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An Analytical Solution of Local–Global Interaction Buckling of Cold-Formed Steel Channel-Section Columns

  • Wei-bin Yuan
  • Yue-ting Shen
  • Nan-ting YuEmail author
  • Zhao-shui Bao
Article
  • 28 Downloads

Abstract

This paper presents an analytical approach to predict the critical load of global buckling with locally buckled channel-section columns under axial compressive loads. The effect of local deformation before global buckling is considered. The analysis is performed by using the Rayleigh–Ritz method. The analytical solution is validated by using the nonlinear finite element analysis method. Parametric study is also performed for different sections including different values of slenderness ratio, height-thickness ratio and width-height ratio. The comparison between the present approach and those taken from Chinese and American standards demonstrates that the present model provides a good approach for predicting the critical loads of steel columns involving local and global buckling interaction.

Keywords

Channel-section Columns Compression Local–global interactive buckling Finite element analysis 

Notes

Acknowledgements

The corresponding author wants to acknowledge the financial support received from the Chinese Scholarship Council for his PhD study in Plymouth University. The first author wants to acknowledge the financial supports by the National Science Foundation of Zhejiang Province (LY19E080020).

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Copyright information

© Korean Society of Steel Construction 2019

Authors and Affiliations

  • Wei-bin Yuan
    • 1
    • 2
  • Yue-ting Shen
    • 1
  • Nan-ting Yu
    • 3
    Email author
  • Zhao-shui Bao
    • 1
  1. 1.College of Civil Engineering and ArchitectureZhejiang University of TechnologyHangzhouChina
  2. 2.Key Laboratory of Civil Engineering Structures & Disaster Prevention and Mitigation Technology of Zhejiang ProvinceHangzhouChina
  3. 3.School of EngineeringUniversity of PlymouthPlymouthUK

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