Article 3.2.1: the fire resistance class of the plant and warehouse can be divided into one, two, three, four, the corresponding building components of the combustion performance and fire resistance limit, in addition to the provisions of this specification, should not be lower than the provisions of Table 3.2.1.
3.2.2 High-rise plant, A, B class plant fire-resistant pole should not be less than two, the building area is not greater than 300 m^2 of independent A, B single-story plant can be used in three fire-resistant buildings. 3.2.3 single, multi-storey C class plant and multi-storey D, E class plant fire resistance rating should not be less than three.
The use or generation of C liquid plant and have sparks, red-hot surfaces, open flames of Category D plant, the fire-resistance rating should not be less than two, when the construction area is not more than 500m^2 single-story C plant or construction area is not more than 1000m^2 single-story D plant, can be used in the third level fire-resistant grade building.
3.2.4 The use or storage of special valuable machines, instruments, instruments and other equipment or goods of the building, its fire resistance level should not be less than two.
3.2.5 The fire-resistance rating of the boiler room should not be less than two, when the coal-fired boiler room and the total evaporation of the boiler is not greater than 4t / h, can be used in three-level fire-resistant buildings.
3.2.6 Oil-immersed transformer room, high-voltage power distribution equipment room fire resistance level should not be less than two, other fire protection design should be in line with the current national standards, "Thermal Power Plant and Substation Design Fire Code" GB 50229 and other standards of the norms.
3.2.7 Elevated warehouses, high-rise warehouses, Class A warehouses, multi-storey Class B warehouses and multi-storey Class C warehouses storing combustible liquids should not have a fire-resistance rating lower than Grade II.
Single-story category B warehouse, single-story category C warehouse, multi-story storage of combustible solids category C warehouse and multi-story category D, E warehouse, its fire resistance rating should not be less than three.
3.2.8 Grain silos should not be less than two levels of fire resistance; two levels of fire-resistant grain silos can be used steel plate warehouse.
Grain bungalow silo fire resistance class should not be less than three; secondary fire resistance class of bulk grain bungalow silo can be used without fire protection of metal load-bearing components.
3.2.9 A, B class plant, A, B, C warehouses within the fire-resistant wall fire limit should be 4.0h.
3.2.10 a, two fire-resistant single-storey plant (warehouses) columns, the fire-resistant limit should not be less than 2.50h and 2.00h.
3.2.11 the use of automatic sprinkler system for the protection of the full first-class Fire-resistant grade single, multi-storey plant (warehouse) roof load-bearing components, its fire-resistant limit should not be less than 1.00h.
3.2.12 In addition to A, B warehouse and high-level warehouses, the first and second class fire-resistant building non-load-bearing external walls, when the use of non-combustible wall, its fire-resistant limit should not be less than 0.25h; when the use of incombustible wall, should not be less than 0.50h.
4 floors and 4 floors below the first and second class fire-resistant class D, E aboveground plant (warehouse) non-load-bearing external walls, when the use of non-combustible walls, the fire-resistant limit is not limited.
3.2.13 second-class fire-resistant class plant (warehouse) room partition walls, when the use of non-combustible walls, the fire-resistant limit should be increased by 0.25h.
3.2.14 second-class fire-resistant class multi-storey plant and multi-storey warehouses using pre-stressed reinforced concrete floor, the fire-resistant limit should not be less than 0.75h.
3.2.15 one, Second class fire-resistant class plant (warehouse) of the people on the flat roof, the fire-resistant limit of the roof panels should not be less than 1.50h and 1.00h.
3.2.16 first and second class fire-resistant class plant (warehouse) roof panels should be used non-combustible materials. Roof waterproofing layer should be used non-combustible, non-combustible materials, when the use of combustible fireproofing materials and laid in combustible, non-combustible insulation materials, waterproofing materials or combustible, non-combustible insulation materials should be used non-combustible materials as a protective layer.
3.2.17 building non-load-bearing external walls, room partition walls and roof panels, when the need to use metal sandwich panels, the core material should be non-combustible materials, and fire-resistant limit should be in line with the "building regulations" of the relevant provisions.
3.2.18 In addition to the provisions of this specification, in addition to the wooden columns weighing and walls of non-combustible materials, the fire-resistance rating should be determined by four.
