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

Keerthan, Poologanathan; Mahendran, Mahen; Steau, Edward

doi:10.1016/j.tws.2014.08.011

Cited by 77 publications

(46 citation statements)

References 13 publications

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“…Recent research on web crippling of cold-formed steel channel sections, other than that by Uzzaman et al [2][3][4][5] who again considered only the two-flange loading conditions, has not covered the case of holes [12][13][14][15].…”

mentioning

confidence: 99%

Web crippling behaviour of cold-formed steel channel sections with web holes subjected to interior-one-flange loading condition-Part I: Experimental and numerical investigation

Liu

Uzzaman

Lim

et al. 2017

Thin-Walled Structures

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mentioning

confidence: 99%

Web crippling behaviour of cold-formed steel channel sections with web holes subjected to interior-one-flange loading condition-Part I: Experimental and numerical investigation

Liu

Uzzaman

Lim

et al. 2017

Thin-Walled Structures

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“…However, past research is primarily based on experimental studies of open cold-formed steel sections (C-, Z-, hat-shaped and built-up sections). Limited research only has been conducted on the web crippling behaviour of welded HFCBs (LSB) [12].…”

Section: Web Crippling Of Cold-formed Steel Beamsmentioning

confidence: 99%

“…2) and LCBs subjected to web crippling under ETF and ITF load cases. Their web crippling tests included 36 [12] conducted experimental studies on welded LSBs (see Fig. 1(a)) subjected to web crippling under ETF and ITF load cases.…”

Section: Past Research On Web Cripplingmentioning

confidence: 99%

“…LSB was manufactured from a single strip of high strength steel using a combined cold-forming and dual electric resistance welding process. The structural behaviour of LSB has been investigated by many researchers in the past [1][2][3][4][5][6][7][8][9][10][11][12], which led to the use of LSB in many applications in buildings. Despite this, the OATM discontinued LSB production in 2012.…”

Section: Introductionmentioning

confidence: 99%

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Web crippling tests of Rivet Fastened Rectangular Hollow Flange Channel Beams under Two Flange Load Cases

Steau

Mahendran

Keerthan

2015

Thin-Walled Structures

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Cold-formed steel beams Web crippling Combined web crippling and flange crushing ETF and ITF load cases and experiments a b s t r a c t Recent research on hollow flange beams has led to the development of an innovative rectangular hollow flange channel beam (RHFCB) for use in floor systems. The new RHFCB is a mono-symmetric structural section made by intermittently rivet fastening two torsionally rigid closed rectangular hollow flanges to a web plate element, which allows section optimisation by selecting appropriate combinations of web and flange widths and thicknesses. However, the current design rules for cold-formed steel sections are not directly applicable to rivet fastened RHFCBs. To date, no investigation has been conducted on their web crippling behaviour and strengths. Hence an experimental study was conducted to investigate the web crippling behaviour and capacities of rivet fastened RHFCBs under End Two Flange (ETF) and Interior Two Flange (ITF) load cases. It showed that RHFCBs failed by web crippling, flange crushing and their combinations. Comparison of ultimate web crippling capacities with the predictions from the design equations in AS/NZS 4600 and AISI S100 showed that the current design equations are unconservative for rivet fastened RHFCB sections under ETF and ITF load cases. Hence new equations were proposed to determine the web crippling capacities of rivet fastened RHFCBs. These equations can also be used to predict the capacities of RHFCBs subject to combined web crippling and flange crushing conservatively. However, new capacity equations were proposed in the case of flange crushing failures that occurred in thinner flanges with smaller bearing lengths. This paper presents the details of this web crippling experimental study of RHFCB sections and the results.

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“…Other similar work described in the literature include that of Yu and Davis [8] who studied the case of both circular and square web openings located and centred beneath the bearing plates under interior-oneflange loading condition, Sivakumaran and Zielonka [9] who considered the case of rectangular web openings located and centred beneath the bearing plates under the interior-one-flange loading condition, and Zhou and Young [10] who proposed strength reduction factor equations for aluminium alloy square sections with circular web openings located and centred beneath the bearing plates under end-two-flange and interior-two-flange loading conditions. Recent research on web crippling of cold-formed steel channel -sections, other than that by Uzzaman et al who again considered only the two-flange loading conditions, has not covered the case of holes [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of web holes on web crippling strength of cold-formed steel channel sections under end-one-flange loading condition - Part II: Parametric study and proposed design equations

Liu

Uzzaman

Lim

et al. 2016

Thin-Walled Structures

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General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. EFFECT OF WEB HOLES ON WEB CRIPPLING STRENGTH OF COLD-FORMED STEEL CHANNEL SECTIONS UNDER END-ONE-FLANGE LOADING CONDITION -PART II: PARAMETRIC STUDY AND PROPOSED DESIGN EQUATIONS General rightsCopyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policyThe Research Portal is Queen's institutional repository that provides access to Queen's research output. Every effort has been made to ensure that content in the Research Portal does not infringe any person's rights, or applicable UK laws. If you discover content in the Research Portal that you believe breaches copyright or violates any law, please contact openaccess@qub.ac.uk. AbstractA parametric study of cold-formed steel sections with web openings subjected to web crippling under end-one-flange (EOF) loading condition is undertaken, using finite element analysis, to investigate the effects of web holes and cross-section sizes. The holes are located either centred above the bearing plates or with a horizontal clear distance to the near edge of the bearing plates. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the depth of the web, the ratio of the length of bearing plates to the flat depth of the web and the location of the holes as defined by the distance of the hole from the edge of the bearing plate divided by the flat depth of web. In this study, design recommendations in the form of web crippling strength reduction factor equations are proposed, which are conservative when compared with the experimental and finite element results.

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

Cited by 77 publications

References 13 publications

Web crippling behaviour of cold-formed steel channel sections with web holes subjected to interior-one-flange loading condition-Part I: Experimental and numerical investigation

Web crippling behaviour of cold-formed steel channel sections with web holes subjected to interior-one-flange loading condition-Part I: Experimental and numerical investigation

Web crippling tests of Rivet Fastened Rectangular Hollow Flange Channel Beams under Two Flange Load Cases

Effect of web holes on web crippling strength of cold-formed steel channel sections under end-one-flange loading condition - Part II: Parametric study and proposed design equations

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