用手算法计算刚架,弯矩分配法是工程界喜用的最简便的方法。刚架承受水平结点荷载时,能否采用弯矩分配法进行计算,关键在于能否事先比较精确地获得弦转角β_(n,n+1)(=△/h_(n,n+1))值。本文将阐述等层高等断面多层多跨刚架的弦转角β_(n,n+1)的计算;及该 The hand frame algorithm is used to calculate the rigid frame, and the bending moment distribution method is the simplest method used by the engineering community. When the rigid frame bears the horizontal node load, whether the bending moment distribution method can be used for calculation is the key to whether the string rotation angle β_(n,n+1)(=△/h_(n,n+1)) can be accurately obtained in advance. )value. This article will describe the calculation of the chordal angle β_(n,n+1) of a multi-level multi-span multi-span rigid frame with equal height; and