Bridge curve flange template adjusting device and construction method

The invention relates to a bridge curve flange formwork adjusting device and a construction method. The bridge curve flange formwork adjusting device comprises a flange plate bottom formwork; the flange side die is placed on the flange plate bottom die; the adjusting mechanism is connected with the flange side mold, and the adjusting mechanism comprises a pipe body internally provided with an internal thread; one end of the lead screw is fixed to the flange side mold, the other end of the lead screw is installed in the pipe body, the lead screw can move in the pipe body in the axis direction of the lead screw, and the flange side mold is adjusted to be in curve fitting with a bridge. Due to the fact that the adjusting mechanism is installed on one side of the flange formwork, the flange formwork can be adjusted in a segmented mode, the adjusting mechanism adopts the mode that the lead screw rotates in and out of the pipe body, the adjusting mode is simple, easy to control and high in precision, and the flange