9 多点同時記録による応答モードの評価 : その3.地盤の立体応答モード特性

概要

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Properties of a newly developed method to analyze multi-channel array observation data is studied by use of observed array records of ground responses at Hachinohe Inst. of Tech.. Based on the eigenanalysis of correlation matrix of multi-channel records, modal response decomposition is made accompanying with a response modal shape vector, a time function of response modal amplitude and a response mode participation factor for each response mode. Nonstationary response modal characteristics is obtained by a moving-window approach, and is precisely examined by an orthogonality with stationary modes. It is shown that easy and clear representation of complicated three-dimensional behavior of ground and structures will be obtained by the method.
一般社団法人日本建築学会の論文
1998-03-20