한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제27권1호
  • /
  • Pages.114-120
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  • 2017
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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공동주택 욕실 배수배관 자재 구성에 따른 양변기 배수소음 저감 특성

Characteristics of Reducing the Water-drainage Noise of Toilet-bowl According to the Composition of Water Drainage Piping Materials of the Bathrooms of Apartment Housing

  • Jeong, A-Yeong (Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Kyoung-woo (Korea Institute of Civil Engineering and Building Technology) ;
  • Shin, Hye-kyung (Korea Institute of Civil Engineering and Building Technology) ;
  • Yang, Kwan-seop (Korea Institute of Civil Engineering and Building Technology)
  • 투고 : 2016.11.29
  • 심사 : 2016.12.29
  • 발행 : 2017.02.20
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초록

Water supply and drainage noise in the bathroom is recognized as one of the main noises, along with the floor-impact sounds, in apartment housings. Recently, to solve such noise issues, a new construction method of installing the piping on the slab has been adopted. rather than the traditional method of penetrating the piping through the slab between the upper and the lower bathrooms. However, this new method has limitations due to high costs and constructional difficulties. Therefore, this study was conducted to develop noise reducing piping and elbows, where the noise can be reduced simply by replacing the existing pipings. The noise level was measured in a laboratory by installing the horizontal drainage piping (three types) and the elbows (three types) developed in this study. The results showed that the horizontal pipings reduced the noise level in LAmax by 0.3 dB(A)~1.0 dB(A), as compared to the existing pipings (VG2), indicating an insignificant noise reduction effect. The elbow reduced the noise level in LAmax by 5.5 dB(A) ~ 11.5 dB(A), as compared to the existing elbow (DRF elbow), with the result of reducing the noise level at all frequencies evenly. Consequently, it was shown that using the elbows is more effective in reducing the water-drainage noise from the toilet than using the horizontal pipings.

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참고문헌

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