[2011] Plastic bending behaviour and section moment capacities of mono-symmetric LiteSteel beams with web openings > Selected Papers

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Selected Papers

[2011] Plastic bending behaviour and section moment capacities of mono…

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Thin-Walled Structures, vol.49, Issue 4, pp.513-522, April 2011

Plastic bending behaviour and section moment capacities of mono-symmetric LiteSteel beams with web openings

Author(s): J.K. Seo and M. Mahendran

Abstract :
Recently developed cold-formed LiteSteel beam (LSB) sections have found increasing popularity in residential, industrial and commercial buildings due to their light weight and cost-effectiveness. Currently, there is significant interest in the use of LSB sections as flexural members in floor joist systems, although they can be used as flexural and compression members in a range of building systems. The plastic bending behaviour and section moment capacity of LSB sections with web holes can be assumed to differ from those without, but have yet to be investigated. Hence, no appropriate design rules for determining the section moment capacity of LSB sections with web holes are yet available. This paper presents the results of an investigation of the plastic bending behaviour and section moment capacity of LSB sections with circular web holes. LSB sections with varying circular hole diameters and degrees of spacing were considered. The paper also describes the simplified finite element (FE) modelling technique employed in this study, which incorporates all of the significant behavioural effects that influence the plastic bending behaviour and section moment capacity of these sections. The numerical and experimental test results and associated findings are also presented.

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