Anti-deformation bridge steel structure

The utility model discloses an anti-deformation bridge steel structure which is characterized in that a central reinforcing rib is arranged in an outer pipe body, the central reinforcing rib comprises four longitudinal reinforcing rib plates, glue outlet holes, a central supporting pipe and inserting teeth, the central supporting pipe is arranged in the center of the inner part of the outer pipe body, and the four longitudinal reinforcing rib plates are distributed on the outer side of the central supporting pipe in a cross shape; one end of the outer side of each longitudinal reinforcing rib plate is provided with inserting teeth, the four inserting teeth are inserted into four inserting grooves formed in the inner wall of the outer pipe body in a sliding mode, a plurality of glue outlet holes are formed in the center reinforcing rib at equal intervals, a plurality of lateral reinforcing rib plates are arranged on the center reinforcing rib at equal intervals, and the outer pipe body is filled with structura