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Y形转换柱位于建筑主入口位置,是建筑造型上的创新尝试。Y形转换柱独特的结构形式给结构设计带来了新的挑战。设计中采用SAP2000截面设计器验算Y形柱的正截面承载能力;计算分叉位置节点域的抗剪能力;采用控制塑性铰开展顺序的思路验算Y形柱分叉位置下部柱端的塑性铰转动能力;最后,采用ABAQUS有限元软件对Y形柱进行非线性有限元分析以揭示节点区复杂受力状态下的应力分布。
Y-shaped conversion column is located in the main entrance of the building, is an architectural innovation attempt. The unique structure of the Y-shaped conversion column poses a new challenge to the structural design. In the design, the cross-section designer of SAP2000 is used to check the positive section bearing capacity of the Y-shaped column; the shear capacity of the node domain at the bifurcation position is calculated; the plastic hinged ability of the lower column end of the Y- Finally, ABAQUS finite element software is used to conduct nonlinear finite element analysis of Y-shaped columns to reveal the stress distribution under the complex stress conditions in the node area.