공동주택 모델링을 통한 중량충격음 예측에 관한 연구

다국어 초록 (Multilingual Abstract)

In this study, numerical analysis is performed to investigate the sound radiation characteristics of an apartment house according to the type of the slab system. In order to satisfy the boundary condition of the apartment house, the whole floor is modelled with FEM model for three different structural system: wall, RC, flat slab system. From the analytical results, it is shown that heavy weight floor impact noise of wall type slab is larger than that of the other slab systems and the noise radiated from the wall have great effect on the sound pressure level. The results also show that the vibration energy of RC or flat slab system is widely distributed over the whole slab, which is main reason that the noise induced by the slab systems is reduced in comparison with wall slab system.

참고문헌 (Reference)

1 서상호, "완충재 유무에 따른 표준중량충격원에 의한 콘크리트 바닥 구조의 소음 및 진동 특성" 한국소음진동공학회 14 (14): 661-667, 2004

2 전진용, "바닥충격에 의한 공동주택의 바닥, 벽, 천장의 진동 및 소음방사특성 연구" 대한건축학회 18 (18): 191-197, 2002

3 Sung, C.-C., "The Response of and Sound Power Radiated by a Clamped Rectangular Plate" 207 (207): 301-317, 1997

4 Koopmann, G. H., "Designing Quiet Structure" Academic Press 1997

5 Seo, J. R., "An Experimental Study on the Noise and Vibration Reduction Effect Depending on Dynamic Property of Slab" 24 (24): 161-164, 2004