Shear tests of rivet fastened rectangular hollow flange channel beams

Poologanathan, Keerthan and Mahendran, Mahen (2016) Shear tests of rivet fastened rectangular hollow flange channel beams. Journal of Constructional Steel Research, 121. pp. 330-340. ISSN 0143-974X

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Official URL: https://doi.org/10.1016/j.jcsr.2016.02.016

Abstract

The intermittently rivet fastened Rectangular Hollow Flange Channel Beam (RHFCB) is a new cold-formed hollow section proposed as an alternative to welded hollow flange channel beams. It is a monosymmetric channel section made by intermittently rivet fastening two torsionally rigid rectangular hollow flanges to a web plate. This process enables the end users to choose an effective combination of different web and flange plate sizes to achieve optimum design capacities. Recent research studies focused mainly on the shear behaviour of the most commonly used lipped channel beam and welded hollow flange beam sections. However, the shear behaviour of rivet fastened RHFCB has not been investigated. Therefore a detailed experimental study involving 24 shear tests was undertaken to investigate the shear behaviour and capacities of rivet fastened RHFCBs. Simply supported test specimens of RHFCB with aspect ratios of 1.0 and 1.5 were loaded at mid-span until failure. Comparison of experimental shear capacities with corresponding predictions from the current Australian cold-formed steel design rules showed that the current design rules are very conservative for the shear design of rivet fastened RHFCBs. Significant improvements to web shear buckling occurred due to the presence of rectangular hollow flanges while considerable post-buckling strength was also observed. Such enhancements to the shear behaviour and capacity were achieved with a rivet spacing of 100 mm. Improved design rules were proposed for rivet fastened RHFCBs based on the current shear design equations in AISI S100 and the direct strength method. This paper presents the details of this experimental investigation and the results.

Item Type: Article
Uncontrolled Keywords: Cold-formed steel beams, Rivet fastened hollow flange channel beams, Shear capacity, Experiments, Design equations, Direct strength method
Subjects: H200 Civil Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Becky Skoyles
Date Deposited: 03 Dec 2018 16:03
Last Modified: 11 Oct 2019 10:25
URI: http://nrl.northumbria.ac.uk/id/eprint/37055

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