公共聚集场所防火设计中的火灾场景设计研究

在对公共聚集场所性能化防火设计的基础上,介绍火灾场景设计的内容和方法,通过对火灾荷载和火灾热释放速率的计算,得到火灾发展的变化情况和热释放速率曲线,进而构建适合公共聚集场所等大空间建筑的火灾设定模型。并应用该计算方法和模型对某超市进行火灾场景设定来确定该火灾场景的最大热释放速率,并对其火灾蔓延可能性进行讨论,为火灾危害性评估以及火灾探测和扑救系统的有效性评估提供依据。

Fire Scenario Design for Performance-based Fire Protection in Public Place

On the basis of performance-based fire protection design of public place,fire scenario design method and its contents were firstly introduced.Then,the fire growing process and heat release rate curve were obtained through the calculation of fire load and fire heat release rate.Based on it,a model for fire scenario design which was applicable to the design of performance-based fire protection of public buildings was established.With a supermarket as an example and according to the fire scenario design model,the maximal heat release rates of different fire scenario were determined and the possibility for fire spread was discussed,which provided the basis for the evaluation of fire risk and fire detecting system.