本文将六四式军用梁的标准三角和端构架各作为一个单元进行分析，得出单元刚度矩阵及坐标变换矩阵，介绍用六四梁拼组结构刚度矩阵的组集方法。将此方法的计算结果与传统析架模型的计算结果进行比较，对拼组结构的强度设计理论进行讨论。

This paper analyses the "64 Type" beam unit as a finite clement. Its clement stiffness matrix and coordinate switch matrix arc obtained，and then the method of assembling primitive stiffness matrix of the structure is introduced. Comparing the calculation results of a simply supported beam assembled by "64 Type"beam units and that of the truss model，the theory of strength design is discussed.