Numerical Analysis on Distortional Failure of Cold-Formed Steel Hat-Section Beams Under Non-uniform Bending

Dib, Claudio O.; Ramos, Guilherme Henrique dos Santos; Vieira, Gregorio Sandro

doi:10.1007/s13296-023-00756-w

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Nguyen et al [9] and Piotrowski et al [10] numerically investigated the elastic critical lateral-torsional buckling of steel beams under bending loads using the finite element software ABAQUS. Dib, Ramos, and Vieira [11] analyzed the structural behavior of cold-formed steel hat-section beams under non-uniform bending, using GBTUL and ABAQUS. De'nan et al [12,13] numerically evaluated the buckling behavior of hat-shaped sections with holes along the section.…”

Section: Introductionmentioning

confidence: 99%

Global Buckling Resistance of Cold-Formed Steel Beams with Omega-Shaped Sections

Peres,

Carvalho,

Emerick

et al. 2024

Applied Sciences

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The absence of analytical expressions in current codes for evaluating the critical moment for lateral–torsional buckling of cold-formed beams with omega-shaped sections presents a fundamental challenge when assessing their resistance to global buckling. In response to this challenge, a comparative study was conducted to explore various approaches for calculating the critical moment. This involved both analytical and numerical analyses, using different methods available in codes and computational tools. The analytical analysis followed the Effective Width Method, employing the expression proposed in ENV 1993-1-1:1992, which is commonly used for evaluating the critical lateral–torsional moment of hot-rolled profiles. Numerical analyses were then performed using the ABAQUS v6.13, GBTUL v2.0, and CUFSM v5.05 software packages. The ABAQUS model, validated with results obtained from an experimental campaign, serves as the reference model. Upon assessing the bending moment resistances according to European, Brazilian, and American standards, consistency was found among these standards. However, it became evident that using the analytical expression proposed for hot-rolled profiles is inadequate for evaluating the critical lateral–torsional moment of CFS omega-shaped profiles. Conversely, the agreement between the ABAQUS, GBTUL, and CUFSM results suggests their utility as reliable tools for estimating the elastic critical lateral–torsional buckling moment.

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Section: Introductionmentioning

confidence: 99%

Global Buckling Resistance of Cold-Formed Steel Beams with Omega-Shaped Sections

Peres,

Carvalho,

Emerick

et al. 2024

Applied Sciences

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“…The utilization of cold-formed steel (CFS) sections has witnessed a notable surge in various construction applications, owing to their inherent advantages such as their lightweight properties, recyclability, and ease of installation processes [1][2][3][4][5][6]. Despite their widespread adoption, ensuring the structural integrity and performance of CFS elements demands a comprehensive understanding of the factors influencing their strength.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

Hussein,

Hussein

2024

Buildings

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The utilization of cold-formed steel (CFS) sections in construction has become widespread due to their favorable attributes, including their lightweight properties, high strength, recyclability, and ease of assembly. To ensure their continued safe and efficient utilization, this review provides a comprehensive investigation into the factors influencing the strength of CFS members. This analysis encompasses design codes, prediction methodologies, material properties, and various structural configurations. This review uncovers discrepancies among existing design codes, particularly noting conservative predictions in AISI and AS/NZS standards for composite and built-up sections. Additionally, the effectiveness of prediction methods such as the direct strength method and effective width method varies based on specific structural configurations and loading conditions. Furthermore, this review delves into recent advancements aimed at enhancing fire resistance, connection design, and the composite behavior of CFS structures. The influence of factors such as eccentricity, sheathing materials, and bolt spacing on structural performance is also examined. This study underscores the crucial role of accurate prediction methods and robust design standards in ensuring the structural integrity and safety of CFS constructions. Through a comparative analysis, it is revealed that AISI and AS/NZS standards exhibit conservatism in predicting nominal buckling loads compared to experimental data. Conversely, a non-linear finite element analysis demonstrates a strong correlation with laboratory tests, offering a more accurate prediction of nominal buckling capacity. Overall, this review offers comprehensive insights aimed at optimizing CFS structural design practices. By identifying key areas for future research and development, this work contributes to the ongoing advancement of safe and efficient CFS construction applications.

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Experimental study on ultimate bearing capacity of short thin-walled steel tubes reinforced with high-ductility concrete

Chen,

Zhang,

Hao

et al. 2024

Structures

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Numerical Analysis on Distortional Failure of Cold-Formed Steel Hat-Section Beams Under Non-uniform Bending

Cited by 3 publications

References 8 publications

Global Buckling Resistance of Cold-Formed Steel Beams with Omega-Shaped Sections

Global Buckling Resistance of Cold-Formed Steel Beams with Omega-Shaped Sections

Investigating the Factors Influencing the Strength of Cold-Formed Steel (CFS) Sections

Experimental study on ultimate bearing capacity of short thin-walled steel tubes reinforced with high-ductility concrete

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