Abstract
This project aimed at developing an innovative cost effective high-performance hybrid bridge deck structural system that utilizes the full advantage of the unique properties of Fibre Reinforced Polymer (FRP) composite materials and the distinctive properties of Ultra-High Performance Concrete (UHPC). The beam section consists of a pultruded Glass Fibre Reinforced Polymer (GFRP) hollow box reinforced with externally bonded unidirectional Steel-Reinforced Polymer (SRP) or Carbon Fibre Reinforced Polymer (CFRP) sheets on the bottom flange. A thin layer of UHPC was cast on top of the section to carry the compressive stresses. Composite action between the GFRP section and the UHPC slab was ensured through shear stud connectors and moistureinsensitive epoxy adhesive applied on the top flange of the GFRP section before casting the UHPC slab. The behaviour of this hybrid beam system was investigated experimentally and analytically.
Published Version
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