Analysis of the Airborne Sound Insulation Performance of Floor Structures Based on the Intensity Method

Jun Oh Yeon; Kyoung Woo Kim; Kwan Seop Yang; Myung Jun Kim

doi:10.4028/www.scientific.net/AMM.752-753.796

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 752-753Analysis of the Airborne Sound Insulation...

Analysis of the Airborne Sound Insulation Performance of Floor Structures Based on the Intensity Method

Abstract:

Apartment buildings are constructed using box frame structures that integrate slabs and wall frames, and vibrations can easily travel through these integrated box frame structures. On the other hand, such a framed structure generates fewer gaps between structural elements, assuring a superior insulation performance of airborne sound compared to wooden houses. Vertically installed equipment running through different floor levels can serve as a transmission route for airborne sound of specific frequency bands. In this study, we sought to develop technical methods to improve the inter-floor airborne sound insulation performance. To this end, we measured the sound insulation performance of floor structures and intensity levels in noise penetration areas. The sound insulation performance of the living room floor structure was measured to exceed 51 dB, which was superior to that of the restroom floor by 2–7 dB. Intensity measurements identified the central and corner areas of the living room as high-level noise areas.

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Periodical:

Applied Mechanics and Materials (Volumes 752-753)

Pages:

796-799

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.752-753.796

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Online since:

April 2015

Authors:

Jun Oh Yeon, Kyoung Woo Kim*, Kwan Seop Yang, Myung Jun Kim

Keywords:

Air-Borne Sound, Intensity Method, Sound Insulation Performance

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* - Corresponding Author

References

[1] K.W. Kim, K.S. Yang, J.Y. Chung, J.B. Im and G.C. Jeong, Evaluation of the Light-weight Floor Impact Sound Reduction Characteristics by Types of Resilient Material, Proc. KSNVE. (2008).

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[2] H.J. Choi, K.W. Kim, J.O. Yeon, K.S. Yang and K.H. Kim, An Analysis on the Floor Impact Reduction of Dry Double-Floor System, Proceeding of the KSNVE. (2011).

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[3] Deputy Prime Minister, The Building Regulations 2000(Resistance to the passage of sound), UK, (2003).

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[4] K.W. Kim, J.O. Yeon and K.S. Yang, Field measurement of airborne insulation performance between upper and lower units floors in apartment house, Proc. KSNVE. (2014).

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