Vertical temporary restraint device for pier top in bridge incremental launching construction period

The utility model discloses a pier top vertical temporary restraining device in a bridge incremental launching construction period, which comprises a vertical jacking mechanism arranged on the pier top of a pier, a steel cushion beam arranged on the vertical jacking mechanism and used for supporting a main beam and a coil wound on the steel cushion beam, and the steel cushion beam and the coil form an electromagnet structure. A first insulation pad is arranged between the bottom of the steel bearing beam and the top of the vertical jacking mechanism, and the steel bearing beam is detachably connected with the vertical jacking mechanism. The structure design is reasonable, the coincident parts of the upper surface of the steel bearing beam and the lower surface of the main beam can be attracted together through electromagnetic force by winding the coil around the steel bearing beam of an existing structure, then the main beam can be effectively prevented from overturning, the purpose of improving safety is ach