In this study, the optimal performance based seismic retrofit method for fiber-reinforced polymer (FRP) jackets in existing reinforced concrete (RC) frames is presented. This optimal method minimizes the amount of FRP material while satisfying the constraints on the maximum inter-story drift, maximum strain of concrete, and shear failure prevention of columns. Both of shear reinforcement for preventing shear failure of columns and flexural reinforcement for improving the flexural capacity of columns are simultaneously considered. This method is applied to 3-story RC frame and the reinforced locations and the numbers of FRP reinforcement plies are obtained.

• 최세운(연세대학교 건축공학과 박사 후 연구원) | Choi, Se Woon
• 양재민(연세대학교 건축공학과 석사과정) | Yang, Jaemin
• 김유석(연세대학교 건축공학과 연구교수) | Kim, Yousok
• 박효선(연세대학교 건축공학과 박사 후 연구원) | Park, Hyo Seon Corresponding Author