隔声窗对北京市某临街住宅室内噪声的防控效果

发布时间：2018-06-16 07:09

本文选题：噪声 + 交通　；参考：《北京大学学报(医学版)》2015年03期

【摘要】：目的:测定北京市某临街住宅在安装隔声窗后室内噪声水平的变化情况,评价隔声窗对交通噪声的防控效果。方法:使用声级计对该住宅两侧居室(北四环侧和校园侧)在关闭隔声窗状态下的室内噪声水平(LAeq)进行测定,与同时测定的室外噪声水平进行对比,并且比较关闭和开启隔声窗时室内噪声水平的差异。结果:该住宅朝向北四环室外的平均交通噪声水平大于70 d B(A),超过我国《声环境质量标准》(GB 3096-2008)中的相关规定。关闭隔声窗后,居室内噪声水平显著降低(P0.05),平均值在35 d B(A)以下,符合我国对室内噪声水平的规定标准。隔声窗的关闭和开启状态对室内噪声水平有显著影响(P0.05),与开启隔声窗时比较,关闭隔声窗时四环侧和校园侧室内噪声分别降低18.8 d B(A)和8.3 d B(A),说明安装隔声窗对临街住宅尤其是朝向交通干道侧居室内的噪声水平有显著的降低效果。结论:隔声窗对临街住宅室内噪声有较好的防控效果。
[Abstract]:Objective: to determine the change of indoor noise level after installing sound insulation windows in a residential building near the street in Beijing, and to evaluate the control effect of sound insulation windows on traffic noise. Methods: using sound level meter to measure the indoor noise level of the house (north fourth ring side and campus side) under the condition of closing the sound insulation window, and to compare the indoor noise level with the outdoor noise level measured at the same time. The difference of indoor noise level between closed window and open window is compared. Results: the average traffic noise level of the house outside the North fourth Ring Ring is greater than 70 dB An, which is higher than the relevant regulations of China's Standard for Sound Environment quality (GB3096-2008). After closing the sound insulation window, the noise level in the room was significantly reduced (P < 35 d), which was in line with the standard of indoor noise level in China. The closed and open state of the sound insulation window has a significant effect on the indoor noise level, which is compared with that when the sound insulation window is opened. The noise in the four ring side and campus side decreased 18.8 dB (A) and 8.3 d (B) when the sound window was closed, which indicated that the noise level in the house facing the street, especially towards the traffic main road, was significantly reduced by the installation of the soundproof window. Conclusion: the soundproof window has better control effect on the indoor noise of the residential building near the street.
【作者单位】：北京大学公共卫生学院劳动卫生与环境卫生学系;
【基金】：北京市优秀博士学位论文专项资金(20131000109) 北京大学公共卫生学院青年人才支持计划资助~~
【分类号】：R126.8

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