| 논문명 | 벽체지지형 천장 배후 흡음재 설치에 따른 수음실 흡음력 변화와 중량충격음 차단성능 주파수 대역별 상관관계 고찰/Correlation between Sound Absorption and Heavy Weight Impact Sound according to Installation of Sound Absorbing Material behind the Wall Supported Ceiling System |
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| 저자명 | 이성복(Lee, Seong-Bok) ; 김신태(Kim, Sin-Tae) ; 안장호(An, Jang-Ho) ; 김명준(Kim, Myung-Jun) |
| 발행사 | 한국건축친환경설비학회 |
| 수록사항 | 한국건축친환경설비학회 논문집 , Vol.15 No.6 |
| 페이지 | 시작페이지(723) 총페이지(12) |
| ISSN | 1976-6483 |
| 주제분류 | 환경및설비 |
| 주제어 | 벽체지지형 천장; 바닥충격음; 잔향시간; 흡음재; 흡음력; 감음량; 차음 Wall supported ceiling system; Floor impact sound; Reverberation time; Absorbing material; Sound absorption; Noise reduction; Sound insulation |
| 요약2 | In this study, the sound field according to the ceiling installation was confirmed by measuring the reverberation time, and the increase of sound absorption and the amount of noise reduction were predicted. In addition, predicted noise reduction according to changing reverberation time and measured noise reduction of floor impact sound according to the ceiling installation were compared. Two types of ceiling structure were used, “suspended ceiling” fixed directly to the slab and “wall supported ceiling” fixed to the wall. Porous absorbing material was additionally installed in the “wall supported ceiling”. In a space with a long reverberation time, it was confirmed that the porous sound absorbing material behind the unperforated gypsum board affects the reduction of the reverberation time from 8 s to 2 s at 63 Hz. In a space with a reverberation time of 0.8 to 1.2 s, it was confirmed that the difference in reverberation time according to the installation of the sound absorbing material behind the ceiling was about 0.1 to 0.2 s. The correlation between the floor impact sound reduction according to the increase in sound absorption of sound receiving room by excitation of the bang machine was R2=0.7889, p-value=0.0181 (<0.05) at 63 Hz, which showed a high correlation. This suggests that the improvement of floor impact sound insulation performance in the 63 Hz band can be expected by increasing the sound absorption of the sound receiving room. In addition, it indicates the need for correcting the reverberation time of the sound receiving room when evaluating the heavy weight impact sound insulation performance. |
| 소장처 | 한국건축친환경설비학회 |