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Behaviour of LiteSteel beams subject to combined shear and bending actions

Poologanathan, Keerthan & Mahendran, Mahen (2012) Behaviour of LiteSteel beams subject to combined shear and bending actions. In Proceedings of : 21st International Specialty Conference on Cold-formed Steel Structures, Missouri University of Science & Technology, St. Louis, Mo. (In Press)

Abstract

This paper presents the details of a numerical study of a cold-formed steel beam known as LiteSteel Beam (LSB) subject to combined shear and bending actions. The LSB sections are produced by a patented manufacturing process involving simultaneous cold-forming and electric resistance welding. They have a unique shape of a channel beam with two rectangular hollow flanges. To date, however, no investigation has been conducted into the strength of LSB sections under combined shear and bending actions. Hence a numerical study was undertaken to investigate the behaviour and strength of LSBs subject to combined shear and bending actions. In this research, finite element models of LSBs were developed to simulate the combined shear and bending behaviour and strength of LSBs. They were then validated by comparing their results with test results and used in a parametric study. Both experimental and finite element analysis results showed that the current design equations are not suitable for combined shear and bending capacities of LSBs. Hence improved design equations are proposed for the capacities of LSBs subject to combined shear and bending actions.

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ID Code: 52792
Item Type: Conference Paper
Keywords: Combined shear and bending actions, Finite element analyses, LiteSteel beams, Experiments, Hollow flanges
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 please consult the authors
Deposited On: 27 Jul 2012 13:37
Last Modified: 14 Nov 2013 23:40

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