Single-time pouring forming construction device and method for bridge prestressed box girder

The invention provides a single-time pouring forming construction device and method for a bridge prestressed box girder, and belongs to the technical field of bridge construction.The single-time pouring forming construction device for the bridge prestressed box girder comprises a supporting assembly, a first moving assembly, a second moving assembly and an intermittent flow dividing assembly, and the supporting assembly comprises a supporting plate; a bottom plate is arranged on the supporting plate, side formworks which are symmetrical along the center line of the bottom plate are arranged on the bottom plate, an inner formwork is arranged between the two side formworks, a moving seat is arranged on one side of each side formwork, an arch frame is fixedly connected to the two moving seats, a rectangular hole is formed in the arch frame, and a pouring hopper is installed in the rectangular hole. According to the construction device, by arranging the first moving assembly, the side formworks can move in the op