DYNAMIC PERFORMANCE ANALYSES ON BIGH SPEED RAILWAY BRIDGE-SUBGRADE TRANSITION

With the dynamic theory of the interaction of vehicle and track, the itfluence of the irregularities of the bridge-subgrade transition on high speed running vehicle is analyzed in this paper. It is shown that the track bending resulting from the settlement difference between bridge and subgrade is the main factor that influences the running safety and comfortization of high speed train.