Steel and Composite Structures

  • 제29권2호
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  • Pages.151-159
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  • 2018
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

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)
  • 투고 : 2017.11.29
  • 심사 : 2018.09.11
  • 발행 : 2018.10.25
⟨ 이전 논문 다음 논문 ⟩

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.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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피인용 문헌

  1. Flexural performance of cold-formed square CFST beams strengthened with internal stiffeners vol.34, pp.1, 2018, https://doi.org/10.12989/scs.2020.34.1.123
  2. D-Shaped Concrete-Filled Steel Tube Structure in Bridge Engineering vol.2021, pp.None, 2021, https://doi.org/10.1155/2021/6611003
  3. Fully nonlinear inelastic analysis of rectangular CFST frames with semi-rigid connections vol.38, pp.5, 2021, https://doi.org/10.12989/scs.2021.38.5.497
  4. Analytical behavior of built-up square concrete-filled steel tubular columns under combined preload and axial compression vol.38, pp.6, 2018, https://doi.org/10.12989/scs.2021.38.6.617
  5. Seismic behavior of cross-shaped concrete-filled steel tubular columns vol.40, pp.3, 2021, https://doi.org/10.12989/scs.2021.40.3.405