Steel and Composite Structures

  • 제18권1호
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  • Pages.71-90
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  • 2015
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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 behaviour of rectangular concrete-filled cold-formed steel tubular columns with different loading methods

  • Qu, Xiushu (School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture) ;
  • Chen, Zhihua (School of Civil Engineering, Tianjin University) ;
  • Sun, Guojun (School of Civil Engineering, Tianjin University)
  • 투고 : 2012.12.14
  • 심사 : 2014.05.21
  • 발행 : 2015.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

Axial compression tests have been carried out on 18 rectangular concrete-filled cold-formed steel tubular (CFST) columns with the aim of investigating the axial behaviour of rectangular CFST columns under different loading methods (steel loaded-first and full-section loaded methods). The influence of different loading methods on the ultimate strength of the specimens was compared and the development of Poisson's Ratio as it responds to an increasing load was reported and analysed. Then, the relationship between the constraining factor and the strength index, and the relationship between the constraining factor and ductility index of the specimens, were both discussed. Furthermore, the test results of the full-section loaded specimens were compared with five international code predicted values, and an equation was derived to predict the axial carrying capacity for rectangular CFST columns with a steel loaded-first loading method.

키워드

과제정보

연구 과제번호 : Research on Cooperativity and Composite Mechanical Performance for High-Performance Rectangular Concrete-filled Steel Tubular Columns

연구 과제 주관 기관 : National Natural Scientific Fund

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  13. Numerical Investigation of the Composite Action of Axially Compressed Concrete-Filled Circular Aluminum Alloy Tubular Stub Columns vol.14, pp.9, 2021, https://doi.org/10.3390/ma14092435
  14. Numerical Investigation of Composite Behavior and Strength of Rectangular Concrete-Filled Cold-Formed Steel Tubular Stub Columns vol.14, pp.20, 2015, https://doi.org/10.3390/ma14206221
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  16. Simplified 2D Finite Element Model for Calculation of the Bearing Capacity of Eccentrically Compressed Concrete-Filled Steel Tubular Columns vol.11, pp.24, 2021, https://doi.org/10.3390/app112411645
  17. Behaviors of FRP confined rectangular concrete-filled thin-walled steel tubular stub columns using high-strength materials under axial load vol.280, pp.None, 2015, https://doi.org/10.1016/j.compstruct.2021.114915