(1) elastic line positioning
According to the design drawings, combined with the specific situation, the keel and lifting point position will be played to the bottom of the floor. If the ceiling design requires a certain shape or pattern, the symmetry axis of the ceiling should be popped up first, and the keel and lifting points should be symmetrically arranged. The distance between keel and suspender and the distance between main keel are important factors affecting the height of suspended ceiling. Different keel sections and lifting point spacing may affect the distance between main keels. The spacing between various ceilings, keels and suspenders is generally controlled within 1.0- 1.2m, and the elastic line should be clear and accurate. Aluminum alloy plate ceiling, if the slats are stuck on the keel, the keel should be perpendicular to the plate; If it is fixed with screws, it depends on the shape and design requirements of the board.
(2) Determine the ceiling elevation
Play the design elevation line to the surrounding wall or cylinder; If the ceiling has different elevations, the position of the variable section should be bounced to the floor. Then angle aluminum or other sealing materials are fixed on the wall or cylinder, and the bottom surface of the sealing material coincides with the elevation line. Commonly used angle aluminum specification is 25mm? X25mm, the corner aluminum of aluminum alloy plate ceiling should be consistent with the color of the plate. Angle aluminum is generally fixed with high-strength cement nails, and can also be fixed with nails.
(3) Fixation of derrick or galvanized iron wire
Fixed with one end of the structure, the common method is to use nail gun (also known as stone gun) to fix the suspender or galvanized iron wire. You can choose two nail specifications: perforated and non-perforated at the tail. If angle steel and other materials are used as suspenders, the keel is mostly made of ordinary steel, the expansion bolt is fixed with an impact drill, and then the suspender is welded on the bolt. Derrick and keel can be fixed by welding or drilling holes with bolts.
(4) Installation and leveling of keel
During installation, according to the determined position of the main keel (large keel) and the determined elevation line, roughly put it in place first. Secondary keels (small and medium keels) should be installed near the main keels. After the keel is in place, fully pull the vertical and horizontal control elevation line (cross center line), start from one end, adjust while installing, and finally fine-tune it again until the keel is leveled and straightened. If the area is large, the middle of the horizontal line should be arched appropriately. Pay attention to the adjustment from one end to the other, vertically and horizontally. Especially for aluminum alloy ceiling, the leveling and straightening of keel is a troublesome construction process. Whether the keel is leveled or not is also the key to the quality control of batten ceiling. Because only the keel is leveled, the lath veneer can achieve the ideal decorative effect, otherwise the wavy ceiling surface looks ugly as a whole. Nail the keel along the elevation line of the wall or cylinder. High-strength cement nails are commonly used when fixing, and the nail spacing should not be greater than 50cm. If the strength of the base material is low and the fastening force is not good, corresponding measures should be taken, such as using expansion bolts or increasing the length of nails. Generally, the side keel does not bear load, but only plays a sealing role. Connectors are generally selected for expansion. The connector can be aluminum alloy or galvanized steel plate, which is punched into barbs on its surface and connected with the square hole of the main keel. Fully correct the position and levelness of the main and secondary keels, and the connectors should be staggered.
(5) Install the ceiling board
When installing the ceiling board, the geometric size of the board should be adapted to the bearing capacity of the aluminum alloy keel ceiling. If the grid size is 600mm? x？ 900mm，600mm？ When x 1200mm, gypsum board cannot be installed, only mineral wool board can be installed.
Tubatu decorative net teaches you two kinds of keel construction technology: wooden keel ceiling construction technology and light steel keel ceiling construction technology.
Related reading:
Basic knowledge of purchasing keel
Classification of keel
How to distinguish the quality of keel
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