How to install grid ceiling? Nowadays, enterprise office decoration pays special attention to the decoration effect. Even the ceiling can have many patterns. Grid ceiling is widely used in large offices, shopping malls, bars, waiting rooms, airports, subways and other places. How to install grid ceiling? What are the installation precautions of aluminum grid ceiling? The following Shanghai office decoration company to give you a detailed explanation.
I. installation process of grid ceiling in office decoration
1. Snap the line: use the level gauge to mark out the horizontal point on each corner of the room, pop up the level line, measure the level line from the level line to the design height of the ceiling, and pop up the level line along the wall with the pink line, which is the lower skin line of the ceiling grid. At the same time, according to the grid ceiling plan, the position of the main keel pop-up in the concrete roof. The main keel shall be divided from the center of the ceiling to both sides, with the maximum spacing of 1000mm, and the fixing points of suspenders shall be marked, and the spacing between fixing points of suspenders shall be 900mm ~ 1000mm. If the fixed points of beams and pipes are larger than the requirements of design and regulations, the fixed points of suspenders shall be added.
2. Fixed hanger rod: the expansion bolt is used to fix the hanger rod. The hanger rod of ф 6 can be used. Cold drawn steel bar and round steel bar can be used for suspender, but it should be straightened by machine when using round steel bar. One end of the suspender of grid ceiling is welded with L30 * 30 * 3 angle bar, and the other end can be threaded with a screw rod larger than 100 mm, or a finished screw rod can be purchased for welding. The prepared suspender should be antirust treated. The suspender should be fixed on the floor with expansion bolt, and the hole diameter should be slightly larger than the diameter of the expansion bolt.
3. Light steel keel installation: the light steel keel should be hung on the suspender. Generally, 38 light steel keel is adopted, with spacing of 900mm ~ 1000mm. The light steel keel shall be installed parallel to the long direction of the room, and the arch camber height shall be 1 / 200 ~ 1 / 300 of the room span. The cantilever section of light steel keel of grid ceiling shall not be greater than 300 mm, otherwise, suspender shall be added. Butt joint shall be adopted for the extension of main keel, and the butt joint of adjacent keel shall be staggered. The light steel keel should be basically leveled after hanging.
4. Installation of spring leaf: connect the light steel keel with suspender with the spacing of 900mm-1000mm, and then clamp the spring piece on the suspender.
5. Assembly of grid main and auxiliary bones: pre assemble the main and auxiliary bones of ceiling grid according to the requirements of design drawings.
6. Grid installation: put the pre installed grid ceiling into the main bone hole with a hook, connect the whole grid ceiling, and adjust it to the level.
II. Precautions for installation of aluminum grid ceiling in office decoration
1. Arch form and height of aluminum grid ceiling: the arch height can be about 1 / 200 of 8m column spacing.
2. Leveling of ceiling plane position: due to the large area of each layer, the vertical or parallel relationship between metal grid and mineral wool board, between suspended ceiling, between ceiling and wall and column must be well handled. In this regard, the relevant axis should be measured to the wall column elevation, and plastering should be made according to the datum line, so as to ensure that the wall surface is parallel to the axis and the two adjacent surfaces are perpendicular to each other. This is taken as the datum plane of the plane position of the ceiling.
3. The plane position of the fire sprinkler head should not coincide with the grid bar, and should be straight and straight in both directions. Therefore, a pedal bend greater than 900 can be made at the upper end of the fire sprinkler riser to fine tune the plane position of the sprinkler head.
4. Joint treatment between aluminum grid ceiling and wall column: l20mm * 20MM angle aluminum can be used to connect with square column, which can achieve the effect of coordination with the side keel of mineral wool board ceiling, and the connection with column can be closed by ￠ 35 stainless steel pipe ring.
5. Retention of equipment inspection hole: since all kinds of pipes in the aluminum grid ceiling are equipped with regulating valves, inspection holes must be reserved at corresponding positions, and the positions of inspection holes are not in vertical and horizontal lines, the following methods can be adopted: first cut the holes, then add angle aluminum around the holes (the angle aluminum is painted with the same color as the grid), and the lower skin of the angle aluminum is concave into the lower skin of the grid by 2mm After the adjustment and assembly of the grid strips after cutting holes, they are placed on the corner aluminum.