EXPERIMENTAL STUDY OF FRP-TO-CONCRETE INTERFACIAL BOND BEHAVIORS UNDER THE CONTROL OF A NOVEL END-ANCHORAGE SYSTEM
The externally bonded FRP(EB-FRP)is widely used as an effective method for the strengthening and rehabilitation of concrete structures.However,the debonding of an FRP-concrete interface is the typical failure mode of an FRP-strengthened concrete structure,leading to a very low effective utilization of FRP material and an inductile failure of the structure.Though many methods have been proposed to control the premature debonding of FRP,they cannot change the intrinsic brittle failure of FRP-strengthened concrete structures.In this paper,a novel end-anchorage device was developed and installed at the ends of the FRP to restrict the premature debonding of the FRP.The end-anchorage device has a ductile behavior and by relying on the deformation of the device,the deformability of the strengthened structure and the maximum FRP stress during debonding can be improved to a large extent,thus a significant improvement on the structural load capacity and ductility can be realized.In this study,the effect of the end-anchorage system on the bond behavior of the FRP-concrete interface was experimentally studied.
end-anchorage device ductility FRP-concrete interface debonding
Y.W ZHOU X.L.CHEN L.L.SUI F.XING Y.F.WU
Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering,Shenzhen University,S RMIT University,Melbourne,Autralia
国际会议
新加坡
英文
1-5
2017-07-19（万方平台首次上网日期，不代表论文的发表时间）