Dynamic and static behavior of a steel covered column

Abstract

Composite columns are used to increase the strength for a given cross sectional dimension; stiffness leadingto reduced slenderness and buckling resistance, corrosion and fire resistance in the case of concrete encasedcolumns. Also, they provide a formwork for concrete filled steel tubes and economical solutions with regardto material costs. They are effectively started to use in the world. This study presents the dynamic and staticbehavior assessment of a steel covered column. In the content of the study, full concrete filled rectangularsteel tube column as a composite column is selected for numerical analysis and its finite element model isconstituted using ANSYS software. Dynamic behavior of the model is obtained performing modal analysis.The natural frequencies and mode shapes are obtained as dynamic characteristics to understand dynamicbehavior. Then the model is statically performed. In static analysis, both of vertical and lateral loads areapplied to models. The displacement and stress changes in some critical nodes and sections and contourdiagrams are reported by graphs and figures after static analysis.