Initial Imperfection Characteristics of Mono-Symmetric LiteSteel Beams for Numerical Studies

Seo, Jung Kwan, Anapayan, Tharmarajah, & Mahendran, Mahen (2008) Initial Imperfection Characteristics of Mono-Symmetric LiteSteel Beams for Numerical Studies. In Mahendran, Mahen (Ed.) 5th International Conference on Thin-Walled Structures : ICTWS 2008 : Innovations in Thin-walled Structures, 18-20 June 2008, Brisbane.


The aim of the present study is to investigate the initial imperfection characteristics of the new mono-symmetric LiteSteel beams (LSB) and their effects on the moment capacity. A unique manufacturing process of simultaneous cold-rolling and electric resistance welding process is used in the manufacturing of LSBs that can lead to unique initial imperfections in the form of initial geometric distortions and residual stresses. Such imperfection characteristics are unlikely to be present in conventional steel beam sections. In this study, the imperfections in LSBs were measured and their effects on the moment capacities were investigated using finite element analyses. It also included a sensitivity study of geometric imperfections and residual stresses on LSB moment capacities. This paper presents the details of this study, the results, and useful recommendations for numerical modelling, design and manufacturing of LSBs.

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ID Code: 13870
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2008 (please consult author)
Deposited On: 25 Jun 2008 00:00
Last Modified: 29 Feb 2012 13:47

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