Resistance of cold-formed built-up stainless steel columns – Part I: Experiment

Dobrić, Jelena; Marković, Zlatko; Buđevac, Dragan; Spremić, Milan; Fric, Nenad

doi:10.1016/j.jcsr.2018.02.026

Cited by 22 publications

(16 citation statements)

References 23 publications

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“…Experimental work was done in cold-formed stainless steel columns without any interval in between in [47]. Researches falling under the sections with intervals inbetween were presented in [25,26,48,49].…”

Section: Plain Channels Connected Back-to-backmentioning

confidence: 99%

Study on Strength and Behaviour of Cold-Formed Steel Built-up Columns

Sivasathya

Vijayanand

Prabha

et al. 2021

Recent Advancements in Geotechnical Engineering

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Abstract. Cold-formed Steel (CFS), a sort of steel weighing lesser, suits to be a wise choice of material in the construction of steel structures. It has more benefits that indeed make CFS get famous. Effortless installation can be accomplished with the CFS. It also renders a factor that only a few materials show, that is, longevity. Corrosion does not affect the CFS. Employing under moderate loads, CFS finds to be economically feasible when compared with hot-rolled steel. It can be used as compression members comprising single or built-up members. Since a single member cannot sustain the heavy load, the built-up members can be utilized. Open and closed sections are the two sorts of built-up profiles and these profiles show diverse buckling characteristics. This paper lays out a clear outline of the research works done on providing design recommendations to the codes by employing diverse built-up sections. It is reviewed by categorizing the investigated research works based on the kind of CFS sections chosen by each researcher. It was evident from the study that after validation, many researchers have done parametric study on CFS built-up columns to assess the accuracy of the design strength prediction by code specifications. Many codes failed to estimate the section’s ultimate capacity accurately as there are no specific design equations.

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Section: Plain Channels Connected Back-to-backmentioning

confidence: 99%

Study on Strength and Behaviour of Cold-Formed Steel Built-up Columns

Sivasathya

Vijayanand

Prabha

et al. 2021

Recent Advancements in Geotechnical Engineering

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“…Although not directly related to the topic of this paper, the following provides a broader view on what has been done in the past on the behaviour of both stainless and carbon steel channel sections subject to either compression, bending or a combination of both. Experiments and numerical analyses of built-up stainless steel channel section columns and beams are reported in [23], [24], [25] and in [26] respectively. With regard to single lipped and plain laser-welded channel members in bending, considerable results were obtained by Theofanous et al in [27].…”

Section: Literature Reviewmentioning

confidence: 99%

Behaviour of stainless steel plain channel section columns

Dobrić

Ivanović

Rossi

2020

Thin-Walled Structures

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In this paper, the structural stability of cold-formed stainless steel plain channel columns under axial compression is investigated. Reliable finite element models for channel section columns are first developed and validated against experiments conducted on stainless steel lipped channel specimens. This is followed by a parametric study in which columns made of austenitic, ferritic and duplex stainless steel are assessed. The considered cross-section classes and column lengths cover the entire range of global slenderness. The effects of material and geometrical nonlinearity are considered in the numerical analysis. The numerically generated data are then employed to evaluate the accuracy of the current European and Australian design codes EN 1993-1-4 and AS/NZS 4673 respectively, for predicting the flexural and flexural-torsional column buckling resistance. The results show a necessity to improve the current buckling curve used to predict the flexural buckling resistance of plain channel section columns, currently adopted in EN 1993-1-4, whose use may lead to unsafe predictions, especially for the austenitic grade.

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“…The investigation focuses on pin-ended built-up columns formed from two press-braked channel chords oriented back-to-back to form a non-slender I-section, addressing their flexural buckling capacity about the built-up axis. The paper presents FE (Finite Element) parametric studies based on a comprehensive experiment and FE simulation presented in detail in papers [14], [15], [16] and intended to extend the gathered experimental and numerical outcomes to a wider range of geometric variations affecting the compressive capacity of built-up columns including overall or chord failure modes. The investigation is concentrated on the most commonly used austenitic stainless steel grade EN 1.4301 (X5CrNi18-10).…”

Section: Introductionmentioning

confidence: 99%

Stability design criteria for closely spaced built-up stainless steel columns

Dobrić¹,

Gluhović²,

Marković³

et al. 2021

Građ materijali i konstrukcije

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This paper aims to develop design recommendations for closely spaced built-up stainless steel columns, based on findings gained in performed research at the University of Belgrade. The research focuses on pin-ended built-up columns formed from two press-braked channel chords oriented back-to-back and addresses their flexural buckling capacity about the minor axis. The impact of overall and local chord slenderness, interconnection stiffness, geometric imperfections and material nonlinearity is evaluated. In order to fully exploit their structural performance, two separate approaches for the design of built-up columns with welded or bolted interconnections are defined that include different formulas for shear stiffness.

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Resistance of cold-formed built-up stainless steel columns – Part I: Experiment

Cited by 22 publications

References 23 publications

Study on Strength and Behaviour of Cold-Formed Steel Built-up Columns

Study on Strength and Behaviour of Cold-Formed Steel Built-up Columns

Behaviour of stainless steel plain channel section columns

Stability design criteria for closely spaced built-up stainless steel columns

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