Project 3.16: CT bridge girder sections with precast decks and FRP girder-deck shear


CT Bridge Girder Sections with Precast Decks and FRP Girder-Deck ShearConnectors

Project 3.16

Project Summary

UMaine recently developed and commercialized, in partnership with AIT Bridges, a novel, fiber‐reinforced polymer (FRP) composite bridge girder. This project focuses on the assessment of the fiber‐reinforced polymer tub girder (CT girder) with precast concrete decks and new, FRP girder‐deck shear connectors. This will extend the application of this new bridge technology by modularizing construction and the additional use of composite materials. The new FRP shear connectors, when used with FRP rebar for the deck reinforcing, will completely eliminate steel and therefore all corrosion in the bridge superstructure. The project will also include the fatigue testing of a full‐scale girder, which has not been performed to‐date. This research project will employ both large‐scale and smaller‐scale experiments, and includes direct collaboration with the industrial partner who has licensed and is marketing the CT girder.

Principal Investigator

Dr. Bill Davids


University of Maine

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Office of the Assistant Secretary for Research and Technology, University Transportation Centers Program, Department of Transportation, University of Maine, AIT Bridges, MaineDOT.

Implementation of Research Outcomes:

This project has recently completed its research phase. Implementation of research outcomes will be reported upon as they occur.

Impacts and Benefits of Implementation:

This project has recently completed its research phase. Impacts and benefits of the research will be reported after the implementation phase.

Printable Project Information Sheet

December 2021 Quarterly Progress Report

March 2022 Quarterly Progress Report

June 2022 Quarterly Progress Report

September 2022 Quarterly Progress Report

Final Project Report