Flexural Behaviour of Concrete Encased Cold Formed Steel Channel Section

The use of Cold-Formed Steel (CFS) structures has become increasingly popular in different fields of building technology. The reasons behind the growing popularity of these products include their ease of fabrication, high strength/weight ratio and suitability for a wide range of applications. These advantages can result in more cost-effective designs, as compared with hot-rolled steel, especially in short-span applications. In this project work attempt has been made to use Cold formed steel section as replacement to conventional steel reinforcement bar. Reinforced concrete beam and concrete beam encased with lipped CFS channel sections with open and closed configuration are incorporated for study. Experimental testing is done to study the flexural behaviour of specimen by using two-point loading. Results showed increased load carrying capacity for CFS encased beam. Concrete encasing prevented local buckling of CFS sections improving flexural bending capacity of section.