コンクリートスラブ上に設置された木質系二重床の重量床衝撃音改善量に対する空気ばねの影響に関する実験的研究

概要

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Impact sound improvements of wooden cover floor on concrete slab for heavy/soft impact sources are investigated. This paper shows three aspects of investigation for the spring effect of air space between floor covering and slab. First, the distributions of improvement due to the impact point are measured at a multi-family dwelling. Hence, the effect of covering is relatively high at the peripheral area, and the distribution differs from that of the ceiling. Second, it is shown that the improvement caused by the air spring between slab and wooden cover floor can be effective rather than the vibration transmission via supporting studs. Especially air spring transmission is spread equally to all of the covered area and it differs the transmission via studs. Furthermore, the effects of backing-impedance for vibration transmission of finite double-layered plate are shown using numerical calculation.
社団法人日本建築学会の論文
2001-08-30