Flexural Behavior and Deformability of Fiber Reinforced Polymer Prestressed Concrete Beams
Publication: Journal of Composites for Construction
Volume 7, Issue 4
Abstract
After a brief review of the ductility and deformability indices currently used in the design of concrete beams reinforced or prestressed with steel or fiber reinforced polymer (FRP) tendons, a new definition of a deformability index (factor) for prestressed concrete beams is proposed. The new factor is defined in terms of both a deflection factor and a strength factor. The deflection factor is the ratio of the deflection at failure to the deflection at first cracking, while the strength factor is the ratio of the ultimate moment (or load) to the cracking moment (or load). The proposed deformability factor is verified not only by test results obtained by the writer, but also by other test results available in the literature and it appears to be a suitable measurement of the deformability of concrete beams prestressed with either FRP tendons or steel tendons.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 7 • Issue 4 • November 2003
Pages: 275 - 284
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Feb 28, 2002
Accepted: Aug 1, 2002
Published online: Oct 15, 2003
Published in print: Nov 2003
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