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碩士 === 國立中央大學 === 土木工程研究所 === 90 === Concrete-filled tubes (CFT) are suitable structural forms for earthquake-resistant designs. The infilled concrete provides effective compressive strength and lateral support to the steel tube so that tube local buckling can be delayed and member ductility can be...
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2002
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| Online Access: | http://ndltd.ncl.edu.tw/handle/97165416310636604510 |
| Summary: | 碩士 === 國立中央大學 === 土木工程研究所 === 90 === Concrete-filled tubes (CFT) are suitable structural forms for
earthquake-resistant designs. The infilled concrete provides effective
compressive strength and lateral support to the steel tube so that tube
local buckling can be delayed and member ductility can be achieved. It
has been found in previous study on steel-concrete composite behavior
that the performance of member under combined loading, particularly
coupled with torsion, is affected by the sectional configurations.
Therefore, study on the effect of sectional geometry on the seismic
performance of CFT members is also essential.
This study is focused on the experimental investigation of
relationship between member performance and the section’s shape factor.
Test results show that the stiffness deterioration rates increase when the
sections’ shape factors decrease. It is also found that the losses in strength
and energy dissipation capacity for members subjected to loading
combined with torsion are more significant when the sections’ shape
factors increase
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