| Project/Area Number |
25289177
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Building structures/Materials
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ASARI Tetsuhiro 北海道大学, 大学院工学研究院, 助教 (90250472)
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| Co-Investigator(Renkei-kenkyūsha) |
AZUHATA Tatsuya 国立研究開発法人建築研究所, 国際地震工学センター, 上席研究員 (00251629)
ISHIHARA Tadashi 国立研究開発法人建築研究所, 建築生産研究グループ, 主任研究員 (50370747)
OKAZAKI Taichiro 北海道大学, 大学院工学研究院, 准教授 (20414964)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2015: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2013: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
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| Keywords | 建築構造 / 制振 / ロッキング / 地震応答低減 / 耐震設計 / 構造工学 |
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| Outline of Final Research Achievements |
The steel frames with column mid-height uplift (CMU) mechanism at the first story are implemented as response-control structural systems that reduce the seismic effects by exploiting the gravity effect generally deteriorating the seismic performance of ordinary structures. In the previous studies, the reduction effect on the seismic response of the column-base uplift (CBU) rocking systems with columns allowed to uplift has been evaluated and examined. The advantages and disadvantages of the systems have also been discussed. This study presents the seismic performance of CMU rocking frames with emphasis on the fundamental mechanical properties of CMU frames based on the simplified analytical models, performance evaluation of CMU mechanism resulted from the cyclically static loading tests and the seismic response behavior of CMU frames. Finally, some suggestions and recommendations are made on the seismic design of the rocking systems.
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