Cold-formed steel built-up closed sections with intermediate stiffeners

Ben Young, Ju Chen

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

1 Citation (Scopus)

Abstract

The paper presents a test program on innovative cold-formed steel built-up closed sections with intermediate stiffeners. The test specimens were firstly brake-pressed from structural steel sheets to form open sections with intermediate web stiffeners, then two of the open sections were connected at their flanges using self-tapping screws to form the built-up closed sections. The innovative specimens were compressed between fixed ends condition. The material properties of the column specimens were obtained by tensile coupon tests. The column test strengths were compared with the design strengths calculated using the direct strength method. Three different methods were used to obtain the local and distortional buckling stresses for the calculation of the direct strength method. Generally, it is shown that the direct strength method using single section to obtain the buckling stresses are conservative.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Steel, Space and Composite Structures, Yantai & Beijing, China
Pages43-53
Number of pages11
Publication statusPublished - 1 Jan 2007
Externally publishedYes
Event9th International Conference on Steel, Space and Composite Structures - Yantai and Beijing, China
Duration: 10 Oct 200715 Oct 2007

Conference

Conference9th International Conference on Steel, Space and Composite Structures
Country/TerritoryChina
CityYantai and Beijing
Period10/10/0715/10/07

Keywords

  • Built-up sections
  • Cold-formed steel
  • Columns
  • Distortional buckling
  • Experimental investigation
  • Local buckling
  • Steel structures
  • Structural design
  • Thin-walled structures

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Electronic, Optical and Magnetic Materials

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