Many existing RC Buildings were built before the seismic code was established, they need seismic retrofit performance. In this study, presents the evaluations of seismic performance and displacement ductility for two type RC Frames : existing RC frame without SRF(Super Reinforcement with Flexibility) and RC frames strengthened with SRF.

• 장극관((주)한국방재기술 기술연구원장, 공학박사) | Chang, Kug Kwan
• 서대원(도시건설방재기술원(주) 대표) | Seo, Dae Won Corresponding author
• 강민호(도시건설방재기술원(주) 부장, 공학석사) | Knag, Min Ho
• 김근재(도시건설방재기술원(주) 차장, 공학석사) | Kim, Geun Jae