UTC 2022 Funding - Cycle 3 Research Projects

Project No.: CY3-LSU-05
Title: Interfacial Shear Transfer for Concrete Elements with Non-Corrosive Composite Reinforcement
Performing Institution: Louisiana State University
Principal Investigator: Ayman M. Okeil, Louisiana State University
Start and Anticipated Completion Dates: 01/01/2026 to 01/15/2027
Abstract: This project will investigate a novel approach to enhance the dowel resistance of Glass Fiber Reinforced Polymer (GFRP) bars when used as shear reinforcement construction of concrete bridges. Fiber reinforced polymer is known to be resistant to corrosion with potential benefits in bridge construction. However, it has low dowel action resistance, which can jeopardize the integrity of the composite action between precast/prestressed concrete and cast-in-place bridge deck slabs, which can lead to failure of the bridge girder system. Improving the dowel action resistance of GFRP stirrups will eliminate a barrier to wider adoption of non-corrosive GFRP bars in bridge construction. The objective of this project is to explore a novel approach whereby GFRP dowels will be placed at an angle to the shear interface between the precast beam and the cast-in-place deck for enhancing the horizontal shear resistance of fiber reinforced polymer dowels for the purpose of ensuring composite action in bridges built with non-corrosive reinforcement.  
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