535 実測データの伝達関数を用いたシステム同定による高層建物の 1 次減衰比の評価方法

概要

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This paper presents the evaluation method of first mode damping ratio using the system identifications of transfer function. The system identifications are used with the transfer function of measurement data of microtremors and that on the theory of which the building is modeled into a single degree of freedom system. The transfer function on measuring data is not articulated in each frequency domain. Then, these system identifications are applied with the maximum magnification factor, the average of several peaks near to the first mode natural frequency and the regression curve of using the transfer function on theory. And the influence of first mode damping ratios that evaluated from the three methods is examined. Also the equivalent mass positions along the height and the band width in frequency domain that are the parameters of system identifications are discussed.
社団法人日本機械学会の論文
2002-09-13