Supplementing structure of road and bridge bearing component

The utility model discloses a supplement structure of a road and bridge bearing component, which comprises a road and bridge bearing plate, angle steel is arranged on the road and bridge bearing plate, a lock hole is arranged on the side wall of the angle steel, a limit bolt is inserted into the lock hole, a first nut is sleeved on the limit bolt, and the first nut is used for abutting against the side wall of the angle steel. The limiting bolt is sleeved with a supplementing column, a supporting lug is arranged on the side wall of the supplementing column, and a butt joint hole is formed in the supporting lug; the road and bridge bearing plates are at least provided with more than two steel angles, series-connection pieces are arranged between the supplement columns on the two steel angles, and the series-connection pieces are connected with the butt-joint holes, so that it is expected that after the two road and bridge bearing plates are spliced, supporting units are welded to improve the stability, and the