In this study, computer simulation was conducted to evaluate the vulnerability of bridge columns under vehicle impact loading. Firstly, the Preliminary Risk Analysis was conducted to determine if the next step is necessary. In the next step, the Simplified Risk Analysis was conducted to determine the level of risk. According to SRA, if the bridge is confirmed in the category of high risk level, the bridge columns were classified into five types based on the slenderness ratios. Finally, using the five types of bridge columns, the deformation of bridge columns were predicted by conducted collision simulations.

Abstract
1. 서 론
2. 위험도분석 결과
3. 충돌해석결과
4. 결 론
참고문헌

• 김경진(한국해양대학교 토목환경공학과) | Kim Kyeongjin
• 김우석(충남대학교 토목공학과) | Kim WooSeok
• 정유석(충남대학교 건설방재연구소) | Jeong Yoseok
• 이재하(한국해양대학교 건설공학과) | Lee Jaeha 교신저자