| Project/Area Number |
25289186
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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 | Kyushu University |
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Principal Investigator |
kawano akihiko 九州大学, 人間・環境学研究科(研究院), 教授 (60136520)
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| Co-Investigator(Kenkyū-buntansha) |
NINAGAWA Toshihiko 九州大学, 大学院人間環境学研究院(研究院), 教授 (90237769)
MATSUO Shintaro 九州大学, 大学院人間環境学研究院(研究院), 准教授 (40583159)
TSUDA Keigo 北九州市立大学, 工学部, 教授 (50112305)
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| Co-Investigator(Renkei-kenkyūsha) |
KIDO Masae 北九州市立大学, 工学部, 准教授 (10453226)
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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 |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2015: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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| Keywords | 津波 / 衝撃荷重 / コンクリート充填鋼管 / 津波避難ビル / 津波漂流物 / 漂流物 / 衝撃 / 合成構造 / 津波非難ビル |
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| Outline of Final Research Achievements |
In late years, there were the serious damage caused by Tsunami, so that Tsunami evacuation buildings or towers are required. Tsunami flotsams are the impact loads for buildings. With respect to those, the concrete filled steel tubular (CFT) structures are suitable, because CFTs have superior impact-resistant capacities. However, evaluation method of the capacities has not been developed. As a result of the impact loading test and analysis, the followings were provided. The impact-resistant capacity of CFT can be evaluated by a comparison between input and dissipation of energy in the ultimate limit state. There are two events which are (a) the steel tube breaking and (b) the loss of the ability for supporting vertical load. As for event (a), it is predicted whether the tensile strains in the tube exceeds the limit. As for event (b), it can be predicted by the plastic hinge model. The impact-resistant capacity of the framework can be predicted by the plastic hinge model, as well.
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