Upgrading Torsional Resistance of Reinforced Concrete Beams Using Fiber-Reinforced Polymer
Publication: Journal of Composites for Construction
Volume 6, Issue 4
Abstract
An experimental investigation is conducted on the improvement of the torsional resistance of reinforced concrete beams using fiber-reinforced polymer (FRP) fabric. A total of 11 beams were tested. Three beams were designated as control specimens and eight beams were strengthened by FRP wrapping of different configuration and then tested. Both glass and carbon fibers were used in the torsional resistance upgrade. Different wrapping designs were evaluated. The reinforced concrete beams were subjected to pure torsional moments. The load, twist angle of the beam, and strains were recorded. Improving the torsional resistance of reinforced concrete beams using FRP was demonstrated to be viable. The effectiveness of various wrapping configurations indicated that the fully wrapped beams performed better than using strips. The 45° orientation of the fibers ensures that the material is efficiently utilized.
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Information
Published In
Journal of Composites for Construction
Volume 6 • Issue 4 • November 2002
Pages: 257 - 263
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Mar 20, 2001
Accepted: Feb 13, 2002
Published online: Oct 15, 2002
Published in print: Nov 2002
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