建筑防烟分区划分安全性研究

Smoke bay design in buildings

设置防烟分区是建筑防排烟的重要措施之一。同一防火分区,其防烟分区可有多种划分,为探讨安全性高且又能应对各种火灾可能性的合理化设计,该文基于火灾安全性分析原理,通过场模型的仿真计算方法,研究了典型建筑空间中防烟分区划分对火灾安全性的影响。研究结果表明:防烟分区划分应该与疏散出口的分布相匹配;过多疏散出口划归在一个防烟分区将导致安全性严重降低;各个防烟分区均匀分布疏散出口,则有助于适应火灾发生地点的不可预知性,确保任何火灾情况下的疏散安全性。

Smoke bays in buildings are an important measure of fire smoke control. One fire compartment can be divided into various smoke bays. To figure out the rational division way wish high safety, the influence of the smoke bay design on the fire safety was studied by using field model simulations to find the best method that ensures safety. The results show that smoke bays should be divided to match the evacuation exit distribution. The safety is seriously compromised if too many evacuation exits are connected to one smoke bay. The number of smoke bays should match the number of exits to improve fire safety.