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http://dx.doi.org/10.5000/EESK.2009.13.5.061

Experimental Study on Concrete Steel Circular Tubes Confined by Carbon Fiber Sheet under Axial Compression Loads  

Park, Jai-Woo (서울시립대학교 건축공학과)
Hong, Young-Kyun (홍익대학교 건축학과)
Hong, Gi-Soup (홍익대학교 건축학과)
Choi, Sung-Mo (서울시립대학교 건축공학과)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.13, no.5, 2009 , pp. 61-71 More about this Journal
Abstract
This paper presents the results of an experiment comparing the current circular CFT columns and circular CFT columns that were additionally confined by carbon fiber sheets (CFS) under axial loading. The main experimental parameters are the numbers of CFS layers and the diameter-to-thickness ratio. 10 specimens were prepared according to the experimental parameter plans, and axial compression tests were conducted. From the tests, the failure procedure, load-axial deformation curve, maximum axial strength, and deformation capacity of the CFT columns and confined CFT columns were compared. The test results showed that the maximum axial strengths of CFT columns additionally confined by CFS are increased higher than those of the current CFT columns, and that local buckling can be delayed due to the confinement effect of CFS.
Keywords
Concrete filled steel tube; CFT; Composite column; Confining effect;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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