Lifting of GFRP Precast Concrete Bridge Deck Panels
Publication: Journal of Performance of Constructed Facilities
Volume 29, Issue 3
Abstract
The Beaver Creek Bridge on U.S. Highway 6 is a single-span bridge and a pilot project for glass fiber–reinforced polymer (GFRP) precast bridge decks in Utah using accelerated bridge construction (ABC). The Utah Department of Transportation decided to evaluate GFRP bars as an alternative to steel bars for reinforcing the bridge deck. The precast concrete panels were 12.62-m long, 2.08-m wide, and 235-mm thick and were reinforced entirely with GFRP bars. The bridge deck panels were lifted from the underside at four points using steel cables inside steel tubes or nylon straps instead of embedded steel anchors. Two of the 24 panels used to construct the bridge deck were instrumented with strain gauges. Experimental strain measurements showed that the panels exhibited acceptable levels of strain that were below concrete cracking limits. By comparison, similar laboratory panels with identical thickness and reinforcement that were lifted with four embedded anchors from the panel top experienced cracks on the underside of the panels. A finite element model confirmed the experimental results by predicting that the bridge deck panels would not crack during four-point lifting from the underside.
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Acknowledgments
The authors would like to acknowledge the financial support of the Utah Department of Transportation. The authors would like to acknowledge the assistance of Rebecca Nix of UDOT, Mike Adams of Campbell Scientific, Professor Lawrence D. Reaveley and Mark Bryant of the University of Utah, and Dr. Ruifen Liu of the URS Corporation.
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 29 • Issue 3 • June 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Sep 19, 2013
Accepted: Dec 17, 2013
Published online: Dec 19, 2013
Discussion open until: Jan 11, 2015
Published in print: Jun 1, 2015
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