behavior of steel angle sections reinforced with carbon-fiber-reinforced polymer (CFRP) is described in this paper. An approach of transforming the open-angle section to a closed section is used with CFRP as a means to increase the flexural stiffness and strength. A total of 30 steel angle sections, both CFRP-reinforced and bare steel angle specimens, were tested in 4-point bending. The slenderness ratio (), different CFRP layers, and orientation of CFRP are the parameters included in this work. The failure behavior of CFRP-strengthened angle sections is closely studied for various wrapping configurations. The results indicate a significant increase in stiffness and strength of steel angle sections when appropriate reinforcement pattern and adequate number of CFRP layers are used.
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Acknowledgments
The first author would like to thank Uday B. Desai, Director, IIT Hyderabad, for providing funding through a seed grant that made this research possible. The second author would like to thank the Ministry of Human Resources Development (MHRD), Government of India, for providing financial support during “his graduate studies” at IIT Hyderabad. The authors would like to thank James S. Davidson, Auburn University, for a critical review of the manuscript.
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Information & Authors
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Published In
Journal of Composites for Construction
Volume 20 • Issue 1 • February 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Nov 18, 2014
Accepted: Mar 2, 2015
Published online: Apr 8, 2015
Discussion open until: Sep 8, 2015
Published in print: Feb 1, 2016
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