地盤・建屋相互作用系の時刻歴解析と周波数解析の等価性に関する基礎的研究

概要

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We present various types of evaluation methods of causal discrete impulse response of unbounded soil, which are necessary for the substructure approaches working in the time-domain nonlinear response analysis considering the soil-structure interaction effects. The discrete impulse responses are obtained either by the Hilbert transform using the FFT algorithm (Causal FFT treatment) of the flexibility of soil calculated in the bandlimited frequency range or by the discretisation of the continuous impulse response formulated in the time domain. The dynamic property of the impulse responses and their effects to the response analyses are examined by comparing the asymptotic property of the flexibility soil in the frequency with the asymptotic property of the impulse response in the time domain, and through earthquake response analyses.
社団法人日本建築学会の論文
1990-12-30