著者

翠川 三郎

出版者

一般社団法人日本建築学会

雑誌

学術講演梗概集. B, 構造I (ISSN:09150129)

巻号頁・発行日

vol.1991, pp.537-538, 1991-08-01

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.

著者

翠川 三郎

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.422, pp.37-44, 1991-04-30

被引用文献数

1

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Attenuation relations of peak ground acceleration and velocity are examined based on records from the 1985 Chile (M 7. 8) and the 1983 Nihonkai-chubu (M 7. 7) earthquakes for the purpose of predicting intensities of strong-motion during large earthquakes in subduction zone. The relations obtained from the Chilean records show that the effects of site geology and source directivity are significant. The relations from the Chilean records are consistent with the Japanese records when the effects of site amplification on the Japanese records are removed. The comparison of the relations with those of previous studies shows that the attenuation relations derived from U. S. data are different from those for these two earthquakes.

著者

翠川 三郎 藤本 一雄 村松 郁栄

出版者

地域安全学会

雑誌

地域安全学会論文集 (ISSN:13452088)

巻号頁・発行日

no.1, pp.51-56, 1999-11

被引用文献数

34

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The correlation of the new J.M.A. instrumental seismic intensity with the former J.M.A. Seismic intensity and ground motion parameters is examined. The 215 strong-motion records with the intensity of 0 to 7 are used for the analysis. The instrumental seismic intensity computed from the records agrees well with the former seismic intensity determined from human response or observation of damage. The instrumental intensity shows slightly higher correlation with peak ground velocity than peak ground acceleration, and shows highest correlation with the parameters such as the product of the peak velocity and the peak acceleration.