【 Weak current college 】 building components in combustion performance and fire resistance overview---Power By 【 China power house network 】

Fire-rating of buildings is divided into four levels, their burning behaviour of the widget and fire resistance should not be lower than sheet 2.0.1 (this specification thereof). Note: ① to MU-bearing and non-burning material as the wall of the building, the fire resistance rating should be determined according to four levels. ② high industrial construction of precast reinforced concrete prefabricated structure whose node slots or metal-bearing components exposed parts of the node should be fire-resistant protective layer, it should not be lower than the limits are calculated in compliance with the provisions of the corresponding widget. ③ secondary fire resistance rating of the building, such as the use of non-suspended ceiling burning body, its fire resistance is not limited. ④ in secondary fire rating of the building, an area not exceeding 100m2 room partition, such as the implementation of the requirements of the table, you can have problems with the fire resistance is not lower than 0.3h non-combustion. ⑤ primary and secondary fire grade civil building evacuation walkways on each side of the wall, according to the provisions in this table have difficulties, you can use 0.75h non-burning body. ⑥ combustion behavior of building elements and fire resistance, can be determined according to Appendix II. 2 fire resistance rating of multilayer and senior industrial building memory on fuel, average weight of more than 200kg/m2 room, its beam, floor of fire resistance should be consistent with the level of fire resistance rating of calls, but is equipped with automatic fire extinguishing equipment, its beam, floor of fire resistance will continue to apply the requirements of the fire-resistant Grade II. Load bearing members for non-combustion in industrial buildings (a, b Treasury and senior Treasury), its non-bearing exterior walls for non-burning body, its fire resistance reduces to embarrass the burning body 0.25h, may reduce to 0.5h. 2 fire resistance rating of the floor (top floor of the industrial buildings), such as fire resistance have difficulty reaching 1h, reduces to 0.5h. On the secondary fire resistance rating of flat roof buildings, its fire resistance of roof panels should not be lower than 1h. 2 fire resistance rating building roofs where fire resistance is not lower than the load bearing members 0.5h have difficulties, you can use unprotected layers of metal components. But a, b, c liquid flame burns to the site, the fire protection measures should be taken. Building of the roof surface, not combustion should be used, but a fire resistance rating, L2, its not burning body roof base can be combustible roofing waterproofing layer. The following buildings or parts of the interior decoration, the use of non-burning material or difficult burning materials: Advanced hotel rooms and houses of public activities;
Second, Studio, Studio and audio-visual classrooms;
Third, the large, medium, electronic computer room.