摘要
某办公楼一层办公室受地下冷冻机房噪声干扰,经调查发现主要噪声为低频噪声,该噪声由地下一层冷冻机组和水泵振动通过管道和建筑结构传播及空气声传声所致,通过采取针对性的噪声控制措施,将办公室A计权声级降低约10 dB,低频100 Hz声压级降低约14 dB。
The offices on the ground floor of an office building suffered from the noise disturbance from the underground freezing machine room.After survey,it was found that the main noise disturbing people was low-frequency noise,which was caused by the vibration of freezing machine and water pump on the first basement floor and which was transferred through pipeline and building structure.Specific noise control measures were adopted to reduce the A-weighted sound pressure level in the office by about 10dB and the low-frequency of 100Hz sound pressure level by about 14dB.
作者
陈志刚
张三明
何海霞
CHEN Zhi-gang;ZHANG San-ming;HE Hai-xia(Zhejiang University,310058,Hangzhou,China)
出处
《建筑技术》
2021年第10期1197-1200,共4页
Architecture Technology
关键词
冷冻机房
低频噪声
隔振
隔声
freezing machine room
low-frequency noise
vibration isolation
sound isolation
