大型スラブの周辺拘束によるインピーダンスレベル上昇量の周波数依存性 : インピーダンス法による大型スラブの重量床衝撃音レベル予測手法に関する研究

概要

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In this paper, we study the evaluation of the restrictions of the slab edge at the excitation point. It was shown that restrictions of the slab edge depend on the frequency by the reflected wave. As a result, Driving point impedance analyzed within impact time was regarded as the value measured by a single frequency. It was confirmed that the change of driving point impedance analyzed in impact time corresponds to that of the average vibration velocity of slab. Therefore.the heavy weight floor impact sound level is predicted by using the change in impedance depending on frequency. The prediction value corresponds to measured value at 125,250Hz(1/1 Oct.).
社団法人日本建築学会の論文
2005-03-30