Effect of Car-Crash at Edge Beam of U-Channel Bridge based on Korean Highway Bridge Specifications and AASHTO LRFD Bridge Design Specifications

도로교 설계기준 및 AASHTO LRFD 설계기준에 근거한 U-채널 교량측보의 차량충돌의 영향

U-Channel Bridge is effective bridge type, because its edge beam performs role of barrier and enables to reduce additional dead loads. Although it is effective to reduce additional dead loads, there is possibility of bridge collapse under impact load due to car crash. Also, edge beam must have ability to induce safe driving and prevent falling accidents. Therefore, it requires behavior analysis and property investigation through the vehicle impact crashing edge beam. This study presents method of structural analysis of U-channel bridge and investigates design specifications for the effect of the edge beam under the vehicle impact. Also, it carries out stability investigation of behavior of edge beam and slab, based on Korean Highway Bridge Design Specifications and AASHTO LRFD Bridge Design Specification.