Buckling Analysis of Cold-Form Steel Built-Up Column with Two Sections

Cold-formed steel has a high strength ratio, high corrosion resistance, and ease of fabrication. So, their range of applications has rapidly expanded as a primary structure for flexural and compression members due to their varieties of advantages. The increased load-carrying capacity and span length can be achieved by the build-up of the section connecting two or more individual sections by self-drilling screws or spot welds. This project deals with the buckling analysis of cold-form built-up sections using ANSYS software. The sections were made by connecting two sections using self-drilling screws. The sections used for the study were channel sections without lips. This project mainly aims to study the effect of buckling loads by changing the screw spacing. According to the findings, buckling load increases as screw spacing decreased. In contrast to open sections, closed sections display variable findings.