Evaluation of shear resistance mechanism of RC liner members based on image analysis and upgrading the design method
| Project/Area Number |
23760419
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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 |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
MATSUMOTO Koji 東京工業大学, 理工学研究科, 助教 (10573660)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | RC棒部材 / せん断 / 画像解析 / 鉄筋コンクリート棒部材 / 噛合い作用 / ダウエル作用 / 斜めひび割れ / 破壊メカニズム / 骨材の噛合い作用 |
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| Research Abstract |
To upgrade the shear design method of reinforced concrete liner members, which is important to ensure the safety of structures in seismic events, shear failure mechanism was investigated by using the image analysis technique and a new predictive equation for shear capacity was developed. The accuracy of the existing image analysis was improved, and then it was applied to measure the crack surface displacement along the shear crack of fiber reinforced concrete beams. The shear resistance of fibers at the crack was calculated by using the measured crack surface displacement and tensile stress-crack opening displacement relationships obtained from the separately-conducted elementary tests. By formulating the shear resistance of fibers respecting to each parameter, a new predictive equation for shear capacity which has higher accuracy than that of the existing equation, was developed.
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Report
(4 results)
Research Products
(16 results)
