How to construct the ceiling decoration?

The suspended ceiling is generally composed of suspenders, skeletons and surfaces. 1. Hanger (1) Hanger is used to bear the load of ceiling and keel, and transfer this tea load to the load-bearing structure of the roof. (2) Boom material: steel bars are mostly used. 2. Skeleton A. The role of the skeleton: bear the load on the ceiling surface and transfer the load to the roof load-bearing structure through the suspenders. B. Skeleton materials: wooden keel frame, light steel keel frame, aluminum alloy keel frame, etc. C. Skeleton structure: it mainly includes a grid system consisting of main keel, secondary keel, joists, secondary joists and small shelving machines. T-shaped, U-shaped, LT-shaped and various special-shaped keels adopt light steel keels and aluminum alloy keels. 3. The surface layer A. The function of the surface layer is to decorate the indoor space, as well as sound absorption and reflection. B surface materials: gypsum board, fiberboard, plywood, calcium-plastic board, mineral wool sound absorbing, aluminum alloy and other metal plates, PVC plastic plate, etc. C. Surface course form: strip, rectangle, etc. (II) Construction technology of suspended ceiling (1) Light steel keel aluminum alloy keel suspended ceiling: elastic wire → installation of suspenders → installation of dragon skeleton → installation of panels. (2)PVC plastic ceiling: elastic line → installation of main girder → installation of wooden keel frame → installation of plastic board. (3) Key points of construction 1. First of all, the elevation line will pop up on the wall, and the pressing line will be fixed at both ends of the wall and fixed firmly with cement nails. According to the design elevation, the elastic line around the wall is taken as the baseline for ceiling installation, and the allowable horizontal deviation is 5 mm. When encountering the ceiling of open caisson, it should be fixed by layering from bottom to top, and the angle of yin and yang should be connected by layering. Pay attention to reserve the exit of lighting circuit. When the ceiling area is large, the keel should be laid in the middle. 3. The spacing of lifting points should be rechecked. Generally, the upper limit is 1200 ~ 1500mm, and the upper limit is 900 ~ 1200mm.