彩钢夹芯板房防火间距的模拟与试验验证

Simulation and Experimental Verification of Fire Safety Distance Between Color Steel Sandwich Panel Houses

依据既有试验数据,开展了聚苯乙烯彩钢夹芯板房防火间距的计算机模拟,并对模拟结果与试验结果进行比较,得到最大热辐射强度的平均相对误差为8.77%,最高温度的平均相对误差为7.71%,证明了模拟方法的正确性.在此基础上模拟分析了不同风速对板房火灾发展的影响,通过模拟结果回归整理获得了不同风速下板房组团防火间距的数学表达式,这些公式的相关性较好,可推广使用并作为板房防火间距设计计算的参考.

A computer simulation was carried out to study the fire safety distance between color steel polystyrene sandwich panel houses based on the existing experimental data. The comparison between the simulation and experimental results shows that, for the worst case, the average relative error of the maximum heat radiation intensity is 8. 77%, and the maximum temperature is 7. 71%, which verifies the simulation method. A subsequent simulation study focused on the effect of different wind speeds to the development of panel house fire based on the former mode, the fire safety distance formulas were obtained by the regression analysis. With good correlations, the formulas can be promoted and they can be further used as a reference for the design and the calculation of the fire safety distance between sandwich panel houses.