Design proposals for single angle member under eccentric compression force

A. Hussain, Yao Peng Liu, Siu Lai Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Single angle members are mostly subjected to eccentric forces due to the end connections at their legs. Current design codes generally allow for considering the advantage of the plastic reserve of single angle cross-sections. However, the available interaction equations to combine the effect of biaxial bending are linear which contradict the fact that the plastic surface of the single angle cross-sections is nonlinear as provided in the literature. In the current study, a reliable and efficient three-dimensional finite element model (FE) is provided to investigate the behavior of the member under eccentric forces. The well recognized residual stress distribution pattern together with the initial geometrical imperfections are incorporated in the current model. Based on the results of the FE model, the elastic flexural and flexural-torsional buckling loads for equal and unequal leg angle members are provided using a simplified equation rather than the complex ones available in current design codes. Finally, a new buckling curves taking the Eurocode design rules into account, are presented for single angle member subjected to eccentric load about both major and minor principal axes.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018
EditorsSiu Lai Chan, Tak-Ming Chan, Songye Zhu
PublisherHong Kong Institution of Steel Construction
ISBN (Electronic)9889914093, 9789889914097
DOIs
Publication statusPublished - Dec 2018
Event9th International Conference on Advances in Steel Structures, ICASS 2018 - Hong Kong, China
Duration: 5 Dec 20187 Dec 2018

Publication series

NameProceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018

Conference

Conference9th International Conference on Advances in Steel Structures, ICASS 2018
Country/TerritoryChina
CityHong Kong
Period5/12/187/12/18

Keywords

  • Bi-axial bending
  • Eccentric compression
  • Plastic and compact cross-sections
  • Plastic design
  • Single angle

ASJC Scopus subject areas

  • Metals and Alloys
  • Civil and Structural Engineering

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