Uniaxial compression test of steel plate bonded FRP sheet for rational repair and reinforcement of web in steel girder bridge

Abstract

This paper is a fundamental study on rational repair and reinforcement of webs in corroded steel girder bridges using Fiber Reinforced Plastic (FRP). Uniaxial compression test of steel plates bonded by various FRP sheets is carried out. The objective of this test is to select FRP sheets that have reinforcing effect following large deformation induced by buckling. Furthermore, a layer of polyurea putty is inserted between the steel plate and the FRP sheet and its effect is investigated. Finally, the method that predicts elastic buckling load of the steel plate with FRP is developed.