[关键词]
[摘要]
以杭州地铁1号线婺江路站为例,提出在车站公共区设置中庭时,针对防排烟系统设计采用在站厅层中庭上部四周的结构顶板下设置卷帘式挡烟垂壁,将中庭封闭成一个单独的防烟分区的方案。介绍车站公共区消防设计,包括防排烟系统,各防烟分区的排烟量计算、排烟风机的配置和排烟系统的运行模式等。通过理论计算及现场实测的方法,证明该方案在站台与中庭火灾工况时,连接站厅与站台的楼扶梯口部向下的风速满足规范要求。
[Key word]
[Abstract]
Wujianglu station of Hangzhou Metro Line 1 is studied as an example and it is proposed that a scroll smoke hanging wall was set around the atrium structure roof of the station hall layer to shut the atrium into a separate smoke partition. The theoretical calculation and actual testing method were combined to demonstrate that the speed of the wind formed between the station hall and the platform floor’s downwards stair or escalator met the specification requirements when a fire broke out on the platform and in the atrium.
[中图分类号]
U231.5
[基金项目]