大型商业步行街的人员安全疏散案例研究

A case study on safety evacuation of large covered mall with common pedestrian area

商业步行街作为一种新型建筑,其人流量较大,电气线路错综复杂,严重威胁人员安全疏散。本文以某大型商业步行街为例,根据建筑特殊防火设计理念进行了分析,分别采用FDS模拟软件建立烟气流动模型,模拟不同火灾场景下的烟气流动情况,采用Building EXODUS软件对该建筑进行人员安全疏散模拟及计算,根据火灾发生时各层的温度、能见度、CO体积分数指标,为该大型商业步行街特殊防火设计提供了较为可靠的人员安全疏散数据。

As a new type of building,covered mall with common pedestrian area have caused serious hidden dangers to the safe evacuation of people due to the large flow of people and the intricate electrical environment.This paper takes a large covered mall with common pedestrian area as an example.According to the design concept of building performance-based fire protection,fire analysis is carried out.FDS simulation software is used to establish a smoke flow model to simulate the smoke flow in different fire scenarios,and the Building-Exodus software is used to simulate the safe evacuation of people.According to the temperature,visibility and CO concentration index of each floor when the fire occurs,it provides more reliable data for the safe evacuation of people in the large covered mall with common pedestrian area.