Flexural Behaviour of Cold-Formed Ferritic Stainless Steel Built-Up Joists

A number of reasons have led to the increased use of stainless steel in construction, because of its corrosion resistance, pleasing aesthetic appearance, and favourable material properties. In addition to its high nickel content of approximately 8–10%, these products have a higher initial cost but lesser maintenance cost. There are different grades of stainless steel depending up on the composition of chromium and nickel. These grades offer the advantages of stainless steel, such as functional qualities and design. It should therefore be noted that ferritic stainless steel may be an alternative material for structural purposes due to its good formability and ductility. The cold-formed ferritic stainless open web steel joist is investigated experimentally as well as analytically to examine their flexural behaviour. The section is fabricated using ferritic stainless steel grade-EN-1.4016/ASIS-430 in accordance with Eurocode standard codal provisions. Using ABAQUS, a final element software, was able to create and shortlist the stronger built-up sections under three-point loading. As part of validation process of finite element analysis using software, the failure pattern of local buckling, load carrying capacity, and deflection of two built-up sections are compared with experimental results.