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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Evaluation of the Dynamic Stiffness and Heavy-weight Floor Impact Sound Reduction by Composition of Resilient Materials

완충재 구성방법에 따른 동탄성계수 및 중량바닥충격음 저감특성 평가

  • 김경우 (한양대학교 대학원 건축공학과) ;
  • 정갑철 ((주)비아엔지니어링) ;
  • 손장열 (한양대학교 건축대학 건축공학부)
  • Published : 2008.02.20
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Abstract

Resilient materials are generally used for the floating floors to reduce the floor impact sound. Dynamic stiffness of resilient material, which has the most to do with the floor impact sound reduction. The resilient materials available in Korea include EPS(styrofoam), recycled urethane types, EVA(ethylene vinylacetate) foam rubber, foam PE(polyethylene). glass fiber & rock wool, recycled tire, foam polypropylene. compressed polyester, and other synthetic materials. In this study, we tested dynamic stiffness of resilient material and floor impact sound reduction characteristic to a lot of kinds of resilient materials. It was found that dynamic stiffness of multi-layered damping material could be estimated if know value of each layer that compose whole structure. And the test showed that the amount of the heavy-weight impact sound reduction appeared by being influenced from this dynamic stiffness of resilient material. The dynamic stiffness looked like between other resilient materials, a similar to the amount of the heavy-weight impact sound reduction was shown.

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References

  1. Jeong, G. C. and Yang, G. S., 2001, 'A Study on the Property of the Floor Impact Isolation Material in Apartment House', Proceedings of the KSNVE Annual Autumn Conference, pp. 59-64
  2. Ministry of Construction and Transportation Notification No. 2006-435, 'Apartment Housing Floor Impact Sound Insulation Structure Confirmation and Management Standard'
  3. Lee, J. W., Jeong, G. C. and Kwon, Y. P., 2003, 'Correlation between Dynamic Characteristics of Isolation Material and Impact Noise Reduction of Light-weight Impact Source', Proceedings of the KSNVE Annual Spring Conference, pp. 191-195
  4. Song, M. J., Jang, G. S. and Kim, S., W., 2000, 'An Experimental Study on the Prediction Method of Light Weight Floor Impact Sound Insulation Performance of Apartment Floor Structures through Mini-laboratory Tests', Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 10, No. 1, pp. 82-98
  5. Kim, H. G., Kim, M. J. and Lee, B. K., 2005, 'Study on Measuring the Dynamic Stiffness of Materials Used under Floating Floors in Dwellings', Journal of the Architectural Institute of Korea Planning & Design, Vol. 21, No. 1, pp. 229-234
  6. Kim, H. S., Jin, P. H., Joo, S. W. and Jung, S. W., 2005, 'A Study on the Dynamic Properties by Loading Time of Floor Impact Noise Insulation Materials', Proceedings of the KSNVE Annual Spring Conference, pp. 942-945

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  1. A Study on the inclined balcony and double deck structure of Korean traditional housing vol.16, pp.12, 2015, https://doi.org/10.5762/KAIS.2015.16.12.8408
  2. Development of Analytical Impact Force Models for Floor Impact Vibration and Acoustic Numerical Analysis vol.6, pp.5, 2016, https://doi.org/10.3390/app6050120
  3. Analysis of Heavyweight Floor Impact Sound Level with Dynamic Stiffness and Thickness of EPS Type Resilient Materials vol.28, pp.6, 2018, https://doi.org/10.5050/KSNVE.2018.28.6.713