Aluminium alloy channel columns: Testing, numerical modelling and design

Georgantzia, Evangelia; Gkantou, Michaela; Kamaris, George S.

doi:10.1016/j.tws.2022.110242

Cited by 11 publications

(2 citation statements)

References 35 publications

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“…DSM outperforms EC9 in terms of prediction accuracy. Additionally, DSM and EC9 estimated the predicted-to-ultimate strength ratios as 0.93 and 0.96 for pin-ended and fixed-ended stub columns, respectively [154]. Moreover, the seismic response adjustment factors recommended by FEMA450, AISI, and Iranian codes are considered to be too cautious for strap-braced frames, according to the findings of a nonlinear static analysis [150].…”

Section: Comparative Analysis Of Design Codes For Cold-formed Steel S...mentioning

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: Comparative Analysis Of Design Codes For Cold-formed Steel S...mentioning

confidence: 99%

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

Hussein,

Hussein

2024

Buildings

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“…Aluminum and its alloys are widely used in many fields, such as automobiles (Sun et al , 2013), buildings (Georantzia et al , 2023), ships (Federico and Mazzolani, 2012) and aerospace (Zhang et al , 2022), because of the high conductivity, good machinability and light weight (Verma and Kumar, 2021). In China, vast and complex networks with ultra-high voltage transmission lines have been built with the rapid development of the power grid.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric corrosion acceleration effect on commercial aluminum alloys in current-carrying condition

Gao,

Li,

et al. 2024

ACMM

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Purpose The purpose of this paper is to study the effect of current-carrying condition on the electrochemical process and atmospheric corrosion behavior of the commercial aluminum alloys. Design/methodology/approach Potentiodynamic polarization tests were performed to study the electrochemical process of the aluminum alloys. Salt spray tests and weight loss tests were carried out to study the atmospheric corrosion behavior. The corrosion morphology of the alloys was observed, and the products were analyzed. Findings The corrosion process of four aluminum alloys was accelerated in the current-carrying condition. Moreover, the acceleration effect on A2024 and A7075 was much stronger than that on A1050 and A5052. The main factors would be the differences in microstructure and corrosion resistance between these alloys. As the carried current increased, the corrosion rate and corrosion current density of the aluminum alloys gradually increased, with the protection of the corrosion product film decreasing linearly. Originality/value This is a recent study on the corrosion behavior of conductors under current-carrying condition, which truly understands the corrosion status of power grid materials. Relevant results provide support for the corrosion protection and safe service of aluminum alloy in power systems.

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Compression Performance of Asymmetric Cross-Section Columns Intended for Use in Modular Structures

2023

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Aluminium alloy channel columns: Testing, numerical modelling and design

Cited by 11 publications

References 35 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

Atmospheric corrosion acceleration effect on commercial aluminum alloys in current-carrying condition

Compression Performance of Asymmetric Cross-Section Columns Intended for Use in Modular Structures

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