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양관섭(Kwan-Seop Yang),신혜경(Hye-Kyung Shin),김경우(Kyoung-Woo Kim) 한국소음진동공학회 2021 한국소음진동공학회 논문집 Vol.31 No.1
This study aimed to suggest standards concerning apartment restroom noise, which is known to be the second most frequent noise complaint of residents, after floor-impact noise. To investigate the noise level, the restroom noise of 60 households has been measured from the restroom of the floor immediately below. The current standards are based on specification standards. However, to induce practical improvement, the standards need to be revised according to noise-level criteria. Based on the results of subjective response through laboratory assessment, a maximum noise level (L<SUB>max</SUB>) of 40 ㏈(A) was analyzed to be an appropriate criterion for restroom noise. However, considering both the measurement results and the subjective response, it seems to be necessary to strengthen the criterion to L<SUB>max</SUB> ≤ 45 ㏈(A) and 40 ㏈(A) for the first and second stages, respectively.
양관섭(Kwan-Seop Yang),김경우(Kyung-Woo Kim),이승언(Seung-Eon Lee) 한국생활환경학회 2004 한국생활환경학회지 Vol.11 No.2
The noise through floor system is the biggest problem of apartment housing in Korea. The government has prepared a legal standard of the floor impact noise isolation performance for apartment housing. This paper deals with the characteristics of impact noise isolation performance of current floor system, and the difference of test results according to the test methods and impact sound sources. The results shows that current floor systems with noise absorption material or increased slab thickness is able to satisfy the light weight sound transmission level, but heavy weight sound transmission level is not easily achieved with usual methods such as noise absorption material or increasing slab thickness.
유리의 단면구성과 미서기 창호 창틀이 창의 차음성능에 미치는 영향
양관섭(Kwan-seop Yang),신혜경(Hye-kyung Shin),김경우(Kyoung-woo Kim) 한국소음진동공학회 2019 한국소음진동공학회 논문집 Vol.29 No.6
In general, indoor noise due to external noise such as automobiles and airplanes is determined by the sound insulation performance of the window. However, windows do not only provide sound insulation from external noise but also perform various functions such as providing views, ventilation, insulation, and airtightness. Among these functions, the national insulation standards, including windows, have been strengthened to achieve greenhouse gas reduction for the building sector. Therefore, the cross-sectional structure of glass (air-layer thickness between glasses, presence of argon filling in the air layer, etc.) or surface treatment state of glass is changed to meet the insulation standards for windows in each region. In this study, we investigated how the sound insulation performance of windows changes according to these changing conditions through laboratory tests.