【作者】 张春阳；

【导师】 刁永发；

【作者基本信息】 东华大学 ， 供热、供燃气、通风与空调工程， 2011， 硕士

【摘要】 现在社会随着城市发展步伐的加快,特别是在一线城市可用的住房用地面积的日益减少,高层建筑层出不穷,为了缓解适用空间的不足,高层建筑都会设置地下室,地下室是一个使用功能很复杂的空间,这其中集中了水电,暖等相关的所有设备,通风空调大部分管线,特别是通风排烟管道,尺寸大,系统多,再加上车辆等易燃物品的堆放,带来的火灾隐患也相对升高。目前国内指导各种建筑防排烟设计的是各种规范,均为多年前编制。规范对地下室发生火灾后排烟的相关规定还不完善,存在不足之处。本文对国内外研究现状以及不同研究方法进行总结,总结出各种不同的研究方法的优缺点。选用Airpak软件作为模拟使用的软件,重点分析了改变排烟单元特性对地下室内烟气排出效果的影响。以盐城中央广场地下室机械排烟的工程背景为例,模拟发现,当适当增大风口间距和采用矩形风口代替正方形风口时,均有利于改善烟气控制效果。但是这个风口间距的扩大就意味着受火灾影响区域的会更大,故防排烟规范上有规定下风口离最远防烟分区边界有距离要求,对于风口间距的选择,在相关的防排烟设计中可以体现一个设计者设计理念及设计经验的标准。更多还原

【Abstract】 In contemporary society, with the accelerated pace of urban development, especially in the first-tier cities, the available housing land area is decreasing. High-rise building after another, in order to alleviating the shortage of space for high-rise buildings,it will be set to the basement. the basement is a very complex use of functional space, Which focused on the water and heating all the related equipment, ventilation and air conditioning most of the pipeline. Especially the ventilation exhaust pipe, large size, the system and more, pluing the stacking of vehicles and other combustible materials, fire hazards caused by relatively increased. At present the guidance of architectural design is smoke norms, which is compiled many years ago. Specification of the basement after the fire of the relevant provisions of the smoke is not perfect, that is inadequate.This paper summarizes the research situation and the different research methods, summarizes the various advantages and disadvantages of different research methods. Using Airpak software as simulations using the software, analyzed the changes in cell characteristics on effecting exhausting the basement smoke.Basement of Central Square in Yancheng engineering background as an example mechanical exhaust.It found that increasing the air when the proper spacing and square instead of rectangular air outlet when the smoke control are conducive to improved results. However, the expansion of the air space means that the fire-affected areas will be greater. Therefore, there are provisions on the specification smoke downwind from the smoke partition borders are the furthest distance requirements. Air space for the choice of smoke in the relevant design embodies the concept of a designer and design experience in the design standards.更多还原