Fabricated steel plate-concrete beam composite bridge structure and construction method thereof

The invention relates to a fabricated steel plate-concrete beam composite bridge structure and a construction method thereof. The fabricated steel plate-concrete beam composite bridge structure comprises a bridge superstructure, wherein a plurality of side-by-side concrete beams are arranged below the bridge superstructure, an embedded steel plate is arranged at the bottom of each concrete beam along the length direction of the concrete beam, a beam bottom steel plate is arranged below each embedded steel plate, and the concrete beams are connected by virtue of the beam bottom steel plates to form a closed section beam. The fabricated steel plate-concrete beam composite bridge structure is reasonable in structure stress and safe and reliable in structure, the height of a precast concrete beam is effectively reduced, construction is simple, and construction cost is reduced.