Structural Behaviour of Cold-Formed Steel Built-Up Closed Cross-section Columns - Assessing the Influence of Parameters and Design Methods

Selvaraj, Sivaganesh; Madhavan, Mahendrakumar

doi:10.1016/j.engstruct.2023.116600

Cited by 8 publications

(2 citation statements)

References 77 publications

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“…On the other hand, the DSM in AS/NZS-4600 and AISI-S100 provided more consistent and accurate strength forecasts for G550 high-strength cold-formed Steel CFS-lipped channel columns failing due to interactive buckling [184]. In addition, the DSM is conservative up to a maximum of 258% and unconservative up to 60% [175] for built-up closed columns that are exposed to local, global, and local-global interactions.…”

Section: Ewm Vs Dsm Accuracy and Efficiency In Cfs Designmentioning

confidence: 92%

“…The DSM strength forecasts were more cautious for the short BUABC (see Figure 11), which might reach up to 13% on average, but they were less conservative for the stub built-up rectangle angle box columns (BUABC), which could reach up to 3% on average [114]. In addition, the DSM is conservative up to a maximum of 258% and unconservative up to 60% [175] for built-up closed columns that are exposed to local, global, and localglobal interactions.…”

Section: Evaluation Of Design Codes For Cfs Hollow Sections and Membersmentioning

confidence: 99%

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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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Section: Ewm Vs Dsm Accuracy and Efficiency In Cfs Designmentioning

confidence: 92%

Section: Evaluation Of Design Codes For Cfs Hollow Sections and Membersmentioning

confidence: 99%

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

Hussein,

Hussein

2024

Buildings

View full text Add to dashboard Cite

show abstract

Buckling behavior and failure mechanism of cold-formed steel built-up special shape cross-section columns

Liu,

Jiang,

et al. 2024

Engineering Failure Analysis

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Mechanics of cold-formed steel built-up box section columns in local buckling modes

Li,

Zhou

et al. 2025

Structures

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Structural Behaviour of Cold-Formed Steel Built-Up Closed Cross-section Columns - Assessing the Influence of Parameters and Design Methods

Cited by 8 publications

References 77 publications

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

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

Buckling behavior and failure mechanism of cold-formed steel built-up special shape cross-section columns

Mechanics of cold-formed steel built-up box section columns in local buckling modes

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