| Project/Area Number |
12650593
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Building structures/materials
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| Research Institution | Tokuyama College of Technology |
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Principal Investigator |
HARA Takashi Tokuyama College of Technology Dept. of Civil Engineering and Architecture Professor, 土木建築工学科, 教授 (50124102)
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| Project Period (FY) |
2000 – 2002
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| Project Status |
Completed (Fiscal Year 2002)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2002: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2001: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2000: ¥2,300,000 (Direct Cost: ¥2,300,000)
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| Keywords | Reinforced concrete / Cylindrical shell / FEM / Experiment / Numerical analysis / Reinforced Concerte / Cylindrical Shell |
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| Research Abstract |
Reinforced concrete (R/C) cylindrical panels are commonly used for industrial plants and storage tanks. R/C cylindrical panel shows large load carrying capacity under lateral distributed external pressure.
R/C cylindrical panel under lateral load has been analyzed experimentally and numerically. It has been reported that there were some discrepancies between numerical analysis and experimental analysis. These causes depend on the initial geometric imperfections of the specimens and the inaccurate modeling of the supporting condition in experiment.
In this paper, the structural behavior of R/C cylindrical panel is analyzed by a numerical approach as well as by experimental results.
In experimental analyses, R/C cylindrical panels are made under the same configuration as the numerical analyses using the steel mold to form the specimens without initial imperfections. In the loading test, R/C panel is supported by the steel ball-hinges to obtain the roller supported condition. Under the same
… More
loading condition as the numerical analysis mentioned above, the deformation characteristics and the load carrying behaviors are measured and are compared with the numerical results. The distributed load is modeled by the equivalent uniform load applied by the whiffle tree system.
In numerical analyses, the finite element method based on a degenerated shell element and a layered approach is adopted Nonlinear behaviors of concrete and reinforcements are taken into account individually. Then the load deflection behavior and the load carrying capacities are evaluated
From both numerical and experimental results, the load carrying behavior of R/C cylindrical panel is presented under an external lateral pressure. Then, it is concluded that both results show in good agreement and the experimental model represents the same characteristics as the numerical analysis. In addition, the irregularity of reinforcing position have to be taken into account as the imperfection. The detail of such imperfection effects have been analyzed Less
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