2012 Fiscal Year Final Research Report
Study on seismic isolated foundation and its input mechanism for extreme earthquake
| Project/Area Number |
22360226
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Building structures/materials
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| Research Institution | Osaka University |
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Principal Investigator |
MIYAMOTO Yuji 大阪大学, 大学院・工学研究科, 教授 (50416856)
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| Co-Investigator(Kenkyū-buntansha) |
SHIMAMURA Atsushi ケミカルグラウト株式会社, その他部, 研究員 (10535967)
TAMURA Shuji 京都大学, 防災研究所, 准教授 (40313837)
KASHIWA Hisatoshi 大阪大学, 大学院・工学研究科, 助教 (40550132)
NAGANO Masayuki 東京理科大学, 理工学部, 教授 (60416865)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 建築構造 / 応答低減 / 絶震基礎 / 複合改良地盤 / 免震衝突 / 地盤‐基礎相互作用 |
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| Research Abstract |
This study addresses the developing of the improved soil which reduces the response of the superstructure. The mechanical properties of the improved compound soil are investigated by laboratory tests. Then earthquake response behaviors of spread foundation model and base-isolated building in collision to retaining wall are discussed with improved backfill soil by shaking table tests. Furthermore analysis results by 3D-nonlinear FEM are also discussed to clarify the effect to the response reduction of structures during an extreme earthquake.
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