Experimental Study of Mechanical Behavior of Composite Cables for Prestress
Publication: Journal of Engineering Mechanics
Volume 121, Issue 6
Abstract
The introduction of Kevlar-based composite tendons in the building industry is a must because of their high resistance to corrosion. However, a knowledge of the mechanical and rheological properties of the composite tendon is necessary to understand its behavior under load and, particularly, its behavior in relaxation, which is the subject of this study. After a description of the materials used, the results of experimental tests (tension and relaxation) are presented. The tests were carried out on an entirely new and original apparatus designed specially for this purpose. Because it is inconceivable to experimentally study the relaxation phenomena over long periods of time (many years), use is made of the principle of time-temperature equivalence to simulate this type of behavior. In the end, the study is summed up by making a comparison between the mechanical and rheological properties of Kevlar and that of classical prestressing steel.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 121 • Issue 6 • June 1995
Pages: 709 - 716
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Jun 1, 1995
Published in print: Jun 1995
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