Experiments on Cold-Formed Steel Lipped Channel Beams with Complex Edge Stiffeners and Web Holes

Abstract:

This paper presents an experimental investigation and a numerical analysis on the bending strength and behavior of cold-formed steel C-section and ∑-section beams with complex edge stiffeners and web holes. Local buckling, distortional buckling and interaction between local and distortional buckling were observed in the tests. The experimental results show that the stiffened web has great influence on member's bending strength. Compared with C-section specimens, the stiffness of the web stiffeners of ∑-section specimens reduced the influence of the holes. The finite element analysis results show good agreement with the experimental results in terms of bending strength and buckling mode.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 461-464
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.461
• Online since: March 2013
• Authors: Chun Gang Wang, Run Jia Liang, Lian Guang Jia, Hong Liu
• Keywords: Beam, Cold-Formed Steel, Distortional Buckling, Hole, Local Buckling

References

[1] C.D. Moen, Anna Schudlich and Aaron von der Heyden: submitted to Journal of Structural Engineering (2009).

[2] C.D. Moen, B.W. Schafer: Thin-Walled Structures. Vol. 46 (2008), p.1164.

[3] C.D. Moen, B.W. Schafer: Thin-Walled Structures. Vol. 47 (2009), p.1597.

[4] Chungang Wang. Stability behavior analysis and experimental study on singly-symmetric cold-formed thin-walled steel members under compression loading. (Harbin Institute of Technology, China 2007). In Chinese.

[5] Haiming Wang. Study on the Stability Behavior of Cold-Formed Steel Flexural Members (Harbin Institute of Technology, China 2009). In Chinese.