2014 Fiscal Year Final Research Report
damage mechanism of bridge structures by huge tsunami and the proposal of countermeasures
| Project/Area Number |
24246079
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ARIKAWA Taro 中央大学, 工学部, 教授 (00344317)
MIZUTANI Norimi 名古屋大学, 工学研究科, 教授 (10209760)
HAYASHI Kazuhiko 香川高等専門学校, 建設環境工学科, 准教授 (20334633)
TANAKA Yasushi 東京大学, 生産技術研究所, 特任准教授 (40377221)
WATANABE Ken 鉄道総合技術研究所, 構造物技術研究部, 副主任研究員 (40450746)
FUJIMA Koji 元防衛大学校, システム工学群建設環境工学科, 教授 (00546187)
HOSODA Akira 横浜国立大学, 大学院都市イノベーション研究院, 准教授 (50374153)
CHIJIWA Nobuhiro 東京工業大学, 理工学研究科, 助教 (80546242)
SHIGIHARA Yoshinori 防衛大学校, システム工学群建設環境工学科, 助教 (90532804)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 津波 / 橋梁 |
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| Outline of Final Research Achievements |
Acting force on bridge structures due to huge tsunami was studied through large scale hydraulic test, 3D computational fluid dynamics and tsunami wave propagation analysis. In addition to lift by staircase wave and solitary wave, hydrodynamic force both in steady and unsteady flow is evaluated quantitatively. Evaluation equation was verified with data set of bridge structures attacked by the 2011 off the Pacific coast of Tohoku Earthquak tsunami. Limitation of evaluation equation was also recognized.
Computational fluid dynamic program which is able to simulate the movement of bridge structures was developed with use of coupling technique between solid, gas, and liquid phase. The effect of strengthening method is able to be evaluated by the AEM software which deals with fracture and large deformation of structures.
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| Free Research Field |
コンクリート工学
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