FFU system keel installation process - air filter

1. CEILING GRID SYSTEM construction process ①, Baseline stakeout (X, Y, Z axis points) ②, Structural engineering component installation ③, T-GRID skeleton prefabrication planning and installation 2. Step 1: Baseline stakeout (X, Y , Z-axis point) Construction instructions: 1. According to the reference point of the building's horizontal height as a mark (this is the Z-axis), measure to the required height. 2. Then use the laser locator to scan the construction area according to the marking of the horizontal height, and set the marking of the laser scanning on the wall and the column, so as to facilitate the reference marking of other construction areas or the calibration of the laser positioning. 3. Refer to the design to locate the horizontal and vertical (X, Y axes) of the required application area and orientation of the FFU fan filter unit. 4. Then use the laser locator to scan the X and Y axes to set out the construction points, which must be matched with the raised floor, wall panels, etc. and other relevant engineering development basis. 5. The staked part of this datum point must be the original datum point jointly recognized by the owner, the staking unit, the ceiling, the wall panel, the raised floor, etc. related engineering units. 6. After the correctness of the reference point has been confirmed by the relevant units, when the X, Y, and Z axes develop outward, the gravity hammer (line hammer) must be used to suspend it and the original axis to determine the correctness. confirm. 3. Step 2: Installation of structural engineering components Construction instructions: 1. First, assemble and install the common hanger in the position. The method of assembling the common hanger must be approved by the owner before it can be installed on the structure. 2. First assemble the components of the boom (tooth rod, flange nut, ㄇ type fixing piece, level adjuster, diamond screw, etc.) into components in advance. (Figure 1 and Figure 2). 3. Install the assembled boom components on the pre-marked position on the common hanger or install them directly when setting out (as shown in Figure 3). 4. The length of the boom assembly must be implemented according to the ceiling height requirements of the design drawing, and pay attention to the suspension height position of the horizontal adjuster (as shown in Figure 4) to avoid repeated construction. 5. The nuts fixed on the common hanger must be fastened, and whether the ㄇ-type fixing piece is offset and the tooth rod is not vertical. 6. Then use the laser locator to scan whether the clear height of the lower end of the regulator in this area is too large, so as to avoid repeated construction. 7. After the boom components are installed on the common hanger, confirm again whether the lifting point is offset and the spacing is correct. 4. Step 3: T-GRID skeleton prefabrication planning and installation