Review of Cold-Formed Steel Columns

Sivasathya, K.; Vijayanand, S.

doi:10.1007/978-981-15-9809-8_24

Cited by 3 publications

(2 citation statements)

References 88 publications

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“…The ultimate angle of twist of beams with opening increased compared to control beam. Previously, numerous research studies have been conducted to enhance the use of cold-formed steel members as primary structural members, for instance, roof truss, beam and column (Roy et al , 2018; Selvaraj and Madhavan, 2021; Sivasathya et al , 2021).…”

Section: Introductionmentioning

confidence: 99%

The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

Jin

De’nan

Choong

et al. 2023

WJE

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Purpose Cold-formed steel has been used extensively as secondary elements such as purlins and girts in building frames. Purlin is critical to the structure of the roof because it supports the weight of the roof deck and aids to make the entire roof structure more rigid. Furthermore, cold-formed steel purlin is a replacement for wood purlin because steel purlins are light weight and more economical. Hence, the purpose of this study to investigate the effect of opening due to torsion behaviour. Design/methodology/approach This analysis used cold-formed steel hat purlin with and without openings (WOs) under different opening shape, location and spacing by using finite element LUSAS software. Findings The finite element results showed that purlin with openings had higher angle of rotation than section WO, with a percentage difference of not more than 6%. When the opening was located at mid-span, the angle of rotation reduced. Angle of rotation increased when the opening spacing increased. Number of openings also affected the torsional behaviour of the purlin. Five opening shapes, which were circle, diamond, C-hexagon, square and elongated circle, were studied. Among all the shapes, purlin with diamond opening was more resistance to torsion. Originality/value The use of cold-formed steel section with web openings (rectangular or circular) is a practical solution when it is required to pass service ducts through the structural member. However, the presence of opening gives minor effect on the structural behaviour of cold-formed steel hat purlin.

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Section: Introductionmentioning

confidence: 99%

The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

Jin

De’nan

Choong

et al. 2023

WJE

View full text Add to dashboard Cite

show abstract

“…CFS single section's capacity to take large compressive loads is minimum. Connection of two or more single sections like the hat, C, Z, etc., give rise to built-up sections [3][4][5] that show greater load carrying capacity than individuals [6][7][8]. Lacings and battens are used to assemble them [9].…”

Section: Introductionmentioning

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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A Critical Review of Cold-Formed Steel Built-Up Composite Columns with Geopolymer Concrete Infill

Sara Simon,

Kafle,

Al-Ameri

2024

J. Compos. Sci.

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Concrete-filled built-up cold-formed steel (CFS) columns offer enhanced load-carrying capacity, improved strength-to-weight ratios, and delayed buckling through providing internal resistance and stiffness due to the concrete infill. Integrating sustainable alternatives like self-compacting geopolymer concrete (SCGC) with low carbon emissions is increasingly favoured for addressing environmental concerns in construction. This review aims to explore the current knowledge regarding CFS built-up composite columns and the performance of SCGC within them. While research on geopolymer concrete-filled steel tubes (GPCFSTs) under various loads has demonstrated high strength and ductility, investigations into built-up sections remain limited. The literature suggests that geopolymer concrete’s superior compressive strength, fire resistance, and minimal shrinkage render it highly compatible with steel tubular columns, providing robust load-bearing capacity and gradual post-ultimate strength, attributed to the confinement effect of the outer steel tubes, thereby preventing brittle failure. Additionally, in built-up sections, connector penetration depth and spacing, particularly at the ends, enhances structural performance through composite action in CFS structures. Consequently, understanding the importance of using a sustainable and superior infill like SCGC, the cross-sectional efficiency of CFS sections, and optimal shear connections in built-up CFS columns is crucial. Moreover, there is a potential for developing environmentally sustainable built-up CFS composite columns using SCGC cured at ambient temperatures as infill.

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Review of Cold-Formed Steel Columns

Cited by 3 publications

References 88 publications

The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

The analysis of web opening configuration on cold-formed steel hat purlin under torsion behaviour

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

A Critical Review of Cold-Formed Steel Built-Up Composite Columns with Geopolymer Concrete Infill

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