Mechanism of unsteady aerodynamic forces on long-span curved roofs and application to the wind resistant design
| Project/Area Number |
21360261
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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 | Tohoku University |
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Principal Investigator |
UEMATSU Yasushi 東北大学, 大学院・工学研究科, 教授 (60151833)
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| Co-Investigator(Kenkyū-buntansha) |
奥田 泰雄 独立行政法人建築研究所, 上席研究員 (70201994)
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| Co-Investigator(Renkei-kenkyūsha) |
MOCHIDA Akashi 東北大学, 大学院・工学研究科, 教授 (00183658)
OKUDA Yasuo 独立行政法人建築研究所, 上席研究員 (70201994)
KIKITSU Hitomitsu 国土交通省, 国土技術政策総合研究所, 主任研究官 (10370694)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
Fiscal Year 2011: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2010: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Keywords | 大空間構造 / 非定常空気力 / 空力剛性 / 空力減衰 / 風洞実験 / 数値流体解析 / 動的応答解析 / 耐風設計 / CFD / PIV |
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| Research Abstract |
The unsteady aerodynamic forces acting on a vaulted roof vibrating in the first anti-symmetric mode in a turbulent boundary layer have been investigated by a wind tunnel experiment and CFD analysis. The unsteady aerodynamic force is represented by the aerodynamic stiffness and damping coefficients and given by a function of the reduced frequency. A discussion is made of the application of these coefficients to the dynamic response analysis.
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Report
(4 results)
Research Products
(11 results)
