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基于混凝土的塑性损伤模型,使用ABAQUS有限元软件对试验中的复合钢管混凝土轴压柱进行数值模拟,得出试件的荷载-位移曲线,对比试验中的承载力,并分析外层方钢管的壁厚、内层圆钢管的壁厚、混凝土强度3个参数对复合钢管混凝土轴压柱承载力的影响。
Based on the plastic damage model of concrete, ABAQUS finite element software was used to simulate the concrete-filled steel tubular column under axial load. The load-displacement curves of the concrete-filled steel tubular were obtained. The bearing capacity of the concrete was compared. Wall thickness, inner wall thickness of circular steel tube and concrete strength on the bearing capacity of concrete filled steel tubular column under axial compression.