Fabricated multi-layer large-span bidirectional multi-span space steel grid box type structure building

The invention discloses a fabricated multi-layer large-span bidirectional multi-span space steel grid box type structure building. The fabricated multi-layer large-span bidirectional multi-span space steel grid box type structure building comprises two frame sets; each frame set comprises a first frame and a second frame, wherein the first frame and the second frame are movably connected through a hinge; a plurality of first inserting grooves are formed in the middle of the outer surface of one side of each first frame; the two sides of the outer surface of one side of each first frame are each provided with a thick threaded hole; two symmetrically-arranged first clamping grooves are formed in the middle of the outer surface of one side of each second frame; the two sides of the outer surface of one side of each second frame are each provided with a thin threaded hole; the two frame sets are fixed together through thick threaded pieces and thin threaded pieces; and a plurality of telescopic supporting mechani