古建筑性能化防火设计中火灾场景的设置

Setting of fire scenarios in performance-based fire safety design for ancient buildings

针对中国目前尚无古建筑的防火规范,提出了古建筑火灾场景设置中应注意的问题,特别是火灾蔓延问题。结合某古建筑的性能化设计,探讨了场景设置的原则和步骤,提出了火灾场景设计的完整步骤应包括:起火点位置的设定、热释放速率的确定和火灾蔓延特性分析。并着重分析了火灾的蔓延性,提出了古建筑火灾蔓延的2种途径。

China has no fire protection regualtion about the ancient buildings, and the research on this issue is limited in China. This paper proposes some very important issues in the setting of fire scenarios for ancient buildings, especially the spread of fire. It discusses the criterion and process of fire scenario setting. The integrity procedure of fire scenario setting includes the fire position set, the fire development curve set and the fire spread analysis. Two ways of the fire spread are proposed.