Analysis of High-strength Materials on the Hysteretic Performance of Square Concrete Filled Steel Tube Columns
In order to investigate the influence of using high-strength steel and high-strength concrete materials on the hysteresis performance of square concrete filled steel tube columns under low cycle loads,the finite element analysis software ABAQUS was used to establish the numerical analysis models of such component.The accuracy of the established models was verified by comparing them with existing experimental results.Based on the established mod-els,the effects of different materials strengths on the load-displacement hysteresis curve,load-displacement skel-eton curve,bearing capacity,and energy dissipation capacity of square concrete filled steel tube columns were ana-lyzed by changing the steel yield strength and the concrete compressive strength.The research results indicate that introducing high-strength steel and high-strength concrete materials into square concrete filled steel tube columns can improve the load-bearing capacity and energy consumption capacity of such component,and the seismic performance of such component can be improved better.