Hencky Bar-Chain model for buckling analysis of non-symmetric portal frames

W. H. Pan*, C. M. Wang, H. Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

This paper presents the development of the Hencky bar-chain model (HBM) for the buckling analysis of non-symmetric portal frames under vertical compressive axial loads on the columns. Generic stiffness and geometric matrices are derived for the frame buckling analysis. Based on these matrices, a simple computer code is developed to determine the buckling loads. Illustrative frame buckling problems are solved to demonstrate the ease and simplicity of the HBM for analysis of different and complex design conditions imposed on the frames. The advantages of consistent formulation, localized model modifications, and convenience in obtaining the buckling modes are further noted for the HBM.

Original languageEnglish
Pages (from-to)391-402
Number of pages12
JournalEngineering Structures
Volume182
DOIs
Publication statusPublished - 1 Mar 2019
Externally publishedYes

Keywords

  • Buckling
  • Discrete model
  • Euler–Bernoulli beam theory (EBT)
  • Exact solution
  • Frames
  • Hencky bar-chain model (HBM)

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