증속시 곡선부 원심하중에 의한 고속철도 궤도구조시스템 거동연구

초록

According as tracks are twisted on running, wheel loads applied to outer rail are increased on curved track. Canting on tracks considering the balance cant allows to have permissible cant deficiency. The test bed area of Ho-Nam high railway is planed for 400km/h Speedup test, cant deficiency is expected to generate centrifugal load in the curve. Therefore, Korean design criteria recommend to increase maximum 20% of wheel load. This study shows that normalized wheel load variations are analyzed its stationary in inner and outer rail when centrifugal forces in outer rail of a curve are caused by curve radius, cant, velocity. Vertical wheel loads are reviewed on the behaviors of each structural element according to the increase of velocity.