Equivalent Temperature Prediction for Concrete-Filled  Cold-Formed Steel  (Cf-Cfs)  Built-Up  Column Sections (Part a)

Rahnavard, Rohola; Craveiro, Hélder D.; Simões, Rui; Santiago, Aldina

doi:10.2139/ssrn.4021883

Cited by 1 publication

(1 citation statement)

References 15 publications

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“…When discussing whole CF-CFS composite columns, the experimental and numerical findings reveal that both AISC specifications and EN 1994-1-1 provide a very conservative forecast. However, concerning partial concrete-filled CFS (CF-CFS) columns, both codes provide an unconservative prediction [162]. In predicting the compressive strength for (CF-CFS) built-up member stub columns using ACI318, caution is often warranted, and the reliability of such predictions is questionable [115].…”

Section: Design Codes Inaccurate For Concrete-filled Steel Columnsmentioning

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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Section: Design Codes Inaccurate For Concrete-filled Steel Columnsmentioning

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

Equivalent Temperature Prediction for Concrete-Filled Cold-Formed Steel (Cf-Cfs) Built-Up Column Sections (Part a)

Cited by 1 publication

References 15 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

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