Steel and Composite Structures

  • 제8권2호
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  • Pages.115-128
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  • 2008
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Ultimate strength of rectangular concrete-filled steel tubular (CFT) stub columns under axial compression

  • Huang, Yan-Sheng (Department of Civil Engineering, South China University of Technology) ;
  • Long, Yue-Ling (Department of Civil Engineering, South China University of Technology) ;
  • Cai, Jian (Department of Civil Engineering, South China University of Technology)
  • 투고 : 2007.12.05
  • 심사 : 2008.03.20
  • 발행 : 2008.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

A method is proposed to estimate the ultimate strength of rectangular concrete-filled steel tubular (CFT) stub columns under axial compression. The ultimate strength of concrete core is determined by using the conception of the effective lateral confining pressure and a failure criterion of concrete under true triaxial compression, which takes into account the difference between the lateral confining pressure provided by the broad faces of the steel tube and that provided by the narrow faces of the steel tube. The longitudinal steel strength of broad faces and that of the narrow faces of the steel tube are calculated respectively due to that buckling tends to occur earlier and more extensively on the broader faces. Finally, the proposed method is verified with experimental results. Corresponding values of ultimate strength calculated by ACI (2005), AISC (1999) and GJB4142-2000 are given respectively for comparison. It is found from comparison that the proposed method shows a good agreement with the experimental results.

키워드

참고문헌

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피인용 문헌

  1. Finite Element Modeling of Composite Concrete-Steel Columns / Numeryczne Modelowanie Zespolonych Słupów Stalowo-Betonowych vol.57, pp.4, 2011, https://doi.org/10.2478/v.10169-011-0027-z
  2. Finite element study the seismic behavior of connection to replace the continuity plates in (NFT/CFT) steel columns vol.21, pp.1, 2016, https://doi.org/10.12989/scs.2016.21.1.073
  3. Confinement of concrete in two-chord battened composite columns vol.19, pp.6, 2015, https://doi.org/10.12989/scs.2015.19.6.1511
  4. Reliability-based assessment of American and European specifications for square CFT stub columns vol.19, pp.4, 2015, https://doi.org/10.12989/scs.2015.19.4.811
  5. Pseudo-static tests of terminal stirrup-confined concrete-filled rectangular steel tubular columns vol.144, 2018, https://doi.org/10.1016/j.jcsr.2018.01.017
  6. Uniaxial Stress-Strain Model for Concrete Confined by Rectangular Steel Tubes vol.163-167, pp.1662-8985, 2010, https://doi.org/10.4028/www.scientific.net/AMR.163-167.1005
  7. Ductility of Concrete-Filled Steel Box Columns with Binding Bars Subjected to Axial Compression vol.255-260, pp.1662-8985, 2011, https://doi.org/10.4028/www.scientific.net/AMR.255-260.2584
  8. A New Method to Assess Ductility of CFT Box Columns with Binding Bars under Axial Compression vol.446-449, pp.1662-8985, 2012, https://doi.org/10.4028/www.scientific.net/AMR.446-449.78
  9. An Analytical Study of Square CFT Columns in Bracing Connection Subjected to Axial Loading vol.2018, pp.1687-8094, 2018, https://doi.org/10.1155/2018/8618937
  10. Theoretical Stress–Strain Model for Concrete in Steel-Reinforced Concrete Columns vol.145, pp.4, 2019, https://doi.org/10.1061/(ASCE)ST.1943-541X.0002289
  11. Behaviors of concrete filled square steel tubes confined by carbon fiber sheets (CFS) under compression and cyclic loads vol.10, pp.2, 2008, https://doi.org/10.12989/scs.2010.10.2.187
  12. The 3D-numerical simulation on failure process of concrete-filled tubular (CFT) stub columns under uniaxial compression vol.9, pp.4, 2008, https://doi.org/10.12989/cac.2012.9.4.257
  13. Structural behaviour of tapered concrete-filled steel composite (TCFSC) columns subjected to eccentric loading vol.9, pp.6, 2008, https://doi.org/10.12989/cac.2012.9.6.403
  14. Uni-axial behaviour of normal-strength CFDST columns with external steel rings vol.13, pp.6, 2008, https://doi.org/10.12989/scs.2012.13.6.587
  15. Uni-axial behaviour of normal-strength concrete-filled-steel-tube columns with external confinement vol.3, pp.6, 2012, https://doi.org/10.12989/eas.2012.3.6.889
  16. Behavior of circular thin-walled steel tube confined concrete stub columns vol.23, pp.2, 2008, https://doi.org/10.12989/scs.2017.23.2.229
  17. Composite action of notched circular CFT stub columns under axial compression vol.24, pp.3, 2008, https://doi.org/10.12989/scs.2017.24.3.309
  18. Local buckling of rectangular steel tubes filled with concrete vol.31, pp.2, 2008, https://doi.org/10.12989/scs.2019.31.2.201
  19. A new model for calculating the elastic local buckling stress of steel plates in square CFST columns vol.171, pp.None, 2008, https://doi.org/10.1016/j.tws.2021.108756