Load-carrying capacities of cold-formed steel cut stub columns with lipped C-section

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Cutting roll-formed steel lipped C-sections may produce different extent of cross section distortion along the lengths of the sections and may lead to additional initial geometric imperfections. Ten stub columns cut from two different sections were tested under axial compression. Flanges of the stub columns experienced distortional mode of failure, whereas the webs showed signs of local buckling failures. Ultimate compressive strengths obtained from the test results were 75-77% of the strengths estimated based on BS5950:Part 5. This indicates that geometric imperfections caused by cutting may significantly reduce the ultimate strength of stub columns.
Original languageEnglish
Pages (from-to)1077-1083
Number of pages7
JournalThin-Walled Structures
Volume44
Issue number10
DOIs
Publication statusPublished - 1 Oct 2007

Keywords

  • BS5950
  • Cold-formed steel
  • Compressive testing
  • Cut
  • Lipped C-section
  • Stub columns
  • Ultimate strength

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering

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