Steel and Composite Structures

  • 제14권3호
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  • Pages.267-282
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  • 2013
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Structural design of steel fibre reinforced concrete in-filled steel circular columns

  • Eltobgy, Hanan H. (Civil Engineering Department, Faculty of Engineering, Benha University (Shoubra district))
  • 투고 : 2012.08.22
  • 심사 : 2012.12.15
  • 발행 : 2013.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents the behavior and design of axially loaded normal and steel fiber reinforced concrete in-filled steel tube (SFRCFT) columns, to examine the contribution of steel fibers on the compressive strength of the composite columns. Non-linear finite element analysis model (FEA) using ANSYS software has been developed and used in the analysis. The confinement effect provided by the steel tube is considered in the analysis. Comparisons of the analytical model results, along with other available experimental outputs from literature have been done to verify the structural model. The compressive strength and stiffness of SFRC composite columns were discussed, and the interpretation of the FEA model results has indicated that, the use of SFRC as infill material has a considerable effect on the strength and stiffness of the composite column. The analytical model results were compared with the existing design methods of composite columns - (EC4, AISC/LRFD and the Egyptian code of Practice for Steel Construction, ECPSC/LRFD). The comparison indicated that, the results of the FEA model were evaluated to an acceptable limit of accuracy. The code design equations were modified to introduce the steel fiber effect and compared with the results of the FEA model for verification.

키워드

참고문헌

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피인용 문헌

  1. Inelastic analysis for the post-collapse behavior of concrete encased steel composite columns under axial compression vol.19, pp.5, 2015, https://doi.org/10.12989/scs.2015.19.5.1237
  2. Seismic behavior of SFRC shear wall with CFST columns vol.28, pp.5, 2013, https://doi.org/10.12989/scs.2018.28.5.527
  3. Damage and stiffness research on steel shape steel fiber reinforced concrete composite beams vol.24, pp.6, 2013, https://doi.org/10.12989/cac.2019.24.6.513