The minimum net width of high-rise buildings/evacuation stairs (m), hospital ward buildings/1.30, residential buildings/1.10, other buildings/1.20.
"Fire Code for the Design of High-rise Civil Buildings," which provides the following Chapter 6:
The total width of the evacuation staircase should be calculated according to the number of people passing through it every 100 people is not less than 1.00 m. The levels When the number of people is not equal, the total width can be calculated in sections, the total width of the lower evacuation staircase should be calculated according to its upper level of the largest number of people. The minimum net width of the evacuation staircase should not be less than the provisions of Table 6.2.9.
The minimum net width of high-rise buildings/evacuation staircases (m), hospital ward buildings/1.30, residential buildings/1.10, other buildings/1.20.
Expanded Information: In addition to the evacuation width requirements for all types of buildings, the total height requirements for all types of civil buildings are as follows: 1. All types of civil buildings on the ground floor of the evacuation of the outer doors, evacuation aisles, evacuation stairs, safety exits of the total width of the respective should be calculated in accordance with the norms of the evacuation width indicators to determine. Stairs by the number of people on each floor to calculate the total width, the width of the stairs and the first floor of the staircase width and the first floor of the outer door (upper personnel also use) total width of the number of people on the upper floor of the most one floor calculation. The width of the upper staircase in underground buildings and the total width of the first outer door (also used by the upper part of the people) should be calculated according to the number of people on the floor below the maximum floor. 2. Theater class and gymnasium of all internal doors, external doors, staircases and aisles of the total width of the respective should be calculated according to the "Building Design and Fire Prevention Code" Table 5.3.16-1/2 of the hundreds of people to determine the target. The average number of people passing through each evacuation door of the auditorium of the theater type shall not exceed 250, and the average number of people passing through each door shall not exceed 400 for the part of the total number of people exceeding 2,000. Stadium auditorium each evacuation door average number of people passing through not more than 400-700 people. 3. Shops and other categories of people-intensive public **** place of all types of width should be "building design fire code" Table 5.3.17-1/2 and other provisions of the hundred people indicators and people and land indicators calculated and converted to determine. In particular: entertainment venues are located in the (semi) basement, the width of all types of not less than 1.0m / through 100 people. Reference: