| Project/Area Number |
26820240
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Building structures/Materials
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| Research Institution | National Institute of Technology, Toyota College |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 高張力鋼繊維 / 幅厚比 / 最大圧縮耐力 / 靭性 / 拘束効果 / コンクリート充填不良 / 繊維混入率 / 圧縮強度 / ヤング係数 / 平均値 / 変動係数 |
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| Outline of Final Research Achievements |
The ductility for concrete filled steel tube (CFT) columns inferior as the strength of filling concrete is higher. In order to restrain this phenomenon, to try the reinforcement by steel fiver for high strength CFT columns while paying attention a research for high ductility of fiber reinforced concrete (FRC) stored. This experimental study investigated the effect of steel fiver reinforcement of compression property for high strength CFT short columns, where compression property for short columns become indexes of strength and ductility in the CFT column structures. As a result, following have been found. i) The axial compressive ductility of high strength square CFT short columns using steel fibered concrete is higher than CFT with concrete without steel fiberd. ii) The axial compressive ductility of high strength circular CFT short columns using steel fibered concrete is lower than it's square.
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