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http://dx.doi.org/10.5050/KSNVN.2009.19.2.184

Small-size Specimen's Effectiveness That is Used to Mortar Layer of Slab (Heavy-weight Floor Impact Sound)  

Chung, Jin-Yun (대우건설/경기대학교 건축학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.19, no.2, 2009 , pp. 184-191 More about this Journal
Abstract
This study examined small-size specimen's effectiveness that is used to evaluate floor impact sound performance. Floor impact sound level of small-size specimen is higher than full-size. This is due to excessive impact power of Bang machine. Impact hammer that has small impact power relatively can solve this problem. But, according to the size of specimen, mode shape and frequency that influence to structural borne sound is changed. Slab mode of full-size specimen was changed to frequency design of resilient materials. But in case of small-size specimen, there is no change of vibration mode by resilient materials change, Vibration mode of small-size specimen is the same. Therefore, it is not proper that use small-size specimen in floor impact sound estimation.
Keywords
Resilient Material; Vibration Mode; Small-scale Specimen;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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