Laboratory test and finite element analyses of a prototype bridge beam
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Prototype beam, Four point bending, FE analysis, UHPSFRC, GFRP, CFRP, epoxy
at Chalmers University of Technology as a part of the feasibility study of a novel bridge concept, the i-bridge. The beam consisted of v-shaped glass-fibre reinforced polymer (GFRP) webs reinforced by a carbon-fibre reinforced polymer (CFRP) profile, with a deck plate made of GFRP in composite action with ultra-high-performance steel-fibre reinforced concrete (UHPSFRC). The FRP parts are jointed by means of epoxy adhesive, while the concrete is simply cast upon the specially roughened GFRP surface. The load test was done in four point bending and it confirmed the predicted structural behaviour from the finite element (FE) analyses. However, it was concluded that more testing will be needed in the forthcoming work before decisive recommendations about the design can be made. In addition, materials tests of the UHPSFRC have been conducted, both in tension and compression.
Norwegian Concrete Association, International Partner Access
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