Effect of Slenderness Ratio on Euler Critical Load for Elastic Columns with ANSYS.
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 5
Abstract
The slender columns are widely used in modern high rise buildings. The bearing capacity of such columns is, obviously, dependent on the effective length or, we can say, slenderness ratio. This paper presents the effect of slenderness ratio over the elastic structural steel columns based on the equivalent model. The critical load that a column can withstand for a defined slenderness ratio for the design is being determined by the buckling analysis of the column. The designed column being circular in cross-section is fixed at one of its ends and free at the other. A vertical load was applied to the slender column top, and the lateral displacement was to be calculated for the whole structure. The computational evaluations were performed with the general purpose finite element code ANSYS 19.0, which can effectively depict the behavior of the designed columns. Finite element model was developed to determine the overall structural response of several designed columns under the project. Then, Eigenvalue Buckling analysis was conducted and buckling critical load could be evaluated by the obtained load multiplier. Finally, the analytic and computational results are compared to assure the reasonable accuracy. It is followed by the graph depicting the effect of slenderness ratio over the buckling load.
Authors and Affiliations
Prithviraj R Desai, Chintada Satish
Keywords
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