木结构吊脚楼建筑群火灾蔓延特性研究

发布时间：2018-05-26 12:31

本文选题：木结构吊脚楼 + 热解动力学　；参考：《中国矿业大学（北京）》2013年博士论文

【摘要】：木结构吊脚楼建筑群广泛分布在我国广西、湖南等地。木结构建筑火灾破坏巨大,严重威胁人们的生命和财产安全,是火灾研究领域的一个重要研究内容。本文通过调研构建了典型木结构吊脚楼建筑的结构模型,现场采集不同建筑年代木结构吊脚楼建筑材料,利用热重-差热分析仪研究其热解动力学行为,为木结构建筑火灾蔓延的计算机模拟提供必要参数。依据现场调研得到的木结构吊脚楼物理模型,对木结构吊脚楼建筑火灾动力学过程进行数值模拟,得到了火灾蔓延过程中建筑内部及建筑周围的温度与烟气分布。利用小尺寸的多火源自由燃烧实验对木结构建筑群火灾进行了实验模拟,研究了吊脚楼群所处坡度及防火间距对木结构建筑群火蔓延过程的影响,得到了火源燃尽时间及建筑周围的温度分布,为木结构吊脚楼建筑群火灾防治提供了必要的数据支撑。
[Abstract]:Wooden structure hanging floor buildings are widely distributed in Guangxi, Hunan and other places. The fire damage of wood structure buildings is a great threat to the safety of people's lives and property. It is an important research content in the field of fire research. In this paper, the structure model of typical wooden structure suspended building is constructed by investigation and research, and the materials of different building ages are collected on the spot, and the kinetic behavior of pyrolysis is studied by means of thermogravimetric differential thermal analyzer (TG-DTA). It provides the necessary parameters for the computer simulation of the fire spread of the wooden structure building. According to the physical model of wooden structure hoisting building, the dynamic process of wood structure hoisting building fire was simulated, and the temperature and smoke distribution in and around the building during the fire spread were obtained. The fire of wood structure building group was simulated by small size multi-source free combustion experiment, and the influence of slope and fire prevention distance on the fire spread process of wood structure building group was studied. The time of burning out of the fire source and the temperature distribution around the building are obtained, which provides the necessary data support for the fire prevention and control of the wooden structure hoisting building group.
【学位授予单位】：中国矿业大学（北京）
【学位级别】：博士
【学位授予年份】：2013
【分类号】：TU998.12

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