掲載雑誌（和）：
土木学会論文集 I
巻：
-巻
号：
356/I-3号
頁：
499-506頁
年：
1985年
月：
4月
著者（和）：
千葉利晃
タイトル（和）：
地震動の非定常回転スペクトル特性
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抄録（和）：
-
キーワード（和）：
-
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掲載雑誌（英）：
JOURNAL OF STRUCTURAL MECHANICS AND EARTHQUAKE ENGINEERING
著者（英）：
タイトル（英）：
CHARACTERISTICS OF NONSTATIONARY ROTARY SPECTRUM OF EARTHQUAKE MOTIONS
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抄録（英）：
The characteristics of earthquake wave motions are dicussed using the rotary spectrum which is represented in the plane Cartesian coordinates of frequency and time axes. At first, the relationships with the time series analysis andthe particle motions are explained. The praticle motions are expressed with thecoefficient which represents the direction of rotary motion and the rotation angle of the ellipse. The coefficient and the rotation angle are determined from the nonstationary cross spectrum which is given by the time series analysis. From the figures of rotary spectrum, the characteristics of the particle motions ofthe strong ground motions and also the arriving time of the different events (multi-fracture mechanism at the focus) are discussed in this paper.
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キーワード（英）：
-
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記事区分：
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