Web crippling tests of hollow flange channel beams – end one flange and interior one flange load cases

Poologanathan, Keerthan & Mahendran, Mahen (2014) Web crippling tests of hollow flange channel beams – end one flange and interior one flange load cases. In 7th European Conference on Steel and Composite Structures, 10-12 September 2014, University of Napoli Federico II, Naples. (In Press)

Abstract

LiteSteel beam (LSB) is a new cold-formed steel hollow flange channel section produced using a patented manufacturing process involving simultaneous cold-forming and dual electric resistance welding. The LSBs were commonly used as floor joists and bearers with web openings in residential, industrial and commercial buildings. Due to the unique geometry of LSBs, as well as its unique residual stress characteristics and initial geometric imperfections resultant of manufacturing processes, much of the existing research for common cold-formed steel sections is not directly applicable to LSBs. Many research studies have been carried out to evaluate the behaviour and design of LSBs subject to pure bending actions, predominant shear and combined actions. However, to date, no investigation has been conducted into the web crippling behaviour and strength of LSB sections. Hence detailed experimental studies were conducted to investigate the web crippling behaviour and strengths of LSBs under EOF (End One Flange) and IOF (Interior One Flange) load cases. A total of 26 web crippling tests was conducted and the results were compared with current AS/NZS 4600 design rules. This comparison showed that AS/NZS 4600 (SA, 2005) design rules are very conservative for LSB sections under EOF and IOF load cases. Suitable design equations have been proposed to determine the web crippling capacity of LSBs based on experimental results. This paper presents the details of this experimental study on the web crippling behaviour and strengths of LiteSteel beams under EOF and IOF load cases.

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ID Code: 70510
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: LiteSteel Beams, Web Crippling, Cold-formed Steel Beams, EOF and IOF load cases , Experiments, Hollow Flange
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 2014 [please consult the author]
Deposited On: 28 Apr 2014 04:40
Last Modified: 12 Jul 2015 21:53

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