前言克劳斯氏的弯矩分配法和卡尼氏的迭代法,是以往工程界应用最为广泛的两种刚构分析方法。特别是卡尼法,由于其计算步骤简单机械,能用于比较复杂的有侧移刚构分析,近年来应用更为普遍。但是,两种方法都有一个共同的缺点,就是需要多次反复计算(多次分配、传递或反复代入),方能求得精确结果。有些场合(如有侧移刚构、空腹桁架等)收敛十分缓慢,计算工作量很大。另外,有些场合(如单层厂房排架),卡尼法甚至不能应用。本文提出一种新的刚构分析法——“分向一次代入法”,其计算步骤与熟知的卡尼法极 Introduction Klaus’s Moment Distribution Method and Carney’s Iteration Method are two of the most widely used methods for rigid frame analysis in the engineering field. Carney method, in particular, is more commonly used in recent years due to its simple calculation procedure and can be used for more complicated laterally moving rigid frame analysis. However, the two methods have a common disadvantage, that is, they require repeated calculations (multiple assignments, transmissions, or repeated substitutions) to obtain accurate results. In some cases (if there is a side-shift rigid frame, a hollow truss frame, etc.), the convergence is very slow and the calculation workload is large. In addition, Carnifa cannot even be applied in some occasions (such as a single-story workshop). This paper proposes a new method of rigid-frame analysis—“separation to one substitution method”. Its calculation steps and well-known Carney’s law