STRENGTH OF A COMPOSITE BEAM-COLUMN SUBJECTED TO BI-DIRECTIONAL BENDING
| Project/Area Number |
16560517
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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 | Setsunan University |
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Principal Investigator |
SHIBATA Michio Setsunan Univ., Faculty of Engineering, Professor, 工学部, 教授 (40079520)
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| Project Period (FY) |
2004 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2005: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2004: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | Composite Structure / Beam-Column / Non-Symmetric Bending / Bi-Directional Bending / Maximum Strength / Slenderness Effect / Collapse Mechanism |
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| Research Abstract |
1 ELASTIC-PLASTIC BEHAVIOR OF A COMPOSITE BEAM-COLUMN SUBJECTED TO BI-DIRECTONAL BENDING
An analytical study is conducted to investigate the elastic-plastic behavior of a composite beam-column, subjected to bi-directional bending.
2 AN EXPERIMENTAL STUDY ON THE BEHAVIOR OF A COMPOSITE BEAM-COLUMN SUBJECTED TO BI-DIRECTONAL BENDING
An experimental study is conducted to obtain basic informations of the collapse mechanism of a composite beam-column subjected to bi-directional bending. Eccentric loadings are applied to total 30 specimens, where one end of the specimen is subjected to y-directional eccentricity, and the other end to the direction of 45, 90 and 135 degree from y direction. In the case of the short column, the maximum bending moment at the maximum strength lies on one of the member ends, and the maximum strength can be predicted by the full plastic theory. In the case of the long column, the maximum bending moment at the maximum strength lies on the mid span. The maximum strength is predicted as the solution of symmetric bending with initial curvature. Proposed design formula based on the above-mentioned consideration shows a good agreement with experimental results.
3 DESIGN FORMULA OF A COMPOSITE BEAM-COLUMN SUBJECTED TO BI-DIRECTIONAL BENDING
Theoretical studies are presented on the prediction of bending strength of a composite beam-column subjected to bi-directional bending. Strength of a composite beam-column, subjected to bi-directional bending, is obtained as the smaller value between the biaxial short column strength of the critical end section and that of the approximate solution of collapse at the mid-span. Proposed formula shows a good agreement with precise numerical solutions and/or experimental results.
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Report
(4 results)
Research Products
(10 results)
