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Steel & Composite structures : an international journal v.29 no.2, 2018년, pp.151 - 159   SCIE
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Axial compressive behavior of concrete-filled steel tube columns with stiffeners

Liang, Wei   (School of Architecture and Environment, Sichuan University  ); Dong, Jiangfeng   (School of Architecture and Environment, Sichuan University  ); Wang, Qingyuan   (Key Laboratory of Deep Underground Science and Engineering, Ministry of Education, Sichuan University  );
  • 초록

    In order to reduce the deformation and delay the local buckling of concrete filled steel tube (CFST) columns, strengthening the structures with stiffeners is an effective method. In this paper, a new stiffening method with inclined stiffeners was used to investigate the behaviors of short CFST columns under axial compression. Besides, a three-dimensional nonlinear finite element (FE) model was applied to simulate the mechanical performances, including the total deformation, local buckling, and stress-strain relationship. Revised constitutive models of stiffened steel tube and confined concrete are proposed. A good agreement was achieved between the test and FE results. Furthermore, the calculated results of load capacity by using a simplified method also show a good correlation with experimental data.


  • 주제어

    concrete filled steel tube (CFST) columns .   self-compacting concrete (SCC) .   stiffening .   axial compression .   finite element analysis.  

  • 참고문헌 (28)

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