建筑防火通用规范（GB 55037-2022）第7.4.7条

除剧场、电影院、礼堂、体育馆外的其他公共建筑，疏散出口、疏散走道和疏散楼梯各自的总净宽度，应根据疏散人数和每100人所需最小疏散净宽度计算确定，并应符合下列规定：

1 疏散出口、疏散走道和疏散楼梯每100人所需最小疏散净宽度不应小于表7.4.7的规定值。

2 除不用作其他楼层人员疏散并直通室外地面的外门总净宽度，可按本层的疏散人数计算确定外，首层外门的总净宽度应按该建筑疏散人数最大一层的人数计算确定。

表7.4.7疏散出口、疏散走道和疏散楼梯每100人所需最小疏散净宽度（m/100人）

GeneralSpecification for Building Fire Protection (GB 55037-2022), Article 7.4.7

For other publicbuildings except theatres, cinemas, auditences and gymnasiums, the aggregateclear width of the evacuation exits, evacuation passageways and evacuationstairs shall be calculated and determined according to the number ofevacuations and the minimum evacuation clear width required for every 100 persons,and shall comply with the following provisions:

1. The minimumevacuation clear width required for every 100 persons of evacuation exits,evacuation passageways and evacuation stairs shall not be less than the valuespecified in Table 7.4.7.

2. Except for theouter door that is not used for evacuation of other floors and directly leadsto the outdoor ground, the total clear width of which can be calculatedaccording to the number of persons on this floor, the total clear width of theouter door on the first floor should be calculated according to the the numberof people on the floor with maximum evacuation number in the building.

Table 7.4.7 Minimumevacuation clear width (m/100 person) for every 100 persons of evacuationexits, evacuation passageways and evacuation stairs