Steel box suspension beam for multi-span suspension bridge

The utility model relates to a steel box suspension beam for a multi-span suspension bridge in a no-cable region. The utility model is characterized in that a support frame of the utility model is formed by that fixed support frames (1) are mutually connected in a butting mode through a slide track (4) for a steel box beam, and movable support frames (9); the slide track (4) for a steel box beam is fixed to the tops of the fixed support frames (1) and the movable support frames (3), a shifting support mechanism (8) rolls on the slide track (4) for a steel box beam, and a steel box beam (7) is fixedly connected with the shifting support mechanism (8); a traction system (2) is connected with the steel box beam (7) and the shifting support mechanism (8) in a transmission mode, and a loop wheel machine (6) carried on a cable is connected with the steel box beam (7) through a lifting rope; the bottom of the movable support frames (9) is provided with a flat car (10) for transportation, and the flat car (10) for transportation is connected with a slide track (11) for the movable support frames on a tamping foundation (12) in a rolling mode. The steel box suspension beam for a multi-span suspension bridge in a no-cable region has the advantage that construction difficulty and construction cost can be reduced, and the loop wheel machine carried on a cable, which is used for hoisting ordinary beam segments, is utilized for carrying out the anchorage and the hoisting of the beam segments in a no-cable region.