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http://dx.doi.org/10.12989/sem.2015.56.5.727

A study on nonlinear analysis and confinement effect of reinforced concrete filled steel tubular column  

Xiamuxi, Alifujiang (College of Architecture and Civil Engineering, Xinjiang University)
Hasegawa, Akira (Department of Civil Engineering and Architecture, Hachinohe Institute of Technology)
Yu, Jiang (College of Architecture and Civil Engineering, Xinjiang University)
Publication Information
Structural Engineering and Mechanics / v.56, no.5, 2015 , pp. 727-743 More about this Journal
Abstract
According to former studies, the mechanical properties of reinforced concrete filled tubular steel (RCFT) columns differed greatly from that of concrete filled steel tubular (CFT) columns because of interaction of inserted reinforcement in RCFT. Employing an experiment-based verification policy, a general FE nonlinear analysis model was developed to analyze the mechanical behavior and failure mechanism of RCFT columns under uniaxial compression. The reasonable stress-strain relationships were suggested for confined concrete, reinforcements and steel tube in the model. The mechanism for shear failure of concrete core was found out in the numerical simulation, and a none-conventional method and equation for evaluating the confinement effect of RCFT were proposed.
Keywords
RCFT; CFT; nonlinear analysis; confinement effect; shear failure;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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