Steel and Composite Structures

  • 제22권3호
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  • Pages.663-675
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  • 2016
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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Experimental study on the compression of concrete filled steel tubular latticed columns with variable cross section

  • Yang, Yan (College of Civil Engineering, Fuzhou University) ;
  • Zhou, Jun (College of Civil Engineering, Fuzhou University) ;
  • Wei, Jiangang (College of Civil Engineering, Fuzhou University) ;
  • Huang, Lei (College of Civil Engineering and Architecture, Wuyi University) ;
  • Wu, Qingxiong (College of Civil Engineering, Fuzhou University) ;
  • Chen, Baochun (College of Civil Engineering, Fuzhou University)
  • 투고 : 2016.05.06
  • 심사 : 2016.10.20
  • 발행 : 2016.10.30
⟨ 이전 논문 다음 논문 ⟩

초록

The effects of slenderness ratio, eccentricity and column slope on the load-carrying capacities and failure modes of variable and uniform concrete filled steel tubular (CFST) latticed columns under axial and eccentric compression were investigated and compared in this study. The results clearly show that all the CFST latticed columns with variable cross section exhibit an overall failure, which is similar to that of CFST latticed columns with a uniform cross section. The load-carrying capacity decreases with the increase of the slenderness ratio or the eccentricity. For 2-m specimens with a slenderness ratio of 9, the ultimate load-carrying capacity is increased by 3% and 5% for variable CFST latticed columns with a slope of 1:40 and 1:20 as compared with that of uniform CFST latticed columns, respectively. For the eccentrically compressed variable CFST latticed columns, the strain of the columns at the loading side, as well as the difference in the strain, increases from the bottom to the cap, and a more significant increase in strain is observed in the cross section closer to the column cap.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

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피인용 문헌

  1. Nonlinear Buckling Analysis of H-Type Honeycombed Composite Column with Rectangular Concrete-Filled Steel Tube Flanges pp.2093-6311, 2018, https://doi.org/10.1007/s13296-018-0084-0
  2. Numerical Investigation of Composite Behavior and Strength of Rectangular Concrete-Filled Cold-Formed Steel Tubular Stub Columns vol.14, pp.20, 2016, https://doi.org/10.3390/ma14206221