Maximum Dynamic-Load Allowance of Bridge with GFRP-Reinforced Concrete Deck
Publication: Journal of Performance of Constructed Facilities
Volume 30, Issue 3
Abstract
The 26.87-m, single-span Beaver Creek Bridge on U.S. Highway 6 in Utah was built in 2009. Elements of the bridge included AASHTO Type IV prestressed concrete girders and posttensioned, full-depth, precast concrete deck panels reinforced with glass fiber reinforced polymer (GFRP) bars. The bridge was given three static and five dynamic truck load–controlled tests before it was opened to traffic. Vertical acceleration data was also collected from random truck traffic. Dynamic truck load data was used to verify a finite element model and obtain dynamic load allowance (DLA) values. DLA was determined to be a function of the number of axles, axle group weight, and axle spacing. The maximum DLA for the bridge with a GFRP-reinforced concrete deck was found to be less than the value specified in the AASHTP LRFD Bridge Design Specifications.
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Acknowledgments
The authors acknowledge the financial assistance of the Utah Department of Transportation. Rebecca Nix of the Utah Department of Transportation and Mike Adams of Campbell Scientific made significant contributions in the success of the research project. Additional thanks are due to the students, faculty, and staff of the University of Utah Civil and Environmental Engineering Department, especially Professor Richard J. Porter, Jim Ries, and Mark Bryant.
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Published In
Journal of Performance of Constructed Facilities
Volume 30 • Issue 3 • June 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Sep 1, 2014
Accepted: May 15, 2015
Published online: Jul 14, 2015
Discussion open until: Dec 14, 2015
Published in print: Jun 1, 2016
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