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本文提出了一种结构静力重分析方法。通过引入结构刚体位移特征向量,可以导出结构广义柔度矩阵,原阶数较高的刚度方程被转化成一阶数较小的线性系统,位移一般解可以在边界条件尚未引入结构刚度矩阵之前导出,对于有局部变化的结构,新的结构广义柔度矩阵可以迅速进行修改。这种静力重分析可以用在载荷条件、边界条件、结构单元同时或分别改变时的静力分析之中,文中提供了两个算例,以证明此方法的有效性
This paper presents a structural static analysis method. The structural generalized flexibility matrix can be derived by introducing the displacement vector of structural rigid body. The stiffness equation with higher original order is transformed into a linear system with smaller first order. The displacement general solution can be derived before the boundary condition is introduced into the structural stiffness matrix. For structures with local changes, the new structural generalized flexibility matrix can be quickly modified. This static reanalysis can be used in the static analysis of load conditions, boundary conditions, and the structural elements changed simultaneously or separately. Two examples are provided to prove the effectiveness of this method