Finite Element Analysis of Spontaneous-Combustion Coal Gangue Concrete Filled Round Steel Tube Medium-Length Columns under Axial Compressive
To investigate the axial compression performance of circular steel tube-coal gangue concrete medium-length columns and discern the influence patterns of various design parameter variations on specimen axial load-bearing capacity,a formulation for axial load-bearing capacity is proposed.A computational model is developed using ABAQUS software.After verifying the accuracy and effectiveness of the finite element model,the entire process of load analysis for typical components and the variation of axial load-bearing capacity under different conditions are analyzed.It is observed that the increase in self-ignition coal gangue aggregate(SCGA)content has a negligible influence on the axial load-bearing capacity of the components,with an impact of no more than 3.6％.The calculated bearing capacity formula,considering the aspect ratio,stability factor,and SCGA substitution coefficient,exhibits an error within 10％.
CFSTmedium-length columnSCGAaxial compression capacityslenderness ratio
万方数据
维普
