住宅建筑内火灾高温烟气流动规律试验研究  

Experimental Analysis of Building Space Constructions on Hot-smoke Flow in Residential Fire

作　　者：郭震[1,2] 袁迎曙[1,2] 

机构地区：[1]中国矿业大学力学与建筑工程学院,江苏徐州221116 [2]中国矿业大学江苏省土木工程环境灾变与结构可靠性重点实验室,江苏徐州221116

出　　处：《土木建筑与环境工程》2012年第4期149-156,共8页Journal of Civil,Architectural & Environment Engineering

基　　金：国家自然科学基金资助项目(50878207)

摘　　要：以住宅建筑火灾安全为研究背景,利用多室多层住宅建筑缩比模型,进行了空间构造形式对室内火灾升温及高温烟气流动影响的试验研究。重点考察了不同火源点情况下,各房间内部的升温模式和温度分布,间接分析了高温烟气流动的规律。试验结果表明,住宅建筑的枢纽空间构造形式、房间门上方垂壁及各房间的相对位置对室内高温烟气的流动具有较大的影响。室门上方垂壁能够有效阻止高温烟气的扩散,室内外温差要高于无垂壁房间;非起火房间的室门开启方向与起火房间相对时,高温烟气的进入量要高于两者开口同向或平行情况。Based on the characteristics of spatial structure of residential units,the effect of building space construction on temperature raise and hot-smoke flow in residential fire was analyzed on building model with simulating multiple floors and rooms.The raise and distribution of temperature indoors were mainly tested under varied location of fire sources.And,the rule of smoke flow was discussed by using the law of temperature raise,indirectly.The results indicate that the mode of smoke flows is influenced by three spatial factors which include the form of junction terminal room construction;the height of down stand above the door and the relative locations of each room.The diffusion of hot smoke is prevented effectively by the down stand of the room;the temperature difference between indoor and outdoor should be higher than that of the room without down stand.When the open direction of door in non-fire room is opposite to that of the door in fire room,there is much more hot smoke.

关 键 词：住宅建筑 建筑火灾 火灾温度 烟气流动 空间构造形式 

分 类 号：TU241.7[建筑科学—建筑设计及理论]