10mm钢化玻璃全尺寸火灾实验

Behavior of 10 mm Toughened Glass in Full-Scale Enclosure Fires

在ISO 9705标准燃烧室内,位于室中央,采用不同规模的油池火,对常用的厚10 mm钢化玻璃窗的火灾特性进行了全尺寸火灾实验研究,完成了8组实验.给出了包括热释放速率、热辐射通量、室内和玻璃附近气体温度分布、玻璃暴露表面温度、玻璃遮蔽表面温度、玻璃首次破裂时间和破裂模式等实验数据.分析了玻璃破裂与其表面温度分布等参数的关系,研究结果可为性能化防火设计中评估钢化玻璃发生破裂和失效提供参考.

The behavior of 10 mm-thick toughened glass exposed to fire was studied in ISO 9705 room. Eight full-scale enclosure fire tests, in which a glazing assembly exposed to different oil pan fires in the central position of the room, were conducted. The results presented include heat release rate, heat flux, enclosure and local gas temperature, exposed glass surface temperature, shaded glass surface temperature, time to first crack and crack pattem. The relationships between glass breakage and parameters like glass surface temperature distribution are analyzed. The data and conclusions can be used for estimating the occurrence of cracking and the failure of toughened glazing assembly in the performance-based fire prevention design.