Performance Evaluation of Precast Posttensioned Concrete Multibeam Deck
Publication: Journal of Performance of Constructed Facilities
Volume 21, Issue 5
Abstract
An innovative bridge construction utilizing on-site posttensioned precast concrete beams that are compressed together with full depth grouted shear keys and transverse posttensioning is the subject of this paper. In particular, the performance of the shear keys with regard to load transfer and water tightness constitutes the main issues of investigation. This paper presents the results of a live load testing program and associated finite-element analysis results of the as-built bridge. Live truck load test results help provide insights on the lateral (transverse direction) load distribution characteristics among the interconnected beams. The measured lateral distribution of the applied truck load among adjacent beams showed that the load was transferred primarily to the beams close to the truck load position, validating the effectiveness of the shear key details in transporting loads.
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References
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 21 • Issue 5 • October 2007
Pages: 368 - 374
Copyright
© 2007 ASCE.
History
Received: Sep 12, 2005
Accepted: Feb 27, 2007
Published online: Oct 1, 2007
Published in print: Oct 2007
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