取杆端位移和对应的杆端力作为状态变量，利用传递矩阵和逐段分析的方法来分析多层框架，并建立了单跨多层框架的传递矩阵。在分析过程中，框架层数的增加只增加计算过程中的矩阵相乘的次数，而待求的基本未知量的数目始终保持不变，从而提高了计算机分析问题的能力。 Take the displacement of the rod end and the corresponding rod force as the state variables, the multi-layer frame is analyzed by using the transfer matrix and the method of piecewise analysis, and the transfer matrix of single-span multi-layer frame is established. In the analysis process, the increase of the number of frames only increases the number of matrix multiplication in the calculation process, and the number of basic unknowns to be sought remains constant, which improves the ability of the computer to analyze the problem.