한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2014년도 추계학술대회 논문집
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- Pages.197-202
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- 2014
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- 1598-2548(pISSN)
공동주택 이중바닥구조의 바닥충격음 저감성능
Floor Impact Noise Reduction Performance of Double-Floor System in Apartments
- Baek, Gil-Ok (Department of Architecture, Seoul National University) ;
- Park, Hong-Gun (Department of Architecture, Seoul National University) ;
- Mun, Dae-Ho (Department of Architecture, Seoul National University)
- 발행 : 2014.10.29
초록
Floor Impact Noise is a structure-borne noise which is mainly caused by vibration of concrete slabs. The majority of previous studies have focused on investigating performance of absorbing sheets on the reduction of floor impact noise. But absorbing sheets do not efficiently reduce heavy-weight floor impact noise level because it cannot absorb slab vibration, which is the fundamental noise source. In this study, double-floor system was developed in order to reduce floor impact noise level in residual buildings. This floor system reduces heavy-weight impact noise level by reducing vibration response at the center of slab, which has maximum amplitude in the 1st vibration mode. In order to identify the performance of the double-floor system, experiments were planned. Primary test parameters are span of double floor, arrangement and types of absorbing sheets.
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