KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Analysis between Computer Simulation and Real-car Crash Test of Energy Absorption Facilities for Various Road Environments

다양한 환경에 적용 가능한 충격흡수시설의 시뮬레이션 분석 및 실물충돌시험 결과 분석

  • No, Min Hyung (Korea Institute of Civil Engineering and Building Technology) ;
  • Park, Jea Hong (Korea Institute of Civil Engineering and Building Technology) ;
  • Seo, Chang Won (Ceramic Eco-Business Road Safety Architecture Company, Technical Research Center) ;
  • Sung, Jung Gon (Korea Institute of Civil Engineering and Building Technology) ;
  • Yun, Duk Geun (Korea Institute of Civil Engineering and Building Technology)
  • 노민형 (한국건설기술연구원 도로교통연구본부) ;
  • 박재홍 (한국건설기술연구원 도로교통연구본부) ;
  • 서창원 (세라코(주) 기업부설연구소) ;
  • 성정곤 (한국건설기술연구원 도로교통연구본부) ;
  • 윤덕근 (한국건설기술연구원 도로교통연구본부)
  • Received : 2021.12.08
  • Accepted : 2022.02.14
  • Published : 2022.06.01
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Abstract

Energy absorption facilities installed on roads should follow the performance standards of the real-car crash test of 'Installation and Maintenance Guidelines for Roadside Safety Facilities'. However, due to different installation conditions, such as differing structure widths on roads, some energy absorption facilities do not provide adequate performance. In order to apply varied environments on roads, an energy absorption structure was designed in this study with 150 mm height and four layers of W-shape guardrail at 200 mm intervals, and the performance was verified using LS-DYNA computer simulation. Through a real-car crash test, the performance of the facility designed by LS-DYNA was tested and was found to meet the performance of the CC2 category for crash cushions. The conclusion of the comparison demonstrates that the simulation and the real-car crash tests are both significant.

도로안전시설 설치 및 관리 지침 차량방호 안전시설 편에서 충격흡수시설은 실물충돌시험을 통해 성능 기준을 만족하는 제품만을 현장에 설치하도록 하고 있다. 그러나 기존의 설치된 충격흡수시설의 경우 설치 환경에 따라 방호해야할 구조물과의 폭 차이로 인하여 방호성능을 발휘하지 못하는 문제점이 있다. 이에 본 연구에서는 다양한 환경에 적용하기 위하여 높이 150 mm의 W형 가드레일을 200 mm 간격으로 4단 배치하는 충격흡수시설을 LS-DYNA 컴퓨터 시뮬레이션을 이용하여 개발하고 실물충돌시험을 통하여 성능 기준을 검증하였다. 시뮬레이션을 통해 개발한 충격흡수시설이 CC2등급의 성능 기준을 만족한다는 것을 실물충돌시험으로 확인하였고 시뮬레이션 결과와 실물충돌시험 결과를 비교 분석하여 충돌 시뮬레이션의 결과가 유의미하다는 것을 확인하였다.

Keywords

Acknowledgement

본 연구는 국토교통부(국토교통과학기술진흥원)의 지원을 통해 수행되었음을 알려 드립니다(과제번호 21TBIP-C158651-02). 본 논문은 2021 CONVENTION 논문을 수정·보완하여 작성되었습니다.

References

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