建筑隔声实验室通风与消声改造  

The Ventilation and Sound Attenuation Redesign for Building Acoustic Sound Insulation Lab

作　　者：苏宏兵[1] 燕翔[1] 张海亮[1] 秦佑国[1] 

机构地区：[1]清华大学建筑学院,北京100084

出　　处：《噪声与振动控制》2006年第3期61-63,80,共4页Noise and Vibration Control

摘　　要：为测量国家大剧院座椅下送风风口气流噪声声功率级,对已有的标准建筑隔声实验室的接收室进行改造,引入通风系统,同时进行消声处理。文章重点介绍在机械通风和不影响建筑隔声实验室原有的实验功能与结构的前提下如何对建筑隔声实验室进行改造以获得背景噪声低于15dB(A)的混响场实验环境。改造完成后,在风量为500m3/h和900m3/h下接收室的背景噪声分别为12.5dB(A)与12.8dB(A),优于预期设计值。完成改造后已在接收室内顺利完成国家大剧院座椅下送风风口气流噪声声功率级测量,取得满意的结果。The ventilation and sound attenuation system are introduced to the standard building acoustic sound insulation lab to meet the requirement of sound power level measure of chair outlet＇s airflow noise for China National Grand Theater. This paper shows how to redesign the building acoustic sound insulation lab without altering its function and structure to gain a reverberation environment of which the background noise level is lower than 15dB（A） when the ventilation system is working. The redesign result is better than expectation and the measure was already successfully finished in the redesigned lab.

关 键 词：声学 建筑隔声实验室 改造设计 通风 消声 

分 类 号：TU112.24[建筑科学—建筑理论]