超高层建筑保温外墙砌块的耐火性能  

Fire resistance analysis of insulation exterior wall of super high-rise building

作　　者：冉令譞[1] 赵华利[1] 黄伟[1] 李希全[1] 王轶杰[1] 胡园[1] 

机构地区：[1]公安部天津消防研究所,天津300381

出　　处：《消防科学与技术》2013年第4期382-384,共3页Fire Science and Technology

摘　　要：按照国家标准GB/T 9978-2008对某保温砌块墙进行了耐火试验,得到不同情况下墙体背火面温度及墙体内部保温板温度。结果表明:在两种安装方式下,保温砌块隔热性和完整性均满足标准要求;试验1的砌块内部温度和背火面温度均高于试验II。因此,该砌块在应用于高层、超高层建筑时,宜让保温层远离受火面(即按照试验II设置),可有效推迟保温层的燃烧时间,使墙体表现出更好的耐火性能。The fire resistance test of the wall of the insulation ex terior materials in accordance with national standards GB/T 9978--2008 was done to get the temperature of back surface of wall and the inner temperature of wall in fire under different condition. The results showed that： The heat insulating prop- erty and integrity of insulation materials could fit the require- ment of the Code. The temperature of back surface and the in- ner temperature of insulation materials in experiment I was higher than that in experiment II. The insulation layer should be far from the fire when installing the building blocks at high- rise building, like experiment II, to delay the combustion of in- sulation layer and get better fire resistance of wall.

关 键 词：消防 高层建筑 外墙保温砌块 墙体耐火试验 

分 类 号：X913.4[环境科学与工程—安全科学] TU972.4[建筑科学—建筑设计及理论]