| Project/Area Number |
61550405
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Building structures/materials
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
WADA Akira Tokyo Institute of Technology, 工学部, 助教授 (90158684)
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| Project Period (FY) |
1986 – 1987
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| Project Status |
Completed (Fiscal Year 1987)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1987: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1986: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Steel frame stractures / Large eflection / Reinforced concrete frame strutures / Strain softening / Steel reinforced concrete frame structures / Instable structures / Singular value decomposition / 板殻の有限要素解析 / コンクリート / 弾塑性解析 / スーパーコンピュータ |
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| Research Abstract |
1. Members of steel frame structures could be analyzed, always provided that the aforsaid-conditions can be assumed, to a considerably refined extent in relation with various nonlinear problems through utilizing the particular shape of the frame stvucture.
2. Reinforced Concrete frame construction could be analyzed using finite segment method which considers the shear deformation of beam-column joints and the continuity of reinforcing bars among beam, column and beam-column joint. The ron-linear methad is the incremental method, which has developed on a basis of the stationary principle of incremental potential energy.
3. Steel reinforud concrete (SRC) construction cold be analyzed using an elestic and plastic analysis method bazed on the beam theory, and the distribution of stress and the behavior of each component member of SRC structure could be made clear.
4. The authov has established a method to cslcurate an instable structure in nomlinear stvuctural analysis. This method is an impraved version of ovdimary nonlinear finite element method.
5. A finite element formulation and algovithm for geometrical nonlinear problem of plates and shells is preseuted. A unique feature of this algorithm is the use of a 9-node Lagragian quadrilateral element with new selective integration and a finite-detormetion constitutive equation.
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