Ballastless track variable cross-section transition plate structure on bridge

The embodiment of the utility model discloses a variable cross-section transition plate structure of a ballastless track on a bridge, which comprises a transition plate structure, blocking tables are arranged at two ends of the transition plate structure along the running direction of the track, the transition plate structure is provided with a plurality of steel bars, and the width of the blocking tables is smaller than that of the transition plate structure. Support mounting positions are arranged at the four corners of the bottom face of the transition plate structure, the thickness of the plate face where the support mounting positions are located in the running direction of a rail is smaller than that of the adjacent plate face, the formed transition plate is designed to be variable in cross section, the plate thickness of the support positions below the plate is reduced, supports are arranged at the four corners of the transition plate and close to the edges of the two sides, and the mounting height of