Wanxin Fire
First of all, draw the positioning line axis, and the measuring line of the positioning axis of the smoke-blocking wall must be parallel or perpendicular to the main axis of the main structure, so as to avoid conflicts between the construction of the smoke-blocking wall and the interior decoration construction, resulting in irregular yin and yang angles and non-parallel decorative surfaces and other defects. Then use a high-precision laser level, theodolite, and use a standard steel tape measure, weight, level ruler, etc. to check. Finally, install the upper fixing parts. After installation, check whether the fixing parts and expansion bolts are firm.
1. How to install the smoke barrier
1. The measuring line of the positioning axis of the smoke-blocking wall must be parallel or perpendicular to the main axis of the main structure, so as to avoid conflicts between the construction of the smoke-blocking wall and the interior decoration construction, resulting in defects such as non-square yin and yang angles and non-parallel decorative surfaces.
2. Use a high-precision laser level, theodolite, and use a standard steel tape measure, weight, level ruler, etc. to check. To ensure the vertical accuracy of the smoke baffle wall. It is required that the deviation of the upper and lower centerlines is less than 1 to 2mm.
3. Installation of the upper fixing parts: Pay attention to check the firmness of the fixing parts and expansion bolts. The quality of the selected fixing parts and expansion bolts must be reliable. .
2. Under what circumstances do you need to install a smoke barrier?
According to the fire prevention code for building design, each fire compartment is less than 500 square meters. When setting up the smoke-blocking wall, beams with a height greater than 500mm can be used as the smoke-blocking wall, and non-combustible or flame-retardant materials can also be used as fire-proof partitions. For the installation of the wall, please refer to the specification for the vertical wall of the smoke screen (GA533-2005).
According to the “Code for Fire Protection Design of High-Rise Civil Buildings”, in the aisles with smoke exhaust facilities and rooms with a clear height of no more than six meters, smoke-blocking vertical walls, partition walls or beams protruding from the ceiling not less than 0.50m should be used. Divide smoke-proof partitions.
In buildings without smoke prevention facilities, it is not necessary to use smoke-retaining vertical walls. When setting them, fire protection regulations must be strictly enforced. In case of fire, collect smoke to prevent spread of smoke. The minimum distance between the edge of the smoke-shielding wall and the surface of the building structure should be kept, and the distance should not be greater than 20mm.
3. Where do you need to set up a smoke barrier
1. The rooms in Category C factory buildings have an area greater than 300 square meters or corridors exceeding 40m.
2. Where the area is greater than 500 square meters and there is no natural formation (such as beams) to block the smoke, a smoke-blocking vertical wall needs to be installed.