Project 3.4: Testing, Monitoring, and Analysis of FRP Girder Bridge with Concrete Deck

Project Abstract:

Based on successful testing and supporting research conducted by UMaine on a new, hybrid FRP-concrete girder, a demonstration bridge using this technology in Hampden, Maine will be constructed in the 2020. This bridge has been designed in partnership with Advanced Infrastructure Technologies of Orono, Maine. Our prior experience indicates that first-time construction of a new bridge technology invariably brings to light construction challenges and highlights unanticipated design challenges. This project provides a one-time opportunity to monitor and assess performance of a novel in-service composite bridge. Data gathered from the testing, monitoring and advanced analyses proposed as part of this research will help drive acceptance of this novel FRP girder bridge system.

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Sponsors:
University Transportation Centers Program, Department of Transportation
University of Maine

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Implementation of Research Outcomes:
Researchers collected data to assess the performance of this novel technology that was previously patented by UMaine and implemented for the construction of the Grist Mill Bridge. As a result of the successful construction and good performance of the Grist Mill Bridge, three additional bridges are under contract for construction in ME, RI, and FL. The results of the performance assessment of this novel girder technology will be detailed in forthcoming reports and publications. Two conference presentations were given to external audiences on this technology in December of 2019.

Impacts and Benefits of Implementation:
The outcome of the research activities is the construction and assessment of an entirely new composite girder system on U.S. Route 1A in Hampden, Maine, resulting in significant reduction in both construction and long-term maintenance costs. This work was done in partnership with AIT Bridges, a UMaine spin-off company that licenses the technology from the university and designs and fabricates these girders, and the MaineDOT. The novel FRP composite tub girders are the first of their kind with an anticipated lifespan of 100 years with minimal maintenance. Researchers anticipate this technology will become a widely-implemented standard for girder bridge construction, providing state departments of transportation with a more durable, lower-maintenance alternative to steel and concrete girders.

Related Links:
https://www.aitbridges.com/technical-resources

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Downloadable Documents