초록 close

The purpose of this study is to investigate the structural performance for reinforced concrete members strengthened by E.M.S(Epoxy Mortar including fiber Sheet) panel. The variables are the type of reinforcement(E.M.S panel, carbon fiber sheet), the amount of reinforcement(2, 4, 6 layers of carbon fiber sheet) and the condition of specimen before reinforcing(previous loading or not). Through the test, we examine about failure mode, load-displacement relationship, moment-curvature relationship, flexural strength, flexural stiffness and ductility with these variables.The results of this study are as follows : The specimens strengthened with E.M.S panel appeared a good flexural performance and the values of flexural strength were agreed with that of previous proposed equation. The specimens with CFS(Carbon Fiber Sheet) reinforcement showed bond failure at the interface of concrete and CFS before getting the expected strength. Therefore, we could obtain a good flexural performance and the proper bond performance between E.M.S panel and concrete members in E.M.S panel reinforcement.