全方向遮音性能の現場測定による木造住宅の遮音改善効果の検討 : 航空機騒音に対する防音設計の一資料
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This paper describes methods of the field measurement for the noise insulation of houses, the results of some experimental studies on the noise-reduction improvement and the designing method of the sound-proof construction for the wooden residence. It also describes the results of the application of a sound-proof ventilator which was manufactured for trial. In the study a wooden test residence is used. The sound-proof constructions such as external walls, partitions, windows and ceiling are varied by turns. And each noise-reduction effect is measured. As the sound-source of the field measurement, the octave-band noise is used. instead of aircraft-noise. From the results of the study, the followings are concluded. (1) The field measurement method, in which the octave-band noise is used as external sound-source, is available to know noise insulation characteristics of the residence against aircraft-noise. (2) It is necessary to do sound-proof works on each part of building elements, in order to make extensive improvements in noise insulation characteristics of the wooden residence. It is highly important to do them with using massive materials and stopping gaps closely. (3) When the treatment mentioned in (2) is done, the noise-reduction of the wooden residence in the frequency of 500Hz is 28〜31dB in case of double windows of aluminum sash. On the occasion of triple windows, that is 32dB. (4) When the sound-proof ventilator is installed in the house, the noise-reduction is more than 30dB. The ventilator hardly influences on the noise-insulation characteristics of the house. Moreover, examples of drawings of the sound-proof constructions are shown at the end of the paper.
- 社団法人日本建築学会の論文
- 1973-01-30
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