Design of stainless steel sections with circular openings in shear

Lawson, R.M.; Basta, Antoine; Uzzaman, Asraf

doi:10.1016/j.jcsr.2015.04.017

Cited by 27 publications

(14 citation statements)

References 14 publications

(16 reference statements)

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“…The design methods in [4,5] are based on the same theory as described in [6] but there are slight differences among them because they were developed by different parties. The behavior of cellular beam is still being investigated [7][8][9]. The use of cellular beams in Vietnam is limited due to the shortage of steel profiles in local market and the lack of a design guide.…”

Section: (A) Castellated Beam From Hot-rolled Profilementioning

confidence: 99%

Simplified design method and parametric study of composite cellular beam

Nguyen¹

2018

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Nowadays, with the development of cutting and welding technologies, steel beams with regular circular openings, called cellular beams, have been widely used for construction. The cellular beams could be designed either as steel beam or composite beam when headed shear connectors connect concrete slab to top flange of steel beam. This paper presents a procedure to design cellular composite beams according to EN 1994-1-1. In addition, a parametric study is carried out to evaluate the influence of circular opening geometry to ultimate load and failure mode of a series of cellular composite beams. As a result, an optimal dimension of cellular beam is proposed. Article history: Received 28 February 2018, Revised 22 March 2018, Accepted 27 April 2018

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Section: (A) Castellated Beam From Hot-rolled Profilementioning

confidence: 99%

Simplified design method and parametric study of composite cellular beam

Nguyen¹

2018

stce

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“…The use of cold-formed stainless steel in structural applications is growing steadily (Dai and Lam 2010, Theofanous and Gardner 2011, Kiymaz and Seckin 2014 and the use of web openings in such sections is becoming increasingly popular (Lawson et. al.…”

Section: Introductionmentioning

confidence: 99%

“…More recently, Zhou and Young (2006 have considered the web crippling strength of cold-formed stainless steel tubular sections. Research by Lawson et al (2015), while concerned with circular web openings, focussed on the bending strength of the sections and not on the web crippling strength under concentrated loads.…”

Section: Introductionmentioning

confidence: 99%

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Web crippling strength of cold-formed stainless steel lipped channel-sections with web openings subjected to interior-one-flange loading condition

Yousefi

Uzzaman²,

Liu

et al. 2016

Steel Compos. Struct.

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In cold-formed stainless steel lipped channel-sections, web openings are becoming increasingly popular. Such openings, however, result in the sections becoming more susceptible to web crippling, especially under concentrated loads applied near the web opening. This paper presents the results of a finite element parametric study into the effect of circular web openings on the web crippling strength of cold-formed stainless steel lipped channel-sections for the interiorone-flange (IOF) loading condition. This involves a bearing load applied to the top flange of a length of member, away from the end supports. The cases of web openings located centred beneath the bearing load (i.e. beneath the bearing plate delivering the load) and offset to the bearing plate, are considered. Three grades of stainless steel are considered: duplex EN1.4462, austenitic EN1.4404 and ferretic EN1.4003. In total, 2218 finite element models were analysed. From the results of the parametric study, strength reduction factors for load bearing capacity are determined, where these reduction factors are applied to the bearing capacity calculated for a web without openings, to take account the influence of the web openings. The strength reduction factors are first compared to equations recently proposed for cold-formed carbon steel lipped channel-sections. It is shown that for the case of the duplex grade, the strength reduction factor equations for coldformed carbon steel are conservative but only by 2%. However, for the cases of the austentic and ferritic grades, the cold-formed carbon steel equations are around 9% conservative. New strength reduction factor equations are proposed for all three stainless steel grades.

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“…Cold-formed stainless steel sections are increasingly been used in the construction industry, for both architectural and structural applications (Kiymaz and Seckin, 2014;Nethercot et al, 2011;Theofanous and Gardner, 2011), and the use of web openings in such sections is becoming increasingly popular (Lawson et al, 2015; see Figure 1). Such openings, however, result in the sections being more susceptible to web crippling as a form of localised buckling, especially under concentrated loads applied to the bearing flange in the vicinity of the openings.…”

Section: Introductionmentioning

confidence: 99%

Design of cold-formed stainless steel lipped channel sections with web openings subjected to web crippling under end-one-flange loading condition

Yousefi

Uzzaman²,

Liu

et al. 2016

Advances in Structural Engineering

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This article presents a numerical investigation on the web crippling strength of cold-formed stainless steel lipped channel sections with circular web openings under end-one-flange loading condition. In order to take into account the influence of the circular web openings, a parametric study involving 1992 finite element analyses was performed, covering duplex EN1.4462, austenitic EN1.4404 and ferritic EN1.4003 stainless steel grades; from the results of the parametric study, strength reduction factor equations are proposed. The web crippling strengths predicted by the reduction factor equations are first compared to the strengths calculated using the equations recently proposed for cold-formed carbon steel lipped channel sections. It is demonstrated that the strength reduction factor equations proposed for cold-formed carbon steel are unconservative for the stainless steel grades by up to 7%. Unified strength reduction factor equations are then proposed that can be applied to all three stainless steel grades

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Design of stainless steel sections with circular openings in shear

Cited by 27 publications

References 14 publications

Simplified design method and parametric study of composite cellular beam

Simplified design method and parametric study of composite cellular beam

Web crippling strength of cold-formed stainless steel lipped channel-sections with web openings subjected to interior-one-flange loading condition

Design of cold-formed stainless steel lipped channel sections with web openings subjected to web crippling under end-one-flange loading condition

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