Simply supported beam movable formwork cast-in-place construction method for integrally hoisting reinforcement cage into formwork

The invention relates to the technical field of bridge reinforcement cage hoisting construction, in particular to a simply supported beam movable formwork cast-in-place construction method for integrally hoisting a reinforcement cage into a formwork, which comprises the following steps: S1, splicing a movable formwork above a poured box girder, S2, binding the reinforcement cage corresponding to the first section of box girder in the cast-in-place formwork, and pumping concrete for pouring, and S3, carrying out cast-in-place construction on the first section of box girder in the cast-in-place formwork. S4, the reinforcement cage jig frame is disengaged through the reinforcement cage binding frame, and the reinforcement cage jig frame serves as a balance weight; s5, the front supporting leg penetrates through the cast-in-place formwork and slides into the front auxiliary supporting leg, and the front supporting leg and the pier are anchored again; and S6, the bottom frame of the cast-in-place formwork is combi