Cruciform steel column: FEM simulation and experimental approach to evaluate the strength and buckling behaviour

Abstract

I-section is the most common structural member that is frequently utilized as a column element because of its serviceability and efficient load transfer. Due to its larger axial capacity and symmetrical geometry, the cruciform section is a potential substitute to the conventional column section. The two primary factors that determine a column’s capacity are the slenderness ratio and the second moment of inertia. The axial capacity of a column is effectively increased by symmetrical cruciform column sections, which have the identical second moment of inertia on both axes. In this work, the analytical examination utilising the FEM is contrasted with the experimental approach to carry out an extensive assessment for comparing Cruciform column sections with conventional steel sections. Analytical and experimental findings are compared with theoretical results to provide an adequate evaluation. The general performance and buckling properties of the column are evaluated in this study. Two unique cruciform column sections are reviewed and compared with the standard column section. In terms of performance, cruciform column sections outperform regular column sections. It is made evident that the flanged cruciform column section performs well when used in the place of heavier steel column sections, which lowers the overall sectional weight as well as the cost.