Assembly type structure major structure

The utility model discloses an assembly type structure major structure relates to building engineering technical field. Assembly type structure major structure includes the isolated footing, the top of isolated footing is provided with an at least one deck supporting beam group and thin -walled cold -formed steel combination beam slab, and the top of a top layer supporting beam group is provided with room top frame structure, wherein: every layer supporting beam group is including a plurality of square tubular columns, square tubular columns's upper portion is provided with corbel, thin -walled cold -formed steel combination beam slab includes turn -up flute profile put more energy into structure roof beam, profiled sheet, reinforcing bar net and concrete slab, the tip that the structure roof beam was put more energy into to the turn -up flute profile is provided with the sleeve, the turn -up flute profile is put more energy into the structure roof beam and is included riser, first diaphragm and second diaphr