Calculating the continuous beam, frame of single-span and multi-story by deflection method, the stiffness matrix is symmetrical three-diagonal.
用位移法计算连续梁、对称性荷载作用下的单跨多层刚架，总刚度阵为对称三对角阵。
The method presented in the paper is conceptually clear, the derivation being simple and easy to comprehend. It is also applicable to other single-span curve beam in space.
本文所介绍的方法概念清楚，推导过程简单，对于其他类型的单跨空间曲梁也同样适用。
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