The second impact from the edge of cargo was found to be an crucial event causing large volume loss of concrete median barrier. Therefore, in order to improve local impact resistance of concrete median barrier during second impact, local model was developed and evaluations were conducted. Developed concrete median barrier showed the 125 kJ impact level based on conducted analysis.

Abstract
 1. 서 론
 2. 해석모델 개발
 3. 해석결과 및 고찰
 4. 결 론
 참고문헌

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