Fabricated floor structure for constructional engineering

A fabricated floor structure for constructional engineering belongs to the technical field of building structures and comprises two reinforcing meshes stacked up and down, a metal mesh plate is placed on the reinforcing meshes, transverse ribs are welded to the upper surface of the metal mesh plate in a penetrating mode in the length direction, and vertical ribs are welded to the upper surface of the metal mesh plate in a penetrating mode in the short direction. The transverse ribs and the vertical ribs are perpendicular to each other and are arranged in a latticed mode, the four corners of the reinforcing mesh are each provided with a hanging lug in a welded mode, and the hanging lugs penetrate out of the upper surface of the metal mesh plate. Concrete is poured outside the reinforcing mesh and the metal mesh plate to form a prefabricated plate, a circle of annular groove is formed in the edge of the prefabricated plate, and inclined grooves communicated with the annular groove are formed in the long side of