Multi-layer large-span hovering stair structure

The utility model discloses a multi-layer large-span hovering stair structure which comprises a set of corrugated modeling beams arranged in parallel, secondary rod piece beams connected between the adjacent corrugated modeling beams, bottom sealing plates connected to the bottoms of the corrugated modeling beams, platform plates connected to the horizontal positions of the tops of the corrugated modeling beams and step plates connected between the adjacent platform plates. The two ends of the corrugated modeling beam are connected to the main stress cantilever beam structures correspondingly. Through the design of the large-span hovering type staircase, the structure is easy to install and connect, the large-span hovering type staircase can be hung on the outer side of the structure, the staircase structure is not connected with the main body structure, the two ends of the staircase structure are connected with the overhanging structure of the main body structure, the structure is unique, the staircase is ar