2011 Fiscal Year Final Research Report
Basic Study on Development of Response Controlled System with Uplift Mechanism
| Project/Area Number |
21560607
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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 |
Building structures/materials
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| Research Institution | Building Research Institute (2010-2011)
National Institute for Land and Infrastructure Management (2009) |
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Principal Investigator |
ISHIHARA Tadashi 独立行政法人建築研究所, 国際地震工学センター, 主任研究員 (50370747)
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| Co-Investigator(Kenkyū-buntansha) |
AZUHATA Tatsuya 国土交通省国土技術政策総合研究所, 建築研究部, 室長 (00251629)
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| Co-Investigator(Renkei-kenkyūsha) |
MIDORIKAWA Mitsumasa 北海道大学, 大学院・工学研究院, 教授 (90126285)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 浮き上がり / 架構形式 / 中間層 / 回転慣性 / 均一せん断棒 / モード解析 / 振動台実験 / 地震応答解析 |
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| Research Abstract |
To utilize the seismic-force reduction effect due to uplift to a wider range of buildings, three types of response controlled systems are investigated in this study. Those systems are(1) Systems allowed to uplift at mid-story,(2) Systems allowed to uplift with narrower span of column/support than the width, and(3) Systems with multi spans. For(1) and(2), analytical study is done using uniform shear-beam model to clarify those vibration characteristics and dynamic behaviors. Then shaking table tests are conducted to investigate the seismic responses and reduction effect by uplift motion. For(3), a self-centering structural system is proposed and seismic response analysis is carried out to investigate the multi-dimensional responses using an application example. The results show the distinctive higher-mode vibration and reduction effect due to uplift in those systems.
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