What are the requirements for the door width of the refuge bay
According to Article 5.5.32 of the Code for Fire Protection Design of Buildings, for residential buildings with a building height of more than 54m, there should be a room that meets the following requirements: it should be set close to the external wall and should be equipped with an openable external window; The fire resistance limit of the inner and outer walls should not be less than 1.00h. The door of the room should be Class B fireproof door,
The fire resistance integrity of the external window should not be less than 1.00h.
The total net width of each door, emergency exit, evacuation walkway and evacuation staircase of the residential building shall be determined by calculation, and the net width of the door and emergency exit shall not be less than 0.90m, and the net width of the evacuation walkway, evacuation staircase and the first floor evacuation shall not be less than 1.10m. The clear width of the evacuation staircase with railings on one side of the residence with a building height of no more than 18m shall not be less than 1.0m.
Relevant requirements of Code for Fire Protection Design of Buildings:
1. For auditoriums, exhibition halls, multi-function halls, restaurants, business halls, etc. with no less than 2 evacuation doors or emergency exits in buildings of Class I and II fire resistance rating, the straight-line distance from any indoor point to the evacuation door or emergency exit shall not be more than 30m.
2. When the evacuation door cannot directly lead to the outdoor ground or the evacuation staircase, an evacuation corridor with a length of no more than 10m shall be used to lead to the nearest emergency exit. When the place is equipped with automatic sprinkler system, the safe evacuation distance from any indoor point to the near emergency exit can be increased by 25%.
3. The net width of the evacuation walkway in the auditorium shall not be less than 0.60 m for every 100 people, and shall not be less than 1.00 m; The clear width of side walkways should not be less than 0.80m.
