给出了包括位移函数、刚度矩阵和荷载矩阵在内的理论分析过程，从而建立了半解析单元法。
Regular functions are set up and semi-analytical element method is constituted. Displacement functions, stiffness matrices and load matrices are presented in details.
本文用两种方法建立断面有畸变的任意断面形状任意箱数的薄壁箱梁的单元刚度矩阵和单元荷载矩阵的通式。
In this paper the formulas for the stiffness matrix and load matrix of thin-Walled elementary beams with distorted multieell sections are given.
通过推导单元特征方程的解及应用虚功原理，建立了墙元的刚度矩阵和荷载向量。
Stiffness matrix and load vector were founded on developing eigen-equation for wall element and applying principle of virtual work.
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