| 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： |
1193-1198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）： |
Makoto KAMIYAMA,Tadashi MATSUKAWA,Masaru,YOSHIDA
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| タイトル（英）： |
NON-STATIONARY VARIATION OF SOIL RIGIDITY OBSERVED DURING THE 1995 HYOGOKEN NANBU EARTHQUAKE MAKOTO KAMIYAMA, TADASHI MATSUKAWA, MASARU, YOSHIDA
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| 抄録（英）： |
The array-downhole records observed at Port Island during the 1995 Hyogoken Nanbu Earthquake showed a notably non-linear response, suggesting the reduction of rigidity and increase of damping in the soils. Such a non-linear response was confirmed to be not stationary in time. In order to estimate non-stationary variations of rigidity and damping, the complex envelope technique was used together with a finite difference scheme. The method made it clear that the soils near the surface exhibited a remarkably non-stationary variation of rigidity and damping with complicated process of softening and hardening.
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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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