中庭式拱顶多层地铁车站排烟系统设计及模拟分析

Design and simulation analysis of smoke exhaust system in multi-storey underground railway station with atrium vault

介绍了中庭式拱顶多层地铁车站的内部构造特征。在满足火灾疏散环境控制标准和提高排烟效率的前提下,通过计算分析,对车站排烟系统进行了简化。对简化后的排烟系统的排烟效果进行了模拟分析,结果表明,将中庭连通的上下2层作为1个空间进行排烟设计,能在6 min疏散时间内满足烟气控制要求。

Presents the internal structural characteristics of a multi-storey underground railway station with atrium vault.On the premise of meeting the fire evacuation environmental control standards and improving the smoke exhaust efficiency,simplifies the station smoke exhaust system through calculation and analysis.Simulates and analyses the smoke exhaust effect of the simplified smoke exhaust system,and the results show that the two floors connected by the atrium are used as a space for smoke exhaust design,which can meet the smoke control requirements within six minutes of evacuation time.