Steel structure box girder bridge straight-line section bridge structure for PRT and construction method thereof

The invention provides a steel structure box girder bridge straight-line section bridge structure for PRT and a construction method thereof. The steel structure box girder bridge linear segment bridge structure comprises foundations, steel pipe columns, steel cover beams and a steel bridge deck, the foundations are arranged at intervals in the bridge direction of the bridge structure, the steel bridge deck comprises connecting modules and middle modules which are alternately arranged in the bridge direction, the bottoms of the connecting modules are fixedly connected to the upper sides of the steel cover beams, and the cross section of the steel bridge deck is E-shaped. The steel structure box girder bridge straight-line section bridge structure comprises a bottom box plate, three rib box girders transversely arranged along the bridge direction at intervals in a full-length mode and a connecting base set, and the connecting base set is arranged at the position, connected with a steel cover beam, of the lower