Experimental studies on web crippling behaviour of hollow flange channel beams under two flange load cases

Poologanathan, Keerthan, Mahendran, Mahen, & Steau, Edward (2014) Experimental studies on web crippling behaviour of hollow flange channel beams under two flange load cases. Thin-Walled Structures, 85, pp. 207-219.

[img]
Preview
fulltext (PDF 178kB)
Submitted Version.
[img]
Preview
Figures (PDF 891kB)
Supplemental Material.
[img]
Preview
Tables (PDF 87kB)
Supplemental Material.

View at publisher

Abstract

This paper presents the details of an experimental study of a cold-formed steel hollow flange channel beam known as LiteSteel beam (LSB) subject to web crippling under End Two Flange (ETF) and Interior Two Flange (ITF) load cases. The LSB sections with two rectangular hollow flanges are made using a simultaneous cold-forming and electric resistance welding process. Due to the geometry of the LSB, and its unique residual stress characteristics and initial geometric imperfections, much of the existing research for common cold-formed steel sections is not directly applicable to LSB. Experimental and numerical studies have been carried out to evaluate the behaviour and design of LSBs subject to pure bending, predominant shear and combined actions. To date, however, no investigation has been conducted on the web crippling behaviour and strength of LSB sections. Hence an experimental study was conducted to investigate the web crippling behaviour and capacities of LSBs. Twenty-eight web crippling tests were conducted under ETF and ITF load cases, and the ultimate web crippling capacities were compared with the predictions from the design equations in AS/NZS 4600 and AISI S100. This comparison showed that AS/NZS 4600 and AISI S100 web crippling design equations are unconservative for LSB sections under ETF and ITF load cases. Hence new equations were proposed to determine the web crippling capacities of LSBs based on experimental results. Suitable design rules were also developed under the direct strength method (DSM) format.

Impact and interest:

8 citations in Scopus
Search Google Scholar™
8 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

91 since deposited on 02 Oct 2014
64 in the past twelve months

Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 76471
Item Type: Journal Article
Refereed: Yes
Keywords: Hollow Flange Channel Beams, Cold-formed Steel Beams, Web Crippling, ETF and ITF Load Cases, Direct Strength Method, Experiments
DOI: 10.1016/j.tws.2014.08.011
ISSN: 0263-8231
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 Thin-Walled Structures
Copyright Statement: This is the author’s version of a work that was accepted for publication in Thin-Walled Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Thin-Walled Structures, [VOL 85, ISSUE , (DATE)] DOI: 10.1016/j.tws.2014.08.011
Deposited On: 02 Oct 2014 01:10
Last Modified: 05 Dec 2016 08:57

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page