某高铁站大空间出站层消防设计

以某高铁站出站厅为例,针对高铁站内大空间出站层用作地铁站人员疏散通道的消防设计方案展开研究。结合建筑特点,提出将人员疏散"准安全区"概念用于大空间出站层的方法,将出站层作为一个防火分区设计,出站厅和出站通道划分为不同的防烟分区,其中出站厅利用上站台楼梯口自然排烟,出站通道采用机械排烟的设计方法可以满足人员安全疏散的要求,但是必须保证出站通道机械排烟的有效性。

Fire protection design on large space station layer of a high-speed rail station

According to the station hall of a high-speed rail station,station layer was used as evacuation passageway.Combined with construction features,the concept of quasi-security zone was proposed,station layer can be designed as a fire compartment,station hall and passageway as separate smoke control zone.And,by the gateway of staircase up to the station natural smoke exhaust was used while mechanical smoke exhaust in station passageway in the case the mechanical smoke exhaust must be effective.