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本文研究分析了封闭式阳台的隔声特性,推导出了封闭式阳台隔声量的计算公式,并分别在稳态强噪声源附近和交通干线两侧的装置现埸进行了内外声级差测量和对比测量分析,测量结果与计算值吻合较好。由此得到结论:通常结构的封闭式阳台隔声效果在10dB以上,房间内可比阳台外低25～30dB。因此,即使在工业集中区和交通干线两侧,只要外环境噪声达到或接近国标,安装封闭式阳台可保证室内满足住宅安静标准。文中还讨论了提高封闭式阳台隔声效果的方法,阐述了封闭式阳台的优越性,认为这是一种很好的住宅隔声设施,值得推广。
This paper analyzes and analyzes the sound insulation characteristics of the enclosed balconies and deduces the calculation formula of the sound insulation volume of the enclosed balconies. The sound level difference between inside and outside is measured and compared between the steady-state noise sources and the devices on both sides of the traffic trunk Measurement and analysis, the measured results and calculated values agree well. It is concluded: the sound insulation structure of the enclosed balconies is usually above 10dB, and the room can be 25 ~ 30dB lower than the balconies. Therefore, even in the industrial concentration area and the traffic artery on both sides, as long as the ambient noise at or near the national standard, the installation of enclosed balconies to ensure indoor quiet to meet residential standards. The paper also discusses ways to improve the sound insulation effect of the enclosed balconies, elaborates the superiority of the balconies, which is considered as a good residential sound insulation facilities worthy of promotion.