Field Performance of the Fiber-Reinforced Polymer Deck of a Truss Bridge
Publication: Journal of Performance of Constructed Facilities
Volume 21, Issue 1
Abstract
The MD 24 Bridge over Deer Creek in Harford County, Md., was one of the projects chosen by the Federal Highway Administration’s Innovative Bridge Research and Construction Program for bridge deck replacement by fiber-reinforced polymer (FRP) composites. A thorough discussion is presented on Maryland State Highway Administration’s first bridge rehabilitation project utilizing a FRP deck. The discussion includes design details, installation procedure, construction methods and in situ load testing with a wireless monitoring system. The research team installed a monitoring system to record the effects of live loads on the bridge system, including truss members, steel stringers, and plate action of the FRP deck. Finite-element models were also used in this phase. Dynamic effects of the FRP system, composite action between steel stringers and the FRP deck as well as the effective width and distribution factors of stringers were obtained and compared with the AASHTO specifications. Recommendations are also offered on improving the design details based on this experience.
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Acknowledgments
This work was sponsored by FHwA of the U.S. DOT and Maryland State DOT through FHwA’s Innovative Bridge Research and Construction (IBRC) Program. Thanks go to William Wright and Glenn Washer of Turner-Fairbank Highway Research Center (TFHRC), FHwA for loaning the Invocon wireless structural monitoring system and to Ronald Nelson, also of TFHRC, for his expert help on the strain gauge installations. Thanks also are due to Glenn Vaughan and Jock Freedman, of Maryland State DOT, for their advice and support.
References
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 21 • Issue 1 • February 2007
Pages: 53 - 60
Copyright
© 2007 ASCE.
History
Received: Jun 13, 2005
Accepted: Feb 7, 2006
Published online: Feb 1, 2007
Published in print: Feb 2007
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