| Project/Area Number |
26289193
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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 | The University of Kitakyushu |
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Principal Investigator |
Tsuda Keigo 北九州市立大学, 国際環境工学部, 教授 (50112305)
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| Co-Investigator(Kenkyū-buntansha) |
城戸 將江 北九州市立大学, 国際環境工学部, 准教授 (10453226)
保木 和明 北九州市立大学, 国際環境工学部, 講師 (70599026)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2016: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
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| Keywords | 鋼・コンクリート合成構造 / 長周期地震動 / 設計式 / 構造工学 |
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| Outline of Final Research Achievements |
As for the allowable strength of CFT columns, yield strengths observed in the experimental study are similar to the short-term allowable strength of CFT columns. The value of index alpha is shown with which the slender CFT column subjected to the end moment at the only one side exerts the 95% or 90% of full plastic moment. And it is shown that the alpha is appropriate index to evaluate the strength of CFT columns.
The experimental study of the slender CFT columns in order to clarify the cyclic rotation capacity against the long period ground motion is carried out. The test parameters are the effective length - depth ratio, deflection amplitude, axial force ratio and loading program. The degradation of the load is large when the deflection amplitude and axial force ratio are large. The number of cycles when the load decreased by 95%, 90%, 85% and 80% is shown.
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