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Static behavior of T-shaped concrete-filled steel tubular columns subjected to concentric and eccentric compressive loads

Yang, Y., Wang, Y., Fu, F. and Liu, J. (2015). Static behavior of T-shaped concrete-filled steel tubular columns subjected to concentric and eccentric compressive loads. Thin-Walled Structures, 95, pp. 374-388. doi: 10.1016/j.tws.2015.07.009

Abstract

In this paper, a batch of T-shaped concrete-filled steel tubular (CFST) columns, T-shaped steel tube confined concrete (STCC) columns and T-shaped reinforced concrete (RC) counterparts were tested subjected to concentric compressive load or eccentric compressive load. The battlement-shaped bar and tensile bar were developed as stiffeners to delay local buckling in tube wall. The stiffening mechanism, the failure modes of concrete and steel tubes, the strength and ductility of specimens were investigated in detail during the experimental research. A numerical modeling program was developed and verified against the experimental data. The numerical program, which incorporates the effect of the stiffeners on postponing local buckling of the tube and the confinement of the tube on concrete core, was used to carry out comprehensive parametric analysis of influencing factors on the structural behavior of T-shaped CFST columns.

Publication Type: Article
Additional Information: © 2015, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Publisher Keywords: Concrete-filled steel tubular column, T-shape, Concentric compressive load, Eccentric compressive load, Stiffener
Departments: School of Mathematics, Computer Science & Engineering > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/18623
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