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研究钢管直径这一参数的变化对T形截面钢管混凝土芯柱抗爆性能的影响。通过非线性有限元分析软件ABAQUS对钢管直径不同的T形截面钢管混凝土芯柱在爆炸荷载作用下的动力响应进行了数值模拟。比较了普通T形钢筋混凝土异形柱和T形钢管混凝土芯柱抗爆性能的差异。通过变化钢管直径,得到钢管直径的变化对T形钢管混凝土芯柱抗爆性能的影响。研究表明:T形钢管混凝土芯柱的抗爆性能优于普通T形钢筋混凝土异形柱;T形钢管混凝土芯柱的抗爆性能随钢管直径的增大而加强。
The influence of the change of steel tube diameter on the antiknock performance of T-shaped CFST core-column was studied. The nonlinear finite element analysis software ABAQUS was used to simulate the dynamic response of T-section concrete-filled steel tubular columns with different pipe diameters under blast loads. The difference of antiknock performance between ordinary T-shaped reinforced concrete special-shaped columns and T-shaped concrete filled steel tubular columns is compared. By changing the diameter of the steel pipe, the influence of the variation of the steel pipe diameter on the anti-explosion performance of the T-shaped concrete-filled steel tubular column was obtained. The results show that the antiknock performance of T-shaped concrete-filled steel tubular column is better than that of ordinary T-shaped reinforced concrete column. The antiknock performance of T-shaped concrete-filled steel tubular column increases with the increase of pipe diameter.