Prefabricated beam and slab construction device and method

The invention provides a precast beam and slab construction device and method, and relates to the technical field of bridge construction. A guide unit is mounted on the precast beam and slab maintenance support and used for improving the maintenance effect of the top of the precast beam and slab body; the number of the driving units is two, and the two driving units are installed on the precast beam and slab maintenance support. The number of the prefabricated beam and slab maintenance units is two, and the two prefabricated beam and slab maintenance units are installed on the two driving units. A shielding unit is arranged outside the precast beam and slab curing support and used for preserving moisture of a cured precast beam and slab body. According to the device, sprayed water is guided, so that the sprayed water can flow along the three groups of guide inclined plates, and the maintenance effect of the top of the precast beam and slab body is ensured; the problem that maintenance nozzles are usually arra