钢质防火门加强筋和铰链对耐火性能的影响  

The influence of steel fire door stiffeners and hinges on fire resistance

作　　者：刁晓亮 项凯 潘雁翀 常颖 DIAO Xiao-liang;XIANG Kai;PAN Yan-chong;CHANG Ying(Tianjin Fire Science and Technology Research Institute of MEM,Tianjin 300381,China;Hohhot Fire and Rescue Division,Inner Mongolia Hohhot 010000,China)

机构地区：[1]应急管理部天津消防研究所,天津300381 [2]呼和浩特市消防救援支队,内蒙古呼和浩特010000

出　　处：《消防科学与技术》2022年第2期206-209,共4页Fire Science and Technology

基　　金：应急管理部消防救援局重点攻关项目(2020XFZD02);应急管理部天津消防研究所基本科研业务费项目(2020SJ07)。

摘　　要：防火门耐火极限取决于其耐火隔热性和耐火完整性。钢质隔热防火门的耐火隔热性与门芯材料的导热系数和门扇厚度相关,而耐火完整性大都与防火门的结构设置相关。防火门的加强筋和铰链等结构设置不合理,会导致门扇变形过大,进而造成防火门耐火完整性的丧失。通过有限元方法对防火门耐火性能进行分析,并优化其加强筋和铰链的设置,可以降低防火门扇的变形,从而提高防火门的耐火性能。The fire resistance rating of fire door depends on its fire insulation and fire integrity. The fire insulation of the steel fire door are related to the thermal conductivity of the door core material and the thickness of the door leaf, while the fire integrity is mostly related to the structure of the fire door. Unreasonable arrangement of stiffeners, hinges and other structures of the fire door will lead to excessive deformation of the door leaf and loss of fire integrity of the fire door. By analyzing the fire resistance of fire door through finite element method and optimizing the setting of stiffener and hinge, the deformation of fire door leaf can be reduced and the fire resistance of fire door can be improved.

关 键 词：消防 防火门 耐火性能 有限元分析 

分 类 号：X937[环境科学与工程—安全科学] X932