DOI QR코드

DOI QR Code

Distortional buckling formulae for cold-formed steel rack-section members

  • Silvestre, N. (Department of Civil Engineering, IST, Technical University of Lisbon) ;
  • Camotim, D. (Department of Civil Engineering, IST, Technical University of Lisbon)
  • 투고 : 2003.09.16
  • 심사 : 2004.02.03
  • 발행 : 2004.02.25

초록

The paper derives, validates and illustrates the application of GBT-based formulae to estimate distortional critical lengths and bifurcation stress resultants in cold-formed steel rack-section columns, beams and beam-columns with arbitrarily inclined mid-stiffeners and four support conditions. After a brief review of the Generalised Beam Theory (GBT) basics, the main concepts and procedures employed to obtain the formulae are addressed. Then, the GBT-based estimates are compared with exact results and, when possible, also with values yielded by formulae due to Lau and Hancock, Hancock and Teng et al. A few remarks on novel aspects of the rack-section beam-column distortional buckling behaviour, unveiled by the GBT-based approach, are also included.

키워드

참고문헌

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  8. Flexural behavior of steel storage rack base-plate upright connections with concentric anchor bolts vol.33, pp.3, 2019, https://doi.org/10.12989/scs.2019.33.3.357
  9. Distortional Buckling of Cold-Formed Steel Flanges under Stress Gradient vol.146, pp.9, 2004, https://doi.org/10.1061/(asce)st.1943-541x.0002764
  10. Improving the GBT-based buckling analysis of restrained cold-formed steel members by considering constrained deformation modes vol.165, pp.None, 2004, https://doi.org/10.1016/j.tws.2021.107928