某地下商场防火分区划分对人员安全疏散的影响研究

Study on the Effect of Fire Compartment on Evacuation

防火分区面积、人员疏散距离、疏散宽度等方面难以满足现有消防规范的要求是目前大型复杂建筑消防设计中经常遇到的问题。利用火灾安全工程学进行性能化分析是解决这类问题的一种方法。防火分区面积大小不仅会影响到烟气的控制效果,同时也会引起人员疏散距离和疏散宽度要求的变化。因此防火分区的划分应该和人员疏散结合起来综合优化考虑。本文主要针对一个地下商场的防火分区划分问题,进行了烟气运动和人员疏散的模拟计算,比较两种防火分区划分方法的优缺。

Large fire compartment, long evacuation distance and short evacuation width are hot topics in the fire design for complex buildings. The performance-based fire design is a method to analyze the relevant problems. The fire compartment will affect the smoke development and evacuation, and so the design of the fire compartment should be correlated with the occupant＇s safety. In this paper, the smoke movement and evacuation were simulated based on the different partitions of fire compartments in an underground store. The effect of two kinds of fire compartment on the smoke movement and human evacuation was analyzed.