3.1.19 Precast reinforced concrete members of the nodes of the exposed parts, fire protection measures should be taken, and the fire resistance limit of the nodes should not be lower than the fire resistance limit of the corresponding components.
5.1.2 Civilian buildings can be divided into one, two, three, four levels of fire resistance. In addition to the provisions of this specification, the corresponding components of different fire-resistant buildings should not be less than the corresponding components of the combustion performance and fire-resistant limit of the provisions of Table 5.1.2.
1 In addition to the provisions of this Code, unless otherwise specified, the wooden columns weighing and walls of non-combustible materials, the fire resistance level should be determined by four.
2 The fire resistance limit and combustion performance of residential building components can be implemented in accordance with the provisions of the current national standard "Residential Building Code" GB 50368.
5.1.3 Civilian buildings should be based on the height of the building, the use of function, importance and difficulty of fire fighting to determine the fire resistance level, and should be consistent with the following provisions: ? 1 underground, semi-underground buildings (rooms), a class of high-rise buildings should not be less than one level of fire resistance. ? 2 single-story, multi-story important public **** building and two types of high-rise building fire resistance rating should not be less than two.
5.1.4 Building height greater than 100m civil buildings, the fire-resistant limit of the floor should not be less than 2.00h.
One, two fire-resistant buildings of the upper flat roof, the fire-resistant limit of the roof panels should not be less than 1.50h and 1.00h.
5.1.5 One, two fire-resistant buildings should be used in the non-combustible material roof panels.
5.1.5 The first and second level of fire-resistant buildings shall use non-combustible materials.
Roof waterproofing layer should be non-combustible, flame retardant materials, when the use of combustible fireproofing materials and laid on combustible, combustible insulation materials, waterproofing materials or combustible, combustible insulation materials should be used non-combustible materials as a protective layer.
5.1.6 The partition wall of the room with combustion-refractory wall in the second class fire-resistant building, the fire-resistant limit should not be less than 0.75h; when the floor area of the room is not more than l00m^2, the partition wall of the room can be used with the fire-resistant limit of not less than 0.50h of the combustion-refractory wall or the fire-resistant limit is not less than 0.30h of the non-combustible wall.
Second-class fire-resistant multi-story residential buildings using prestressed reinforced concrete floor, the fire-resistant limit should not be less than 0.75h.
5.1.7 Non-load-bearing external walls, room partitions and roof panels in the building, when there is a need to use the metal sandwich panels, the core material should be non-combustible, and the fire-resistant limit should be in accordance with the provisions of this specification.
5.1.8 The use of non-combustible materials in the second level of fire-resistant buildings ceiling, the fire resistance limit is not limited.
Three levels of fire-resistant medical buildings, primary and secondary school buildings, buildings for the elderly and nurseries, kindergartens, children's rooms and children's playgrounds and other children's activities of the ceiling should be used non-combustible materials; when the use of refractory materials, the fire-resistant limit should not be less than 0.25h.
Two, three fire-resistant buildings in the foyer, walkway ceiling should be non-combustible materials.
5.1.9 Building prefabricated reinforced concrete components of the nodes exposed parts, fire protection measures should be taken, and the node of the fire resistance limit should not be lower than the corresponding components of the fire resistance limit.
3.0.2 Garage, garage fire-resistant grade is divided into three levels. All levels of fire-resistant building components of combustion performance and fire-resistant limit should not be lower than the provisions of Table 3.0.2.
Note: prefabricated reinforced concrete components of the nodes of the gap or metal load-bearing components of the exposed parts of the fire protection layer should be added, and its fire-resistant limit should not be lower than the corresponding components of this table.
3.0.3 The fire resistance level of underground garage, semi-underground garage and high-rise garage shall be Grade I.
3.0.4 The fire resistance level of underground garage shall be Grade II.
The fire-resistance level of the garage and garage for the transportation of goods of category A and B and the garage and garage of category I shall be one level. Ⅱ, Ⅲ type of car garage, repair garage fire resistance level should not be less than two. The fire-resistance level of the garage of Class Ⅳ should not be lower than Class III. Note: Class A, B items of fire hazard classification should be based on the current national standards, "Building Design and Fire Code" GB50016 provisions of the implementation.