| Project/Area Number |
14550484
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
構造工学・地震工学
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| Research Institution | Musashi Institute of Technology |
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Principal Investigator |
KATADA Toshiyuki Musashi Institute of Technology, Department of Civil Engineering, Professor, 工学部, 教授 (30147897)
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| Co-Investigator(Kenkyū-buntansha) |
SUEMASA Naoaki Musashi Institute of Technology, Associate Professor, 工学部, 助教授 (80206383)
TAMATE Satoshi Construction Safety Research Group, the National Institute of Industrial Safety, Incorporated Administrative Agency under the Ministry of Health, Labour and Welfare, Senior Researcher, 建設安全グループ, 主任研究官 (10344243)
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| Project Period (FY) |
2002 – 2004
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| Project Status |
Completed (Fiscal Year 2004)
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| Budget Amount *help |
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2004: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2003: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2002: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | Centrifuge Modeling Test / Pile Foundations / Gap / Dynamic Subgrade Reaction Model / Dynamic Magnification Factor / Natural Frequency / 振動モード |
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| Research Abstract |
The gap near the pile head has been passed over in dynamic behavior of the structure-pile foundation-surface ground system during an earthquake. Therefore, in this study, the subgrade reaction model considering "the gap between surface ground and pile head" was formulated on the elasto-plasticity theory. And that the effect of cyclic loading was also considered in this model. The numerical results of the response analysis were verified by the centrifugal model experiment.
A temporary tower crane that was supported on the pile foundation was numerically and experimentally analyzed. Both analytical results agreed well. And also, it became clear that the generation and expansion of the gap near the pile head effected on the vibration characteristics of the tower crane.
It is meant that the subgrade reaction model considering the gap is useful to analyze the earthquake response of structure-pile foundation-surface ground system at the good accuracy.
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