교량/토공 접속구간 충격 완화를 위한 보강레일의 설계에 관한 연구

초록

When a train is travelling along the bridge-approach joining area, dynamic behaviors of rail system and train are abruptly changed. The increasing impact force results in the reduced running stability of running train, damage of track components, and the increase of maintenance cost. The laying of additional rails except existing rails over the joining section may be a efficient method to reduce the impact loading. In this paper, a track/train interaction analytic method over the joining section is developed. Parametric studies for the support stiffness of track of bridge and embankment in each side, and for the type and length of reinforced rail are performed to obtain important design variables of the track with the reinforced rail track.