2011 Fiscal Year Final Research Report
Experimental Study on Compression Behavior of Cold-formed SHS Columns at Elevated and Cool-down Temperatures
| Project/Area Number |
20560525
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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 | Kumamoto University |
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Principal Investigator |
OKABE Takeshi 熊本大学, 大学院・自然科学研究科, 教授 (40117338)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 耐火設計 / 鋼構造 / 冷間成形 / 柱材 / 曲げ座屈 / 局部座屈 / 高温クリープ |
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| Research Abstract |
Stub-column and column tests at elevated temperatures were performed for three different square hollow sections(SHS) of steel grade STKR400 in Japan. The main objective of these tests are to evaluate variations in the compressive behavior of steel columns due to different width-to-thickness ratios, to investigate the reduction of column strength by constant elevated temperatures, and to verify the accuracy of the finite-element model based on the shell theory. Especially it was shown that the deformation capacity of stub-column tests at various temperatures converged into almost a single curve.
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