Behaviour of cold-formed steel perforated sections in compression: Part 2—numerical investigations and design considerations

Crisan, Andrei; Ungureanu, Viorel; Dubină, Dan

doi:10.1016/j.tws.2012.07.013

Cited by 54 publications

(22 citation statements)

References 25 publications

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“…125 × 3.2 and 0.42 for the net section RSN 125 × 3.2. In a direct comparison with the results obtained via ECBL approach [16,17], it can be observed they are in a good agreement with the ones obtained in [16,17], i.e. of 0.44 for the net section, but for a combination of imperfec-…”

Section: Evaluation Of ψ Erosion Factorsupporting

confidence: 79%

“…The analysis started on pallet rack uprights in compression, based on an intensive experimental study carried out at the Politehnica University of Timisoara [16,17].…”

Section: Test Descriptionmentioning

confidence: 99%

“…1. Additional details related to crosssection, perforations, lengths, material, experimental tests and numerical simulations can be found in [16,17]. The members will be denoted in the following as RSB 125 × t in the case of brut cross-section and as RSN 125 × t for net cross-section, t being the thickness.…”

Section: Test Descriptionmentioning

confidence: 99%

“…The length range was established in order to include the interactive buckling range, computed based on ECBL approach [14], considering the interaction of distortional and flexural buckling modes. The procedure was detailed in [17]. For each length five thicknesses t have been considered: 1, 1.4, 2.0, 2.6 and 3.2 mm.…”

Section: Test Descriptionmentioning

confidence: 99%

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Koiter Asymptotic Analysis of Thin-walled Cold-formed Steel Uprights Pallet Racks

et al. 2016

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Section: Evaluation Of ψ Erosion Factorsupporting

confidence: 79%

“…The analysis started on pallet rack uprights in compression, based on an intensive experimental study carried out at the Politehnica University of Timisoara [16,17].…”

Section: Test Descriptionmentioning

confidence: 99%

Section: Test Descriptionmentioning

confidence: 99%

Section: Test Descriptionmentioning

confidence: 99%

See 2 more Smart Citations

Koiter Asymptotic Analysis of Thin-walled Cold-formed Steel Uprights Pallet Racks

et al. 2016

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“…sectional, global and loading eccentricities, together with their combination were presented [16] and will not be considered in present study.…”

Section: Effects Of the Cold Rolling Processmentioning

confidence: 99%

Cold Rolling Effects on Material Properties in Pallet Rack Uprights

Crisan¹,

Dogariu²

2017

TOCIEJ

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Pallet rack structures are usually made up of thin walled cold formed steel sections. The cold rolling process changes the material properties, increasing the yield strength and tensile strength across the section. According to EN1993-1-3, an equivalent yielding strength is allowed to be considered in design to account for the changes in material properties. It has to be mentioned that this approach does not take into account the residual stresses that arise following the forming process. The current paper presents the experimental evidence of residual stresses as result cold rolling process for two pallet rack upright sections. Based on experimental findings, a series of numerical models were created in order investigate the influence of residual stresses onto the load bearing capacity of pallet rack uprights. The experimental program was developed within the CEMSIG Research Centre (http://cemsig.ct.upt.ro) of "Politehnica" University of Timisoara. The increase of yield strength and tensile strength across the crosssection was also experimentally determined.

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Mode Interaction in Cold‐Formed Steel Members: State‐of‐Art Report

et al. 2021

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This work provides a state‐of‐art report on the most recent findings concerning the behaviour, strength and Direct Strength Method (DSM) design of cold‐formed steel (CFS) columns and beams affected by mode coupling phenomena not adequately covered by the current specifications for CFS members, namely local‐distortional (L‐D), local‐distortional‐global (L‐D‐G), distortional‐global (D‐G) and global‐global (flexural‐torsional/flexural ‐ FT‐F) interaction. The paper addresses experimental tests, numerical simulations and DSM‐based design approaches, intended to (i) acquire in‐depth knowledge on the non‐linear behaviour (elastic and elastic‐plastic), load‐carrying capacity and failure mode nature of the members under consideration, and (ii) make use of the above knowledge to develop, propose and assess the merit of efficient DSM‐based design approaches to estimate their failure loads or moments. Initially, illustrative column results are briefly presented to help grasp some fundamental concepts, namely the characterisation of the (i) above mode coupling phenomena, (ii) different sources of mode interaction that may lead to failure load/moment erosion and (iii) the most detrimental initial geometrical imperfections ‐ also presented are the currently codified DSM design curves, as well as two recently developed strength curves for column flexural‐torsional and beam distortional failures. Then, the paper addresses separately each mode coupling phenomenon dealt with, for columns, and only L‐D and D‐G interaction for beams. For columns undergoing L‐D and L‐D‐G interaction, beams experiencing L‐D interaction and angle columns susceptible to FT‐F interaction, the work reported includes experimental studies, numerical simulations and DSM‐based design considerations and/or guidelines. For the remaining coupling phenomena only numerical results are reported, but they unveil interesting (and unexpected) behavioural features that will help plan future test campaigns and achieve efficient design approaches. Finally, the paper closes with a few concluding remarks and a perspective about future developments in this field.

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Behaviour of cold-formed steel perforated sections in compression: Part 2—numerical investigations and design considerations

Cited by 54 publications

References 25 publications

Koiter Asymptotic Analysis of Thin-walled Cold-formed Steel Uprights Pallet Racks

Koiter Asymptotic Analysis of Thin-walled Cold-formed Steel Uprights Pallet Racks

Cold Rolling Effects on Material Properties in Pallet Rack Uprights

Mode Interaction in Cold‐Formed Steel Members: State‐of‐Art Report

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