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Buckling study of sigma shaped cold formed steel built up sections

  • Unique Paper ID: 165381
  • Volume: 11
  • Issue: 1
  • PageNo: 1074-1078
  • Abstract:
  • Cold-formed steel (CFS) members have been extensively employed in light gauge steel constructions because of their inherent benefits. The increasing demand for CFS sections with higher capacities has necessitated the creation of "built-up" cross-sections by joining multiple single cross-sections. The sigma section, with its shear center's proximity to the web, is reported to possess various structural advantages over ordinary C and Z sections, including better specific strength, stronger torsional rigidity, and higher cross-sectional resistance. The optimization of these CFS members will result in more cost-effective and efficient building solutions by gaining increased load-bearing capacities. Hence, this study aims to determine the sigma sections are back to back in this thesis. The analysis has been done under two-point loading with simply supported condition with both laterally restrained and unrestrained conditions. Finite Element Analysis has been carried out using ABAQUS software. The section selected for analyzing are 150 x 80 x 15 mm and 200 x 100 x 15 mm, 225 x 120 x 15 mm with 1.6 mm thickness having span of 1.5 m. The investigation has thus presented the load carrying capacity and mode shape of sigma section with respect to varying heights and widths both laterally restrained and unrestrained conditions.
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Cite This Article

  • ISSN: 2349-6002
  • Volume: 11
  • Issue: 1
  • PageNo: 1074-1078

Buckling study of sigma shaped cold formed steel built up sections

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