著者

翠川 三郎 時松 孝次

出版者

一般社団法人日本建築学会

雑誌

日本建築学会構造系論文報告集 (ISSN:09108025)

巻号頁・発行日

no.437, pp.75-82, 1992-07-30

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Field observations, shear-wave velocity measurements and microtremor measurements were conducted to reveal the site conditions at twelve strong-motion sites where high amplitude strongmotion records were observed during the 1985 Chile earthquake (Ms 7.8). These field surveys suggested that the site conditions are divided into three types : 1) rock or rock-like ground, 2) stiff gravel ground and 3) rather soft soil ground. The analyses of the strong-motion records showed that the spectra are strongly characterized by these soil types and that the peak ground velocity values are affected by the site soil conditions.