Behavior of Stiffened Cold-Formed Steel Channel Sections Under Axial Compressive Force | ||||
| Journal of Advanced Engineering Trends | ||||
| Volume 44, Issue 1, January 2025, Page 307-314 PDF (915.55 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jaet.2025.317364.1349 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Ahmed Sedky Tohamy   1; Amr B. Saddek 2, 3; Asmaa Y. Hamed4
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| 1Construction and Building Dep., The Higher Institute of Engineering and Technology, Minia, Egypt | ||||
| 2Civil Engineering Dep., Faculty of Engineering, Al-Baha University, Al-Baha, Saudi Arabia | ||||
| 3Civil Engineering Dep., Faculty of Engineering, Beni-Suef University, Egypt | ||||
| 4Construction and Building Dep., The Higher Institute of Engineering and Technology, Luxor, Egypt | ||||
| Abstract | ||||
| Cold-formed steel members (CFS) are gaining popularity and increasing importance due to their construction from thin sheet steel, making them more susceptible to local buckling. This study conducts a theoretical analysis focused on the examination of stiffened cold-formed members under axial compressive force. The factors influencing the behavior of compressed stiffened cold-formed members are identified through collapse load curves. A case study is conducted using a channel section of the cold-formed section with and without web stiffener for varying lengths. The theoretical analysis is applied to a pin-ended strut consisting of the two flanges without modification for the effective width of the web. The results are then compared with the recommendations of BS5400 based on the Perry-Robertson formula for estimating the collapse stresses formula. The findings indicate that the mathematical modeling in this study can elucidate the interactive buckling behavior of stiffened cold-formed members and provide valuable insights into the effect of web stiffener of channel section when used as cold-formed members, with the web stiffener consistently altering the mode of failure from local failure or interactive failure to overall failure. | ||||
| Keywords | ||||
| Deflection; Local failure; Overall failure; Initial imperfection | ||||
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