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本文用有限条元方法求解高层筒体结构的整体稳定及二阶位移分析。先把实际框筒结构连续化为正交各向异性折板结构,用有限条元离散化,在竖向采用了有良好性能的B样条函数。用最小势能原理建立稳定及二阶位移分析方程。可用于高层筒体结构及剪力墙结构等的空间稳定及二阶位移分析。
This paper uses the finite strip element method to solve the overall stability and second-order displacement analysis of high-rise drum structures. First, the actual frame tube structure is continuously transformed into an orthotropic plate structure, discretized with finite elements, and a B-spline function with good performance is used vertically. The stable and second-order displacement analytical equations are established using the principle of minimum potential energy. It can be used for space stability and second-order displacement analysis of high-rise tube structures and shear wall structures.