| 掲載雑誌（和）： | 日本地震工学シンポジウム論文集 |
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| Vol： | 10-1巻 |
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| 年： |
1998年
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| 頁： |
559-564頁
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| 著者（和）： |
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| タイトル（和）： |
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| 抄録（和）： |
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| キーワード（和）： |
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| 掲載雑誌（英）： |
THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
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| 著者（英）： |
Takumi TOSHINAWA,Rafael RIDDELL,Ernesto CRUZ,Francisco GAJARDO
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| タイトル（英）： |
EVALUATION OF THE DISTRIBUTION OF GROUND-MOTION CHARACTERISTICS IN SANTIAGO, CHILE
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| 抄録（英）： |
In Santiago, Chile, strong-motion array observation has been conducted since 1989. Observed accelerograms show that a silty-soil site has the largest amplification characteristics among the sites. To evaluate the distribution of ground-motion characteristics around the silty-soil site, dense microtremor observation was carried out. Horizontal to vertical spectral ratios of microtremors were obtained for 69 sites. Fundamental periods of H/V spectral ratios were correlated with the thickness of Pleistocene deposits. Plural spectral peaks in the northern part of the area suggest the existence of soft subsurface soils on the Pleistocene deposits. High maximum spectral peak values in the northeastern part of the area suggest the possibility of high amplification during earthquakes.
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| キーワード（英）： |
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| 記事区分： |
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| 区分： |
委員会論文集 |
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