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http://dx.doi.org/10.7734/COSEIK.2017.30.4.297

Evaluation of Impact Resistance for Concrete Median Barrier Depending on Vehicle Curb Weight, Concrete Cover Depth and Level of Deterioration  

Lee, Jaeha (Department of Civil Engineering, Korean Maritime and Ocean University)
Lee, Ilkeun (Expressway & Transportation Research Institute)
Jeong, Yoseok (Research Institute for Construction Disaster Prevention, Chungnam National University)
Kim, Kyeongjin (Department of Civil and Environmental Engineering, Korean Maritime and Ocean University)
Kim, WooSeok (Department of Civil Engineering, Chungnam National University)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.30, no.4, 2017 , pp. 297-306 More about this Journal
Abstract
The concrete median barrier used currently in South Korea was developed the impact level of SB5-B(270kJ). However, the impact level of SB6(420kJ) should be considered in many placed with the increased accident of heavy vehicles. In order to increase the impact resistance of newly developed concrete median barrier, the computer simulation was conducted before real field test. For the accurate behavior of concrete, the parameter, such as impact vehicle, concrete cover depth and deterioration, was important. In this paper, a parametric study was conducted depending on vehicle curb weight, concrete cover depth and level of deterioration. The impact resistance of concrete median barrier was severely changed depending on vehicle curb weight and concrete cover depth. Furthermore, the impact resistance of concrete median barrier was also decreased due to deterioration of concrete, therefore the repair and rehabilitation should be conducted for damaged concrete depending on deterioration level. Therefore, vehicle curb weight, cover depth of concrete structures and deterioration level of concrete should be carefully considered for conducting analysis of concrete structure to vehicle collision.
Keywords
concrete median barrier; deterioration; vehicle curb weight; impact resistance; concrete cover depth;
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Times Cited By KSCI : 2  (Citation Analysis)
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