地下建筑防排烟系统设置问题探讨

On the Underground Building Smoke Control System

根据地下建筑安全出口少、密闭性好、通风条件差等建筑结构和形式的特殊性,结合地下建筑发生火灾阴燃时间长、燃烧速度慢,烟气、毒气量大、高热烟气蔓延迅速等特点,通过对地下建筑防排烟系统等消防设计、施工常见问题进行归纳、汇总,分析研究防排烟系统在设计和施工中存在的缺陷和不足,试研究、优化地下建筑防排烟系统设计方案和措施,切实发挥地下建筑防排烟设施的防灭火功效。

According to the features of the underground buildings,such as the less exits,tightness,poor ventilating conditions,as well as the duration of combustion,a large amount of gases,the quick spread of heat and smoke,this paper outlines the deficiencies of fire designs and constructions to improve a smoke control system.