摘要
运用FDS火灾模拟软件,测量吊脚楼门窗洞口在火灾中的温度值,运用温度值进行热辐射强度计算,计算结果表明:热辐射强度随离门窗火源距离减小而增大,其增幅变化表现出两个特征:一是热辐射强度的增幅与门窗洞口温度无关,与辐射半径的大小有关,距门窗火源越远,增幅越小;二是热辐射强度增幅情况与门窗洞口面积呈现正相关。
The FDS fire simulation software is used to measure the temperature of the door and window openings of the stilted building in the fire,and the temperature is used to calculate the thermal radiation intensity.The calculation results show that:the thermal radiation intensity increases with the decrease of the distance from the fire source,and its increase shows two characteristics.First,the increase of the thermal radiation intensity is independent of the temperature of the door and window openings,but related to the size of the radiation radius.The farther from the fire source of the door and window,the smaller the increase;Second,the increase of thermal radiation intensity is positively related to the area of door and window openings.
作者
龚旭峰
叶雁冰
GONG Xufeng;YE Yanbing(Green Building Design and Research Center of Guangxi University of Science and Technology,Liuzhou 545006,China;School of Civil Engineering and Architecture,Guangxi University of Science and Technology,Liuzhou 545006,China)
出处
《四川建材》
2024年第9期229-232,共4页
Sichuan Building Materials
基金
国家自然科学基金:桂西北少数民族木构民居绿色更新中的防火问题研究(41962017)。
关键词
吊脚楼
FDS
热辐射
增幅
木结构
the Stilted building
FDS
thermal radiation
increase
wood structure
