Behavior of circular concrete-filled steel tubular columns under pure torsion

Fa-xing Ding , Qiang Fu , Bing Wen , Qi-shi Zhou , Xue-mei Liu

Abstract

Concrete-filled steel tubular (CFT) columns are commonly used in engineering structures and always subjected to torsion in practice. This paper is thus devoted to investigate the mechanical behavior of circular CFT columns under pure torsion.3D finite element models based on reasonable material constitutive relation were established for analyzing the load-strain (T-–

Key Words

concrete-filled steel tube (CFT); pure torsion; finite element; ultimate bearing capacity; confinement effect

Address

(1) Fa-xing Ding, Qiang Fu, Bing Wen, Qi-shi Zhou — School of Civil Engineering, Central South University, Changsha 410075, P.R. China
(2) Xue-mei Liu — School of Civil Engineering and Built Environment, Queensland University of Technology, Brisbane, QLD 4001, Australia.

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