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방호울타리 안전성능에 관한 충돌해석 연구

A Study on the Safety Performance of Roadside Barriers by Collision Analysis

  • 이영호 (한극건설기술연구원 인프라구조연구실) ;
  • 송재준 (한극건설기술연구원 인프라구조연구실) ;
  • 이상윤 (한극건설기술연구원 인프라구조연구실)
  • Lee, YounghHo (Structural Engineering Research Division, Korea Institute of Construction Technology) ;
  • Song, Jae-Joon (Structural Engineering Research Division, Korea Institute of Construction Technology) ;
  • Lee, Sang-Yoon (Structural Engineering Research Division, Korea Institute of Construction Technology)
  • 투고 : 2012.10.23
  • 심사 : 2012.11.08
  • 발행 : 2012.11.30

초록

도로 방호울타리는 차량의 이탈을 방지하는 시설로, 도로의 형태나 제한속도 등을 기준으로 하여 7 종류의 방호울타리를 규정하고 있다. 하지만, 최근 차량의 성능이 향상되면서 과적, 과속의 위험이 있고, 국내외 방호울타리 관련 차량사고를 보면 추락사고가 빈번하게 발생하고 있어, 현재의 방호울타리 설계충격도가 다소 부족한 것으로 나타나고 있다. 본 연구에서는 고속도로에 주로 적용하는 SB5 강재 방호울타리와 SB6 콘크리트 방호울타리의 차량방호 성능을 검증하기 위하여 차량충돌해석을 수행하여, 방호울타리의 파괴 및 차량전도 조건을 산출하였다.

Roadside barriers are facility for preventing cars from out of path, and 7 classes of barrier are prescribed in criteria of road grades and speed limit, etc. However, overload and overspeed are increased according to improvement of vehicle performance, and falling over frequently occur in vehicle accident related in barriers. Therefore, enhancement of the existing design criteria of roadside barriers is demanded. In this research, vehicle crash simulation was carried out, and the condition for fracture of roadside barriers and vehicle overturn was evaluated in order to verify the defence performance of the barriers, which are SB5 steel barrier and SB6 concrete barrier adapted mainly to highway.

키워드

참고문헌

  1. Ministry of Construction and Transportation, "Road safety facilities installation and management guide (Vehicles protection safety facilities part)", Seoul, Korea, 2001.
  2. National Police Agency, "Traffic accident statistics", Seoul, Korea, 2006.
  3. LS-DYNA, "LS-DYNA User's Manual" Vol I, 2007.
  4. NCHRP, "Recommended prodedures for the safety performance evaluation of highway features", Report 350, 1993.
  5. S. K. Lee, "A study on development and stability of the steel bridge-barrier", KSCE, No. 47, Vol 9, pp. 37-44, 1999.

피인용 문헌

  1. Nonlinear Dynamic Performance and Safety Assessment of Guardrail Structrues for Roadside Considering a Simplified Tangent Modulus vol.9, pp.4, 2018, https://doi.org/10.11004/kosacs.2018.9.4.072