Meshed and spliced multi-and-high-rise assembled type steel structure prestressing force central supporting system

The invention relates to a meshed and spliced multi-and-high-rise assembled type steel structure prestressing force central supporting system. The structural system is formed by assembling assembled type floors, assembled type supports and assembled type flange columns through bolts, the assembled type floors can be spliced to be a needed scale, and are spliced through bolts, and the whole-layer floors of a building are formed. Corrugated web steel channel beams are adopted by the assembled type floors, webs of two adjacent corrugated steel channel beams at the spliced positions of the adjacent assembled floors are in meshed abut joint, the corrugated web steel channel beams are assembled and connected at the webs through bolts, and the steel channel beams are in meshed shapes after being assembled. The anti-shear bearing capability of the assembled type steel channel beams is effectively improved. According to the steel structural system, industrialized production is achieved, quick assembling on site is achieved, meanwhile, the high-strength bolts are adopted to conduct on-site assembling, and environmental pollution caused by concrete pouring and welding of rolled steel is avoided.