Numerical Investigation and Design of Cold-Formed Steel Channel and Z-Sections Undergoing Local and Global Interactive Buckling

IF 1.1 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

International Journal of Steel Structures Pub Date : 2024-10-02 DOI:10.1007/s13296-024-00899-4

S. E. Atya, A. H. A. Abdelrahman, F. A. Salem, N. S. Mahmoud, Mohamed Ghannam

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Abstract

This research investigates the compressive and flexural strengths of cold-formed steel (CFS) members with channel and Z-profiles. The study includes a comprehensive analysis of 500 CFS members. Finite-element (FE) models in ABAQUS, validated by experimental results, assess the influence of various parameters on the capacities of these CFS members. The parameters analyzed include the member length-to-depth ratio, section depth-to-width ratio, plate slenderness ratio, lip-to-flange width ratio, and material yield stress. Results from FE models were compared with those from the Effective Width Method (EWM) and the Direct Strength Method (DSM). A graphical user interface (GUI) was developed to streamline EWM and DSM calculations, enhancing efficiency and accuracy. This study provides valuable insights into the performance of innovative CFS channels and Z-profiles, facilitating a deeper understanding of their structural capacities and offering a foundation for potential applications in modern engineering design and construction practices.

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发生局部和全局交互屈曲的冷弯型钢槽钢和 Z 型钢的数值研究与设计

本研究调查了槽钢和 Z 型钢冷弯型钢 (CFS) 构件的抗压和抗弯强度。研究包括对 500 个 CFS 构件进行全面分析。ABAQUS 中的有限元 (FE) 模型通过实验结果验证，评估了各种参数对这些 CFS 构件承载力的影响。分析的参数包括构件长深比、截面深宽比、板长宽比、唇缘宽窄比和材料屈服应力。将有限元模型得出的结果与有效宽度法（EWM）和直接强度法（DSM）得出的结果进行了比较。开发的图形用户界面 (GUI) 简化了 EWM 和 DSM 计算，提高了效率和准确性。这项研究为创新 CFS 渠道和 Z 型材的性能提供了宝贵的见解，有助于加深对其结构能力的理解，并为其在现代工程设计和施工实践中的潜在应用奠定了基础。

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来源期刊

International Journal of Steel Structures 工程技术-工程：土木

CiteScore

2.70

自引率

13.30%

发文量

122

审稿时长

12 months

期刊介绍： The International Journal of Steel Structures provides an international forum for a broad classification of technical papers in steel structural research and its applications. The journal aims to reach not only researchers, but also practicing engineers. Coverage encompasses such topics as stability, fatigue, non-linear behavior, dynamics, reliability, fire, design codes, computer-aided analysis and design, optimization, expert systems, connections, fabrications, maintenance, bridges, off-shore structures, jetties, stadiums, transmission towers, marine vessels, storage tanks, pressure vessels, aerospace, and pipelines and more.