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http://dx.doi.org/10.5050/KSNVE.2014.24.8.651

Comparison of Impact Sound Insulation Performances of Apartment Floors Against Heavy-weight Impact Sources via Field Measurement Data  

Yun, Chang-Yeon (Department of Architectural Engineering, University of Seoul/Doosan Engineering & Construction)
Yeon, Jun-Oh (Department of Architectural Engineering, University of Seoul/Korea Institute of Civil Engineering and Building Technology)
Kim, Myung-Jun (Department of Architectural Engineering, University of Seoul)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.24, no.8, 2014 , pp. 651-658 More about this Journal
Abstract
Notification 2013-611 of MOLIT has come into effect. It relates primarily to new standard impact source. In this study, an in-depth experimental analysis of the difference between a bang machine and an impact ball was performed via field testing of shear wall and flat plate structure at 51 sites. This paper focuses on the difference in single number quantities between a bang machine and an impact ball. At wall thicknesses of 180 and 210 mm in shear wall structure, the single number quantities exhibited differences of 3.1 and 4.5 dB, respectively, and at thicknesses exceeding 250 mm in flat plate structure, the difference was constant at 4.6 dB. With regard to flat plate structures, the single-index difference increased up to 11 dB as the thickness of the floor slab increased. In general, the highest level of contribution for the bang machine was 63 Hz, irrespective of thickness determining bandwidth. The highest level for the impact ball were 63 Hz and 125 Hz. In future research, when reviewing additional field performance measurement data, it will be necessary to consider a detailed examination instead of the current method of uniformly adding 3 dB for all thicknesses and types of structures.
Keywords
Floor Impact Sound; Shear Wall Structure; Flat Plate Structure; Bang Machine; Impact Ball; Apartment Building;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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