In this study a hybrid safety barrier system consisting of steel rail and carbon fiber reinforced polymer (CFRP) post is considered. W hile CFRP post is selected for impact energy reflection due to its high strength, steel rail is selected for impact energy absorption due to its high ductility. A numerical model considering the elastoplastic behavior of steel is formulated to simulate the dynamic responses of the hybrid system subject to an impact load. A hybrid roadside guard rail system of steel rail and CFRP post is proposed and analyzed with a case study. The numerical model for the hybrid roadside guard rail system is used to find optimized design of the proposed hybrid system.

1. 서 론
2. 연 구 방 법
3. 사 례 연 구
4. 결 과 및 토 의
5. 결 론
감사의 글
References

• 김정중(세종대학교 건설환경공학과 겸임교수) | Kim, Jung Joong
• 김승억(세종대학교 건설환경공학과 교수) | Kim, Seung-Eock Corresponding author