Analytical study of flat and curved trapezoidal cold formed steel sheets by means of the yield line theory. Part 2: Curved sheets with transverse corrugations

Casariego, Pedro; Casafont, Miquel; Ballester, Miquel Ferrer; Marimon, Frederic

doi:10.1016/j.tws.2018.12.018

Cited by 10 publications

(9 citation statements)

References 9 publications

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“…The post-collapse patterns were analysed by the authors in [2], [3] and [4] by means of yield line theory. The results were satisfactory and in accordance with those shown above.…”

Section: Design and Researchmentioning

confidence: 99%

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Compression behaviour of trapezoidal steel sheets with transverse corrugations

et al. 2019

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Nominated for the Bernt Johansson Outstanding Paper Awards at Nordic Steel 2019 Over the past few decades, the cold‐formed steel industry has developed a manufacturing technique for producing self‐supporting arches from trapezoidal steel sheets. The press‐forming procedure is based on introducing transverse corrugations into the main direction of the flat profile in order to bend it. The main problem is that these indentations, which are essential to curve the profile, change the effective properties of the original steel sheet. Currently, there is no design code or standardized test procedure that can be used to obtain the effective properties of the corrugated profile. This research project analyses the behaviour of the corrugated profile when it is subjected to pure compression and compares it with the behaviour of the flat profile.

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“…The post-collapse patterns were analysed by the authors in [2], [3] and [4] by means of yield line theory. The results were satisfactory and in accordance with those shown above.…”

Section: Design and Researchmentioning

confidence: 99%

“…A model of the original flat profile, hence without corrugation, was also subjected to pure compression in order to analyse the behavioural differences between both models. Details of these two steps can be found in [4], [5] and [6].…”

Section: Profile Analysed Introductionmentioning

confidence: 99%

Compression behaviour of trapezoidal steel sheets with transverse corrugations

et al. 2019

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“…Doubly corrugated steel arches can be produced from trapezoidal cold-formed steel sheets through the use of press-formed transverse corrugations (as shown in Figure 1). However, studies have revealed that these corrugations can have a significant negative impact on the stiffness and load-carrying capacity of the original trapezoidal sheet (see [1,2] among others). Despite this, they are preferred to cold-formed arches obtained by continuous forming because they allow for a wider range of curvatures to be produced.…”

Section: Introductionmentioning

confidence: 99%

“…In previous studies [2,4], the authors presented a design procedure for doubly corrugated arches, where the effective properties of the cross-section are determined from reduced experimental tests and shell finite element simulations on trapezoidal sheets with a single (or few) transverse corrugation. The effective properties are then introduced in a simplified beam finite element model of the arch, from which the ultimate load carrying capacity is determined.…”

Section: Introductionmentioning

confidence: 99%

Simplified nonlinear analysis of doubly corrugated cold‐formed steel arches

Casafont,

Bové,

Marimon

et al. 2023

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Doubly corrugated steel arches are made by pressing transverse corrugations on trapezoidal cold‐formed steel sheets. Several studies show that these transverse corrugations may have a significant detrimental effect on the stiffness and load‐bearing capacity of the original trapezoidal profile. This paper presents an experimental campaign aimed at investigating the effects of transverse corrugations on the behaviour of arches. The campaign includes reduced tests on flat sheets and sheets with a single corrugation, as well as full tests on arches with spans ranging from 10 to 20 m. Subsequently, a simplified design procedure based on nonlinear 2D beam finite element models is proposed. The models account for the transverse corrugation effects by using intermediate rotational springs and equivalent beam section areas, which are calibrated from the results of the reduced experiments. A brief sensitivity study of the finite element results with respect to different modelling factors is conducted, and the different effects of the corrugation assessed. Finally, the simplified finite element models are validated by comparing the experimental and numerical force‐displacement curves, which show reasonably good agreement. However, further research is needed to refine and extend the proposed procedure.

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“…4). Details on this first step can be found in (2). In the second step, the obtained geometry was inserted in a model, also performed with ANSYS 14 (Fig.…”

Section: Introductionmentioning

confidence: 99%

Compression behaviour of cold formed steel trapezoidal sheeting with transverse corrugations

et al. 2019

View full text Add to dashboard Cite

Over the past decades, the cold-formed steel industry has developed a manufacturing technique to produce self-supporting arches from trapezoidal steel sheets. The press-forming procedure is based on introducing transverse corrugations to the main direction of the flat profile in order to bend it. The main problem is that these indentations, which are essential to curve the profile, change the effective properties of the original steel sheet. Nowadays, there is neither design code, nor a standardized test procedure from which to obtain the effective properties of the corrugated profile. The present investigation analyses the behaviour of the corrugated profile when it is submitted to pure compression and compares it to the behaviour of the flat profile.

show abstract

Analytical study of flat and curved trapezoidal cold formed steel sheets by means of the yield line theory. Part 2: Curved sheets with transverse corrugations

Cited by 10 publications

References 9 publications

Compression behaviour of trapezoidal steel sheets with transverse corrugations

Compression behaviour of trapezoidal steel sheets with transverse corrugations

Simplified nonlinear analysis of doubly corrugated cold‐formed steel arches

Compression behaviour of cold formed steel trapezoidal sheeting with transverse corrugations

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