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采用ABAQUS有限元分析软件分别对来福士塔楼一悬挂部分顶部初始节点和改进节点建立三维力学模型,对其进行了弹性分析和弹塑性极限静力分析。计算结果表明,两种节点均满足弹性要求,改进节点中竖向加劲板仅对钢管混凝土柱外钢管和横向加劲板应力有一定影响,未影响节点极限承载能力。
The ABAQUS finite element analysis software was used to establish the three-dimensional mechanical model of the initial node and the improved node of the top part of a suspension tower of the Raffles Tower. The elastic analysis and the elasto-plastic ultimate static analysis were carried out. The calculation results show that the two kinds of joints satisfy the elastic requirements. The improvement of the vertical stiffeners in the joints only affects the stress of the steel pipe and the transverse stiffener outside the CFST column, and does not affect the ultimate bearing capacity of the joints.