BUCKLING ANALYSIS of CRUCIFORM COLUMN USING UNIVERSAL BEAM SECTION
This paper describes the buckling behaviour of cruciform column section using universal beam sections. The initial imperfections and material properties of the cruciform column section have been measured experimentally and reported in this paper. A finite element model was developed to carry out the buckling analysis. The finite element analysis was performed on cruciform column sections compressed between pinned ends for different column lengths, and column curves ware obtained. The linear finite element model was verified against recent experimental results. An extensive parametric study was carried out using the finite element model to study the effects of cross section geometries on the strength and behaviour of cruciform column sections. The column strengths predicted by the finite element model were compared with the design strengths calculated using BS 5950-1: 2000. The results show that the design rules accurately predicted the column strengths for cruciform column sections using universal beam sections.