CAJ | 학술논문

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 dB(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(P<0.05)，平均值在35 dB(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(P<0.05)，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 dB(A)和8.3 dB(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。
목적：：측정북경시모림가주택재안장격성창후실내조성수평적변화정황，평개격성창대교통조성적방공효과。방법：사용성급계대해주택량측거실(북사배측화교완측)재관폐격성창상태하적실내조성수평( LAeq )진행측정，여동시측정적실외조성수평진행대비，병차비교관폐화개계격성창시실내조성수평적차이。결과：해주택조향북사배실외적평균교통조성수평대우70 dB(A)，초과아국《성배경질량표준》(GB 3096-2008)중적상관규정。관폐격성창후，거실내조성수평현저강저(P<0.05)，평균치재35 dB(A)이하，부합아국대실내조성수평적규정표준。격성창적관폐화개계상태대실내조성수평유현저영향(P<0.05)，여개계격성창시비교，관폐격성창시사배측화교완측실내조성분별강저18.8 dB(A)화8.3 dB(A)，설명안장격성창대림가주택우기시조향교통간도측거실내적조성수평유현저적강저효과。결론：격성창대림가주택실내조성유교호적방공효과。
Objective:To evaluate the preventive effects of sound insulation windows on traffic noise. Methods:Indoor noise levels of the residential rooms ( on both the North 4 th ring road side and the cam-pus side) with closed sound insulation windows were measured using the sound level meter, and compari-sons with the simultaneously measured outdoor noise levels were made. In addition, differences of indoor noise levels between rooms with closed sound insulation windows and open sound insulation windows were also compared. Results:The average outdoor noise levels of the North 4th ring road was higher than 70 dB( A) , which exceeded the limitation stated in the “Environmental Quality Standard for Noise” ( GB 3096-2008) in our country. However, with the sound insulation windows closed, the indoor noise levels reduced significantly to the level under 35 dB(A) (P<0. 05), which complied with the indoor noise level standards in our country. The closed or open states of the sound insulation windows had significant influence on the indoor noise levels ( P<0 . 05 ) . Compared with the open state of the sound insulation window, when the sound insulation windows were closed, the indoor noise levels reduced 18. 8 dB(A) and 8. 3 dB(A) in residential rooms facing North 4th ring road side and campus side, respectively. The results indicated that installation of insulation windows had significant noise reduction effects on street residential buildings especially on the rooms facing major traffic roads. Conclusion:Installation of the sound insulation windows has significant preventive effects on indoor noise in the street residential building.