Service Load Behavior of Concrete Members Prestressed with Unbonded Tendons
Publication: Journal of Structural Engineering
Volume 118, Issue 9
Abstract
The results of experimental and analytical investigation of the behavior of concrete members prestressed with unbonded tendons under static loading are described. In the experimental section, a total of 26 beam specimens are tested, and several parameters, including reinforcing index, partial prestressing ratio, member span‐to‐depth ratio, and type of load application, are investigated. In the following analysis a general method of section analysis of concrete members prestressed with unbonded tendons is developed and used to reproduce the experimentally observed service load stresses in the tensile reinforcement. Also, available methods proposed in the technical literature to predict the service load deflection of bonded prestressed and partially prestressed concrete members are generalized to account for the slip of prestressing steel in unbonded posttensioned members and then compared with the current experimental results.
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Information & Authors
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Published In
Journal of Structural Engineering
Volume 118 • Issue 9 • September 1992
Pages: 2569 - 2589
Copyright
Copyright © 1992 ASCE.
History
Published online: Sep 1, 1992
Published in print: Sep 1992
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