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

Siu Shu Eddie Lam; Kwok Fai Chung; X. P. Wang

doi:10.1016/j.tws.2006.10.011

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

Siu Shu Eddie Lam, Kwok Fai Chung, X. P. Wang

Research output: Journal article publication › Journal article › Academic research › peer-review

23 Citations (Scopus)

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 language	English
Pages (from-to)	1077-1083
Number of pages	7
Journal	Thin-Walled Structures
Volume	44
Issue number	10
DOIs	https://doi.org/10.1016/j.tws.2006.10.011
Publication status	Published - 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

More information

10.1016/j.tws.2006.10.011

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title = "Load-carrying capacities of cold-formed steel cut stub columns with lipped C-section",

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.",

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AB - 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.

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

Abstract

Keywords

ASJC Scopus subject areas

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