Mechanical Properties of New Cold-Formed Flange-Closed Welding Section Members

Abstract:

The hollow flange beam (HFB) is a unique cold-formed steel section developed in Australia for use as a flexural member. This paper presents two kinds of new cold-formed flange-closed welding sections named HF1 and HF2 according to different section component and parameters of HFB. Nonlinear finite element method has been adopted to investigate the mechanical properties such as buckling mode, deformation process, rigidity, ductility and correlation curve of two kinds of new section members which being subjected to axial compression, flexure, combined compression and bending. Some conclusions can be drawn from above work that the new sections have some superiority properties, such as higher load carrying capacity and section modulus, sufficient section stiffener and the sub element local buckling hard to happen and so on. Being subjected to flexure and also being subjected to compression, combined compression and bending are suitable for the mechanical properties. The new cold-formed flange-closed welding section members can be applied to the experiment investigation deeply so as to be used in the practical engineering.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 2942-2950
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.2942
• Online since: May 2012
• Authors: Sheng Wu
• Keywords: Cold-Formed Steel Members, Finite Element Analysis (FEA), Hollow Flange Beam, Mechanical Property

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