Study on Behavior of Corrugated Webs in Cold Formed Steel Sections with Varying Thickness

A cold-formed steel section is more sensitive to local buckling than typical hot rolled sections. It is characterized bylight weight, high strength, economical, wide variety, smooth surface and accurate size. The web panels are used as stiffened plates that can receive both high shear and high moment in different sections or in the same section depending on the beam statical system. One of the methods of reducing the web thickness is the use of corrugated sheets as webs. However, they are suggestible to various modes of buckling including local and distortional buckling. The main aim of this thesis is to find the maximum load carrying capacity of the specimen and possible modes of failure under two point loading at the corrugated web in cold formed sections with varying thickness. Steel Isection with the corrugated web having two flanges are welded with theweb. The length of the specimen is kept constant for 1200mm and the thickness is varied from 0.7mm, 0.9mm, and 1.2mm.The results for a simply supported beam is subjected to a two point loading are examined. Finally, numerical analysis using ANSYS 15.1 results are analysed and justified with experimental results foran explanation.