Experimental study on cold-formed steel semi-oval hollow section columns

M. T. Chen, B. Young

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

1 Citation (Scopus)

Abstract

The semi-oval hollow section, which is composed of one semi-circular flange, one flat flange and two flat web plates, is a recently emerged cross-section type. Currently, there is no structural design guidance for this cross-section due to the lack of investigation. This paper herein presents the experimental investigation of cold-formed steel semi-oval hollow section columns. The test program comprised tensile coupon tests, geometric imperfection measurements, five fixed-ended stub column tests and nine pin-ended short column tests. The ultimate load-carrying capacities, full load-displacement responses and failure modes of the test specimens are presented. Since the current design rules do not cover the semi-oval hollow sections presented in this study, the experimental results were only compared against design strengths predicted by the Direct Strength Method, in which the design equations were originally calibrated by cold-formed steel open sections with flat elements, to assess its applicability to the semi-oval hollow section columns.

Original languageEnglish
Title of host publicationTubular Structures XVI - Proceedings of the 16th International Symposium on Tubular Structures, ISTS 2017
EditorsAmin Heidarpour, Xiao-Ling Zhao
PublisherCRC Press/Balkema
Pages549-556
Number of pages8
ISBN (Print)9780815381341
DOIs
Publication statusPublished - 1 Jan 2018
Externally publishedYes
Event16th International Symposium on Tubular Structures, ISTS 2017 - Melbourne, Australia
Duration: 4 Dec 20176 Dec 2017

Publication series

NameTubular Structures XVI - Proceedings of the 16th International Symposium on Tubular Structures, ISTS 2017

Conference

Conference16th International Symposium on Tubular Structures, ISTS 2017
Country/TerritoryAustralia
CityMelbourne
Period4/12/176/12/17

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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