Abstract
Flat oval hollow sections are newly evolved cross-section shapes having oval hollow sections with flattened web plates and curved edges. They have aesthetic profiles and elegant appearances compared to the other sections. This paper provides a Finite Element (FE) computation on the axial load behavior of flat oval steel tubular columns. The FE models were developed by the numerical tool, Abaqus. The numerical model was first validated against the previous experimental data and was found to be in good agreement. The influence of the unsupported height to the outer diameter (L/D) ratio and the outer depth to thickness (D/t) ratio on the structural behavior of the specimens under axial compression has been reported. The obtained load-deformation curves were discussed. It could be seen that with the rise of the D/t value, the ultimate compressive strength decreases. And, the ultimate compressive strength increases with an increasing L/D ratio.
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