[China Aluminum Network] Before installing the glass aluminum curtain wall, precise measurements and line marking are essential to ensure construction accuracy.
lt is more than just a soundproof booth. Filmbase Phone Silent Booth,Baking Spray Booth,Dry Type Spray Booth,High Quality Phone Silent Booth satisfies your need of creative space design.
lt is made of aviation aluminum, carbon composite panels,and tempered glassused for compartment of subway trains.Only one type of fasteners is used forassembling. Air in the booth is 100% refreshed in every three minutes.4000Knatural color lighting, suitable for 100-220V/50Hz and 12V-USB power supply.
Phone Silent Booth,Baking Spray Booth,Dry Type Spray Booth,High Quality Phone Silent Booth Shenzhen Filmbase Technology Co., Ltd. , https://www.globalfilmbase.com
First, it is crucial to thoroughly review the structural construction drawings provided by the client and the structural error measurement records from the civil construction contractor. This step helps identify any discrepancies early on and allows for necessary adjustments in the installation process.
Next, the civil construction contractor should provide reference crosshairs at each level. These crosshairs should be aligned with the vertical axis transmitted through each floor and the building's elevation baseline, ensuring a consistent reference point throughout the structure.
The next step involves measuring the overall height error of the structure. Using the original design’s vertical axis, the contractor will transfer the vertical holes layer by layer and establish an elevation reference point. A vertical instrument, plumb line, level, and theodolite are used to mark horizontal reference lines on each floor, ultimately determining the total height error of the building.
After that, the overall structural elevation is verified, and the total height error is evenly distributed across each floor. This ensures that each floor has an accurate baseline for further work.
Then, the cross-reference lines marked on each floor by the civil construction contractor are reviewed, and the final cross-reference lines for each level are clearly marked. This helps maintain consistency and alignment during the curtain wall installation.
Following this, all structural axes are measured and marked using the cross-reference lines and the dimensions specified in the structural construction notes. This includes identifying the north-south and east-west directions on a floor-by-floor basis.
The vertical deviation of each facade is measured based on the actual position of the building’s facade and the distance from the outer axis of the calibration line. This ensures that the curtain wall aligns correctly with the structure.
Based on the actual structural errors identified, the design department provides instructions to the installation team. This allows them to determine the exact size of the curtain wall surface, starting from the outer edge along the axis.
On-site measurement data, especially the coordinates of all vertices of complex geometric parts such as sharp corners and the top of the building, are shared with the design department. This data serves as a critical reference for theoretical calculations and adjustments.
Finally, a vertical and horizontal measurement control network is established using steel wires. Both ends of the control wires are connected to flange screws, and the wires are tightened using pre-installed flange screws on the main structure. The wire control network must remain in the same plane. It is important to assign someone to regularly inspect the network to prevent shifts. All inspection results should be properly documented for future reference.