Web crippling capacities of rivet fastened rectangular hollow flange channel beams under one flange load cases

Steau, Edward, Poologanathan, Keerthan, & Mahendran, Mahen (2016) Web crippling capacities of rivet fastened rectangular hollow flange channel beams under one flange load cases. Steel Construction Design and Research, 9(3), pp. 222-239.

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Abstract

A new rivet fastened rectangular hollow flange channel beam (RHFCB) was proposed using an intermittently rivet fastening process as an alternative to welded beams. The rivet fastened RHFCB allows greater section optimisation and flexibility in designing suitable combinations of web and flange widths and thicknesses for many industrial applications. In the industrial applications of rivet fastened RHFCBs as flooring, roofing or modular building systems, their flanges will be fastened to supports, which will provide increased web crippling capacities. However no research has been conducted to investigate the web crippling capacities of RHFCBs with flanges unfastened and fastened to supports under one-flange load cases. Similarly the current design rules for cold-formed steel sections are not suitable for rivet fastened RHFCBs due to their two hollow flanges. Hence an experimental study was conducted to investigate the web crippling behaviour and capacities of rivet fastened RHFCBs based on the new AISI S909 standard test method. It included rivet fastened RHFCBs with flanges unfastened and fastened to supports under End One Flange (EOF) and Interior One Flange (IOF) load cases. Tests with flanges fastened to supports showed that web crippling capacities increased by 39 and 5% for EOF and IOF load cases. Comparisons of experimental web crippling capacity results with predictions using the current AS/NZS 4600 and AISI S100 design standards showed that web crippling design equations are conservative for rivet fastened RHFCBs with flanges unfastened and fastened to supports under EOF and IOF load cases. Hence new equations are proposed to determine the web crippling capacities of rivet fastened RHFCBs. This paper presents the details of this web crippling experimental study of rivet fastened RHFCB sections and the results.

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ID Code: 97864
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Cold-formed Steel Beams, Rivet Fastened Rectangular Hollow Flange Channel Beams, Flanges Unfastened and Fastened to Supports, Web Crippling, Combined Web Crippling and Flange Crushing, EOF and IOF Load Cases, Experiments
DOI: 10.1002/stco.201500009
ISSN: 1867-0520
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 2016 Wilhelm Ernst und Sohn
Deposited On: 02 Aug 2016 23:24
Last Modified: 20 Oct 2016 01:57

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