组合平面刚架结构的单元刚度矩阵和质量刚度矩阵，单元划分程序另外下载-Combination of plane frame structure element stiffness matrix and mass stiffness matrix, cell division process additional downloads

平面刚架单元划分程序，可以结合另外的程序计算刚度矩阵质量矩阵-Plane frame unit division procedures, the procedures can be combined with additional mass matrix stiffness matrix calculation