Browse > Article
http://dx.doi.org/10.5050/KSNVE.2016.26.2.130

Floor Impact Noise Level for Concrete Slab Integrated with Floor Finishing Layers  

Mun, Dae Ho (Department of Architecture Engineering, Dankook University)
Oh, Yang Ki (Department of Architecture, Mokpo National University)
Jeong, Gab Cheol (Research Institute, S.I.PAN Co., Ltd.)
Park, Hong Gun (Department of Architecture, Seoul National University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.26, no.2, 2016 , pp. 130-140 More about this Journal
Abstract
Floating floor is most commonly used at apartment houses in Korea for thermal insulation and reducing impact noise. But it in proven that the floating floor is not effective for reducing the floor impact noise in low frequency range. In most cases, impact sound pressure level under 63 Hz frequency band were actually increased by the resonance of resilient material, lightweight concrete and the finishing mortar installed on it. In this paper, an integrated floor system consist of 70 mm light weight concrete and 40 mm finishing mortar successively installed on the concrete slab was suggested to avoid the resonance. Integrated floor system increases total flexural stiffness and mass per unit area. The natural frequencies of first and second vibration mode were increased and acceleration response and floor impact sound level was decreased in all measurement range.
Keywords
Floor Impact Sound; Integrated Floor; Heavy-weight Impact Sound; Remodeling;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
1 National Institute of Environmental Research, 2011, Final Report for the Survey of Floor Impact Sound in Apartment Buildings in Korea.
2 Mun, D. H., Park, H. G., Hwang, J. S. and Hong, G. H., 2014, An Analysis of Characteristics of Floor Dynamic Properties and Bang-machine Impact Force on Floating Floor Using System Analysis, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 24, No. 5, pp. 390~398.   DOI
3 Chung, J. Y., Lee, S. W., Im, J. B. and Jeong, G. C., 2008, Research about Correlation of Slab Vibration Mode and Heavy-weight Floor Impact Sound, Proceedings of the KSNVE Annual Spring Conference, pp. 839-843.
4 Kim, I. H. and Lee, K. D., 2009, A Study on the Characteristics of Heavy-weight Floor Impact Sound in Apartment Houses of the Flat Plate Structures, Proceedings of the KSNVE Annual Autumn Conference, pp. 161-162.
5 Korea Environment Corporation, 2016, The report for Operating Results of National Noise Information System During 2012 to 2015, http://www.noiseinfo.or.kr
6 Jeon, J. Y., Lee, P. J., Jeong, J. H. and Park, J. H., 2006, Comparison of Standard Floor Impact Sources with a Human Impact Source, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 16, No. 8, pp. 789~796.   DOI
7 Park, H. K., Kim, K. M. and Kim, S. W., 2013, Verification of Effectiveness of the Standard Floor Impact Source by Comparing with Living Impact Sources, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 23, No. 12, pp. 1117~1126.   DOI
8 Kim, K. W., Choi, G. S., Jeong, Y. S. and Yang, K. S., 2005, Impact Power Characteristics as Behavior of Real Impact Source(Child), Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 15, No. 58, pp. 542~549.   DOI
9 Mun, D. H., Park, H. G. and Hwang, J. S., 2014, Prediction of Concrete Slab Acceleration and Floor Impact Noise Using Frequency Response Function, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 24, No. 6, pp. 483~492.   DOI
10 Mun, D. H., Park, H. G., Song, G. G. and Lee, C. S., 2014, Reduction Effect of Floor Impact Noise and Impact Force of PVC Floor Covering and Floor Mat, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 24, No. 7, pp. 501~508.   DOI
11 Fahy, F. J. and Gardonio, P., 2007, Sound and Structural Vibration: Radiation, Transmission and Response, 2nd Edition, ELSEVIER, pp. 26-29.