高层建筑典型房间及共享空间火灾温度场分布规律  

Fire Temperature Field Distribution of Typical Rooms and Shared Spaces of High-rise Buildings

作　　者：卫文彬 刘松涛[2,3] 刘文利[2] 

机构地区：[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]中国建筑科学研究院建筑防火研究所,北京100013 [3]住房和城乡建设部防灾研究中心,北京100013

出　　处：《河南科技大学学报（自然科学版）》2015年第5期68-72,8,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家科技支撑计划基金项目(2012BAJ07B01);中国建筑科学研究院自筹基金项目(20140111330730049)

摘　　要：基于高层建筑的空间布局和结构特性,分析了其可燃物荷载和火灾发展类型,并建立了热传递模型。以某高层建筑综合体的办公层为典型场所,运用火灾动态模拟软件,对高层建筑典型功能房间及共享空间火灾条件下的温度场分布进行了数值模拟分析。分析结果表明:在研究场所典型的可燃物分布条件下,办公室的火灾功率可在500 s内增长至14.27 MW,房间和共享空间温度分层明显,房间的最高温度可达到1250℃,回廊内最高温度可达165℃。The combustible load and fire development types were analyzed and heat transfer model was established based on the features of high-rise buildings. The offices of a high-rise building were taken as a special case. By using fire dynamics simulator numerical simulation,the temperature distribution of rooms and shared spaces was researched under the condition of spreading fire. The results show that the fire power of offices can rise up to 14. 27 MW in 500 s by analyzing the condition of the distribution of typical combustibles.There is an obvious stratification on the temperature of rooms and shared spaces. The room temperature can be up to about 1250 ℃. The temperature in the corridor can be up to about 165 ℃.

关 键 词：火灾 高层建筑 温度场 数值模拟 

分 类 号：TU998.1[建筑科学—市政工程]