1998 Fiscal Year Final Research Report Summary
Strength Estimation of Slender SRC Beam-Columns
| Project/Area Number |
09650631
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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 | KYUSHU UNIVERSITY |
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Principal Investigator |
TSUDA Keigo Graduate School of Human-Environment Studies, KYUSHU UNIVERSITY,Assoc.Prof., 大学院・人間環境学研究科, 助教授 (50112305)
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| Co-Investigator(Kenkyū-buntansha) |
FUJINAGA Takashi Faculty of Engineering, Kobe-University, Research Assistant, 工学部, 助手
MITANI Isao Faculty of Engineering, Kobe-University, Prof, 工学部, 教授 (70037935)
SAKAI Junichi Graduate School of Human-Environment Studies, KYUSHU UNIVERSITY,Research Assista, 大学院・人間環境学研究科, 助手 (30215587)
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| Project Period (FY) |
1997 – 1998
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| Keywords | composite column / design formula / superposed strength / buckling strength / ultimate strength |
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| Research Abstract |
In AIJ (Architectural Institute of Japan) design formula for slender steel- concrete composite columns, the modified method of the superposed strength of a column section is adopted with the consideration on the effect of additional bending moment (Pdelta moment). We have already proposed an equation for evaluating the strength of slender concrete columns, and using this, we showed that the strengths of concrete filled steel tubular (CFT) columns and RC columns are well predicted. In this research, with respect to the strength of SRC columns, the end moment -axial force interaction relations are calculated assuming a sine curve deflected shape of the beam-column. In addition to the analytical work, experiment of eccentric compressive load at both end of a column was performed. As the experimental parameters, buckling length- section depth ratio, magnitude of eccentricity are selected. On the basis of the experimental and analytical results, the superposed method for evaluating the maximum strength of slender SRC columns is examined, and proposed.
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