BibTeX:

@article{IJIRSTV3I4163,
     title={Cold Formed Steel Stiffened Web Sections Behaviour},
     author={Ashish Kumar, Keshav Priyadarshi, Sanjay Kumar, Rajan Kumar and Ashutosh Kumar},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={4},
     pages={428--432},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I4163.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

There are two types of structural steel members which are used, namely hot rolled steel and cold formed steel. The use of thin-walled, cold-formed high strength steel products in the building industry has significantly increased in recent years. These products are being widely used in various applications such as purlins, girts, portal frames and steel framed housing The performance of the Cold Formed Steel (CFS) sections is affected due to buckling mode involving flexural-torsional buckling and local buckling, distortional buckling, overall buckling and their interactions, which are invariably important facets of Cold Formed Steel sections. It is therefore important that these buckling modes are either delayed or eliminated to increase the ultimate moment capacity of the CFS sections. To overcome this limitation, the webs are stiffened by means proper bending on it. Stiffeners in the web of the C-section increase the local buckling stress, distortional buckling stress of the section. Due to the stiffeners, more distortional buckling modes occur in the section. In the present numerical investigation, web of the Cold Formed Lipped C section are stiffened by means of proper bending, these web stiffened lipped channel section named as sigma section used as a purlin and their effectives is analyzed using a commercially available Finite Element Software ANSYS 12.0. Specimens are modelled analyzed in simply supported condition for varing h/t ratio and d/t ratio and Von-Mises stress and strain variations, displacement were found. This is followed by determination of the load carrying capacity using ANSYS and compared with experimental results.

Lipped C Section, Lipped C Sigma Section, Flexural Behaviour, Numerical Analysis, Experimental Validiction