大中庭地铁车站的防火系统分析

对大中庭地铁车站进行了定义和分类。介绍了上海地铁7号线花木路站防火系统设计,提出了与常规地铁车站不同的新型防排烟系统。采用性能化防火设计分析的方法,对大中庭车站的防火排烟系统、人员疏散设施等防火系统进行了模拟计算与分析。结果表明,通过在站厅顶部设置大中庭专用排烟控烟管道,在发生火灾时,可有效控制烟气扩散,为人员疏散提供"可接受的维生环境"。

A Study of Fire Protection System of Large Atrium Subway Station

The large atrium subway station is defined and classified in the paper. A new type smoke control system different from the routine subway station is put forward by introducing the fire protection system of Huamu Rd. Station of Shanghai Metro Line 7. The fire proofing and smoke extracting system, evacuation facilities are simulated and analyzed by using performance analysis method. The results show that smoke spread can be effectively controlled for the evacuation to provide ＂acceptable sustain life environment＂ by using the smoke exhausting control duct under the roof of large atrium, in case of fire.