Equivalent RHS approach for the design of EHS in axial compression or bending

Tarana Haque, Jeffrey A. Packer, Xiao Ling Zhao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)


The use of steel elliptical hollow sections (EHS) has grown steadily, but the implementation of EHS has been done without appropriate design guidelines or procedures. A pragmatic objective has been to develop a section conversion method to transform the EHS into an equivalent shape for which design equations and guidelines already exist. This paper further explores the equivalent RHS (rectangular hollow section) approach for member design. By using the equivalent RHS approach to convert the EHS into an equivalent RHS, the validity of existing RHS cross-section classification limits and member design equations are demonstrated for EHS columns subjected to axial compression that buckle about the major axis and the minor axis, and EHS beams subjected to bending about the major axis and the minor axis. The equivalent RHS approach is a single consistent and rational procedure, and it is shown to be a viable method for designing EHS compression members and flexural members.

Original languageEnglish
Pages (from-to)107-120
Number of pages14
JournalAdvances in Structural Engineering
Issue number1
Publication statusPublished - 1 Jan 2012
Externally publishedYes


  • compression and flexural members
  • elliptical hollow sections
  • steel structures
  • tubes

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction


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