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该文对6个圆钢管混凝土短斜柱、10个矩形钢管混凝土短斜柱进行了竖向荷载作用下的试验研究,探讨了倾斜角度对圆、矩形钢管混凝土短斜柱抗压力学性能的影响,建议了圆、矩形钢管混凝土短斜柱强度承载力计算式。结果表明:1)随着倾斜角度的增加,圆、矩形钢管混凝土短斜柱极限承载力和刚度均有下降的趋势;2)建议的极限承载力计算式计算结果与试验结果总体上较为吻合,可用来预测圆、矩形钢管混凝土短斜柱的截面强度。
In this paper, six columns of CFST short columns and ten columns of CFST short columns were tested under vertical loading. The influence of the inclined angle on the mechanical properties of short circular and rectangular CFST slanting columns , The formula of strength bearing capacity of circular and rectangular CFST short inclined columns is proposed. The results show that: 1) the ultimate bearing capacity and the stiffness of CFST short columns decrease with the increase of the inclined angle; 2) The proposed calculation formula of ultimate bearing capacity is in good agreement with the test results, It can be used to predict the cross-section strength of circular and rectangular CFT short columns.