地下疏散楼梯间防烟设计探讨
Discussion on smoke prevention design of underground evacuation staircases
摘要：
发生火灾时，地下疏散楼梯间可防止烟气和热空气进入楼梯间，是地下室人员疏散的重要通道。对地下疏散楼梯间的防烟设计进行了探讨,认为当具有良好的通风条件时，地下疏散楼梯间可以采用自然通风的防烟方式，并提出了改善通风条件的做法。
关键词：防烟设计,地下疏散楼梯间,自然通风,防烟方式,机械加压送风
Abstract：
In case of fire, the underground evacuation staircase can prevent smoke and hot air from entering the staircase, which is an important channel for evacuation in the basement. Discusses the smoke control design of the underground evacuation staircase. Thinks that the smoke control mode of natural ventilation can be adopted in the underground evacuation staircase when there are good ventilation conditions. Puts forward some measures to improve the ventilation conditions.
Keywords:smoke protection design, underground evacuation staircase, natural ventilation, smoke control method, mechanical pressurized air supply