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http://dx.doi.org/10.12989/scs.2014.17.4.517

Experimental study on reinforced concrete filled circular steel tubular columns  

Hua, Wei (College of Architectural Engineering, Shenyang University of Technology)
Wang, Hai-Jun (College of Architectural Engineering, Shenyang University of Technology)
Hasegawa, Akira (Dept. of Environmental and Civil Engineering, Hachinohe University of Technology)
Publication Information
Steel and Composite Structures / v.17, no.4, 2014 , pp. 517-533 More about this Journal
Abstract
Experimental results of 39 specimens including concrete columns, RC columns, hollow steel tube columns, concrete filled steel tubular (CFT) columns, and reinforced concrete filled steel tubular (RCFT) columns are presented. Based on the experimental results, the load-carrying capacity, confined effect, ductility, and failure mode of test columns are investigated. The effects of the main factors such as width-thickness ratio (the ratio of external diameter and wall thickness for steel tubes), concrete strength, steel tube with or without rib, and arrangement of reinforcing bars on the mechanical characteristics of columns are discussed as well. The differences between CFT and RCFT are compared. As a result, it is thought that strength, rigidity and ductility of RCFT are improved; especially strength and ductility are improved after the peak of load-displacement curve.
Keywords
reinforced concrete filled steel tubular column; compression test; bearing capacity; ductility ratio; strength;
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Times Cited By KSCI : 1  (Citation Analysis)
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