Combined steel box girder structure

The utility model relates to the technical field of steel box girders, and particularly discloses a combined type steel box girder structure which comprises a bottom plate, two sets of web plates and a face plate, and the two sets of web plates are arranged between the bottom plate and the face plate. Clamping strips are connected to the bottoms of the webs and the tops of the bottom plates; a transverse partition plate is arranged between the two sets of web plates, a plurality of transverse strips A are connected to the sides, close to each other, of the two sets of web plates, a plurality of transverse strips B are connected to the top of the bottom plate, butt joint grooves A matched with the transverse strips A are formed in the side wall of the transverse partition plate, butt joint grooves B matched with the transverse strips B are formed in the bottom of the transverse partition plate, and a fixing part is connected to one side of the transverse partition plate. The bottom plate, the web plate, the tr