In this study, experimental research was carried out to evaluate the structural performance of the reinforced concrete beam hybrid retrofitting with two materials(groove and embedding FRP rod, CFRP sheet) in existing reinforced concrete buildings.
Test results showed that the maximum load carrying capacity of retrofitted specimens(NER1, NER1B, NER1L) were increased by 1.11 ~ 1.22 times respectively in comparison with the standard specimen NBS.

• 하기주(경일대학교 건축학부 교수, 사)건설기술정책연구원 원장, 공학박사) | Ha, Gee Joo
• 강현욱(경일대학교 건축공학과 박사수료, 사)건설기술정책연구원 선임연구원) | Kang, Hyun Wook
• 하영주(코리아E&C(주) 대표) | Ha, Young Joo 교신저자