某美食城性能化防火设计研究

针对某美食城防火分区面积过大、疏散距离过长和钢结构防火保护的问题,提出了性能化防火设计。设定火灾场景,模拟各部分人员的疏散时间;以FDS软件模拟烟气运动,得到可用疏散时间,经过分析,各场景下均能安全疏散。采用经验公式计算和FDS模拟分析两种方法计算火灾环境中钢构件的温度,提出了钢结构的保护方案。

The Performance-based Fire Prevention Design with a Chinese Food Center

This paper offers a performance-based fire prevention design with a Chinese food center,which has a large area and long evacuation distance and a large-span steel frame.The time of the evacuation is computed based on the time of simulated scenes in every part and the practical time of evacuation is computed,which is reliable.The prevention planning is made about the steel frame based on the temperature gained through the experience curve and FDS simulation.