Do you need to set up a staircase
6.2.2.2 There shall be Class B fire doors in the stairway and shall be opened in the direction of evacuation.
6.2.2.3 The first floor of the staircase immediately after the main exit, the walkway and hall can be included in the staircase, the formation of the expansion of the closed staircase, but should be used fire safety doors and other fire measures and other walkways and rooms separated The
6.2.3 Unit-type residential evacuation stairs for each unit shall be accessible to the roof, and the evacuation stairway shall be set in accordance with the following:
6.2.3.1 Unidrocy stairwells are not to be closed at the 11th and 11th floor, but the doors to the stairwell shall be Class B fire doors and the staircases shall be connected to the external walls and shall be directly natural and natural ventilation.
6.2.3.2 Closed stairwells shall be provided for unitary dwellings of twelve and eighteen floors.
6.2.3.3 Blocks of non-smoking staircases shall be located in units of nineteenth and nineteenth floors.
6.2.4 Corridor-style houses below the 11th and 11th floors shall be enclosed in stairwells. Corridors with more than 11 floors shall be equipped with smoke staircase.
5.3.5 The following indoor shelters for public buildings should be enclosed by closed staircases (including the first floor to extend the closed staircase) or to evacuate the stairs:
1 hospital, nursing home ward;
2 hotels;
3 more than 2 storey shops and other staff-intensive public buildings;
4 set up a song and dance entertainment show entertainment venues and the building layer more than 2 layers of the building;
5 more than 5 other public buildings.
6.2.1 A class of buildings and buildings with a height of more than 32m in addition to the modular and corridor-style residences and tower-type houses shall be fitted with smoke staircase. The setting of the smoke staircase should meet the following requirements:
6.2.1.1 Stairway entrance should be located at the entrance, balcony or corridor.
6.2.1.2 the area of ??the front room, public buildings should not be less than 6.00m2, residential buildings should not be less than 4.50m2.
6.2.1.3 The doors in the front and staircase shall be Class B fire doors and shall be opened in the evacuation direction.
6.2.2 Podiums and second-class buildings with a height of not more than 32m in addition to modular and corridor-style residences shall be enclosed in stairwells. Closed stairwell settings should meet the following requirements:
6.2.2.1 Stairway should be made to the external walls and should be directly natural and natural ventilation, when not directly natural lighting and natural ventilation, should be set according to smoke staircase regulations.
Need to be closed staircase
Code for fire protection in building design
5.3.5 The following indoor shelters for public buildings should be enclosed by closed staircases (including the first floor to extend the closed staircase) or to evacuate the stairs:
1 hospital, nursing home ward;
2 hotels;
3 more than 2 storey shops and other staff-intensive public buildings;
4 set up a song and dance entertainment show entertainment venues and the building layer more than 2 layers of the building;
5 more than 5 other public buildings.
On the first floor is the high-level fire safety standards
