How to install aluminum alloy floor keel?

Process flow: 1. The first step of setting out: determine the elevation line, take the floor reference line as the starting point, measure the height of the ceiling (plus a layer of flatness) on the cultural (column) surface according to the design requirements, and draw the standard business line (as the lower leather line of the ceiling keel) at this point. Available level or water column method. The second part: Determine the positioning line of modeling: according to the design requirements, draw the specific positioning line of modeling on the top surface or cultural surface. 2. Before the wooden keel is assembled and hoisted, the wooden keel shall be assembled on the floor (ground), and the assembly area shall generally not exceed 10 floor. The method of keel assembly often adopts the method of biting Zen buckle assembly. Its specific practice: keel grooving, biting groove, glue groove, and fixing with nails. 3. Installation of lifting points Installation of lifting points and common expansion bolts and embedded parts for lifting points. The hanging bar can be steel bar, angle steel or square wood, and the hanging point and hanging bar can be connected by means of connection, binding, hook suspension, bolts or screws. 4. Fix the keel along the wall and punch holes above the elevation line with an impact drill. The hole is lined with wooden wedges, which are nailed to the wooden wedges along the wall keel. 5. Hoisting and fixing of the keel: hang the assembled wooden keel directly above the elevation line with iron wire, temporarily fix it, draw several parallel and diagonal lines along the ceiling elevation line with a stick rope or nylon line, take this as the standard, slowly move the keel to be flush with the elevation line, and then connect and fix it with steel hanger. Use the same method to fix the step crane keel and connect the upper and lower keels. 6. Leveling and arching of the keel After the connection of the whole keel is completed, pull out the diagonal reticle under the bottom of the ceiling to check and adjust the flatness of the ceiling. When the area is large, arch camber can be carried out, and the arch camber height is about 1/200~ 1/30007 of the room span. Install paper reinforced gypsum board. Nail the paper reinforced azurite board on the keel with self-tapping screws, and pay attention to the length of gypsum board when installing. Gypsum board should be installed in a free state and fixed from the center of the board to the periphery in turn, leaving a gap of 6mm between gypsum board and culture surface. The distance between the screw and the plate edge is 10- 15mm, and the nail spacing of self-tapping screws is not more than 200mm (optional 150- 170mm). After plate nailing is completed, plastering putty is used to fill the plate seams and nail holes, and seam paper tape or glass fiber mesh tape is used to repair the dry seams of solid materials. All caulking shall be carried out after the previous caulking putty is dried.