by 6.1 firewall 6.1.1 firewall shall be directly set on the foundation of the building or load-bearing structures such as frame and beam.
The fire resistance limit of load-bearing structures such as frame and beam shall not be lower than that of firewall.
The firewall shall be separated from the floor base to the bottom base of beam, floor slab or roof slab.
When the fire resistance limit of roof bearing structure and roof slab of high-rise plant (warehouse) is less than 1.00h, and that of roof bearing structure and roof slab of other buildings is less than 0.50h, the firewall shall be more than 0.5m higher than the roof.
6.1.2 when the horizontal distance between the center line of the cross section of the firewall and the end face of the skylight is less than 4.0m, and the end face of the skylight is a combustible wall, measures shall be taken to prevent the spread of fire.
6.1.3 when the external wall of the building is a non combustible or combustible wall, the firewall shall protrude more than 0.4m from the outer surface of the wall, and the external walls on both sides of the firewall shall be non combustible walls with a width of no less than 2.0m, and its fire resistance limit shall not be lower than the fire resistance limit of the external wall.
When the external wall of the building is a non combustible wall, the firewall may not protrude from the outer surface of the wall, and the horizontal distance between the nearest edges of doors, windows and openings close to both sides of the firewall shall not be less than 2.0m; When taking measures to prevent the horizontal spread of fire, such as setting class B fire windows, the distance is unlimited.
6.1.4 the firewall in the building should not be set at the corner.
When it is necessary, the horizontal distance between the nearest edge of the door, window and opening on both sides of the inner corner should not be less than 4.0m; When taking measures to prevent the horizontal spread of fire, such as setting class B fire windows, the distance is unlimited.
6.1.5 doors, windows and openings shall not be set on the firewall.
If they are necessary, class a fire doors and windows that cannot be opened or can be automatically closed in case of fire shall be set.
The pipes of combustible gas and class A, B and C liquids are strictly prohibited to pass through the firewall.
No exhaust duct shall be set in the firewall.
6.1.6 except as specified in article 6.1.5 of this specification, other pipes shall not pass through the firewall.
When it is necessary to pass through, the gap between the wall and the pipe shall be tightly filled with fire blocking materials.
The pipe insulation materials passing through the firewall shall be non combustible materials; When the pipeline is made of non combustible and combustible materials, fire prevention measures shall be taken on the pipeline on both sides of the firewall.
6.1.7 the structure of the firewall shall be able to prevent the collapse of the firewall when the roof truss, beam and floor slab on either side of the firewall are damaged by fire.
6.2 building components and pipe shafts 6.2.1 the partition wall between the stage and the auditorium of theater and other buildings shall be a fire partition with a fire resistance limit of not less than 3.00h.
The partition wall between the upper part of the stage and the stuffy roof of the auditorium can adopt a fire-proof partition wall with a fire resistance limit of not less than 1.50h, and the door on the partition wall should adopt class B fire-proof door.
The lighting operation room and combustible storage room under the stage shall be separated from other parts by a fire partition with a fire resistance limit of not less than 2.00h.
The film projection room and film rolling room shall be separated from other parts by a fire partition with a fire resistance limit of not less than 1.50h, and fire separation measures shall be taken for observation holes and projection holes.
6.2.2 the operating room or operating department, delivery room, intensive care unit, room for valuable and precision medical equipment, storage room, laboratory, film room, etc.
in the medical building, children’s activity places and elderly care facilities such as nurseries, children’s rooms in kindergartens and children’s amusement halls attached to the building, The fire partition wall with fire resistance of not less than 2.00h and the floor slab with fire resistance of 1.00h shall be used to separate from other places or parts.
The doors and windows that must be set on the wall shall be class B fire doors and windows.
6.2.3 the following parts in the building shall be separated from other parts by fire partition with fire resistance limit of no less than 2.00h.
The doors and windows on the wall shall be class B fire doors and windows.
When it is really difficult, fire rolling shutter can be used, but it shall comply with the provisions of article 6.5.3 of this specification: 1 Class A and class B production sites and sites where class C liquid is used in buildings; 2.
Parts with open fire and high temperature in the plant; 3.
Rooms with different fire risk categories are arranged in class A, B and C plants (warehouses); 4.
Auxiliary warehouses in civil buildings and auxiliary rooms in the backstage of the theater; 5.
In addition to the kitchens in residential buildings, public kitchens in dormitories and apartment buildings and kitchens in other buildings; 6.
Motor garage attached to residential buildings.
6.2.4 the fire partition wall in the building shall be separated from the floor base to the bottom base of beam, floor slab or roof slab.
The wall between residential partition wall and unit shall be separated to the bottom base of beam, floor slab or roof slab, and the fire resistance limit of roof slab shall not be less than 0.50h.
6.2.5 unless otherwise specified in this specification, a solid wall with a height of not less than 1.2m or a fireproof cornice with a width of not less than 1.0m and a length of not less than the opening width shall be set between the upper and lower openings of the building exterior wall; When an automatic sprinkler system is set indoors, the height of the solid wall between the upper and lower openings shall not be less than 0.8m.
When it is really difficult to set a solid wall between the upper and lower openings, a fireproof glass wall can be set, but the fire resistance integrity of the fireproof glass wall of high-rise buildings shall not be less than 1.00h, and the fire resistance integrity of the fireproof glass wall of multi-storey buildings shall not be less than 0.50h.
The fire resistance integrity of the external window shall not be lower than that of the fireproof glass wall.
The wall width between adjacent openings on the outer wall of residential buildings shall not be less than 1.0m; When it is less than 1.0m, a partition plate protruding from the outer wall of not less than 0.6m shall be set between the openings.
The fire endurance and combustion performance of solid walls, fire cornices and partitions shall not be lower than the requirements of building exterior walls with corresponding fire resistance rating..
