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Title |
Evaluation of the Protection Performance of SB4 Class Concrete Barrier with Anti-Glare Function
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Authors |
주봉철(Bongchul Joo) ; 홍기남(Kinam Hong) ; 윤정현(Junghyun Yun) ; 이재하(Jaeha Lee) ; 김정호(Jungho Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2021.25.1.93 |
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Keywords |
콘크리트 방호울타리; 중앙분리대; 현광방지; 충돌시험; LS-Dyna Concrete Barrier; Median; Anti-Glare; Collision Test; LS-Dyna |
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Abstract |
This paper describes the process of developing a concrete median barrier of SB4 grade with anti-glare function. The development section has a height and width of 1,270mm and 560mm, respectively. A wire mesh is placed in the center of the cross section to improve the protection performance. Collision analysis predicted that this section satisfies the strength and occupant protection performance, and that no damage to the barrier occurs. In the actual collision test, it was confirmed that this section satisfies the strength and occupant protection performance. However, damage was observed on two concrete barrier when the truck crashed. In order to improve the accuracy of the collision analysis of the concrete barrier in the future, it is considered that a study on the model development and continuous collision analysis method for domestic commercial vehicles should be carried out.
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