Design of Rivet Fastened Rectangular Hollow Flange Channel Beams Subject to Local Buckling

Ropalin Siahaan, Keerthan Poologanathan, Mahen Mahendran

Research output: Contribution to conferencePaperpeer-review

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Abstract

The innovative, rivet fastened Rectangular Hollow Flange Channel Beam (RHFCB) is a new type of cold-formed steel section, proposed as an extension to the widely researched hollow flange beams. The hollow flange beams have garnered much interest in the past due to the sections having capacities more typically associated with hot-rolled steel sections. Various researches have been carried out to investigate the behavior of continuously welded hollow flange beams but little is known on the behavior of RHFCBs. The structural behaviour of the RHFCB is unique compared to other conventional cold-formed steel sections and its moment capacity reduces with rivet spacing. The current cold-formed steel design standards do not provide a calculation method to include the effects of intermittent fastening. In this research an extensive parametric study was conducted using validated finite element models to investigate the section moment capacity of RHFCBs. This paper presents the findings from the parametric study and proposes new design equations for the section moment capacity of RHFCBs in the Direct Strength Method format. The parametric study considers various slenderness regions, section dimensions and rivet spacing. In the new design equations, a reduction factor parameter is included to calculate the section moment capacity of RHFCBs at any rivet spacing up to 200 mm.
Original languageEnglish
Pages115-129
Number of pages15
Publication statusPublished - 7 Nov 2018
EventWei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2018 - Union Station Hotel, St Louis, United States
Duration: 7 Nov 20188 Nov 2018
https://ccfssonline.org/international-specialty-conference-2/

Conference

ConferenceWei-Wen Yu International Specialty Conference on Cold-Formed Steel Structures 2018
CountryUnited States
CitySt Louis
Period7/11/188/11/18
Internet address

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