Fabricated steel-concrete composite beam floor structure

The invention discloses a fabricated steel-concrete composite beam floor structure which comprises a frame column, a profile steel main beam and a profile steel secondary beam, floor plates are laid on the profile steel main beam and the profile steel secondary beam, and a connecting plate is vertically arranged on a web of the profile steel main beam; one end of the floor cover plate is wrapped with angle steel; the floor cover plate is not in contact with the frame columns; the first floor cover plate and the profile steel main beam are connected through the first bolts, so that the combination effect of the profile steel main beam and the first floor is achieved, and the bending resistance and rigidity of the profile steel main beam are improved; the second floor cover plate and the third floor cover plate are connected with the section steel secondary beams through spot welding, and it is guaranteed that the floor cannot collapse under the earthquake effect; the third floor cover plate is in non-rigid con