本文主要讨论在一般小型设计室而无电子计算机的情况下,如何迅速而简便地计算低层多跨框架的内力。此设计法的基本特点是在框架梁的端部预先给定一个塑性弯矩,变框架为排架。该法尤其适用于仅有垂直均布荷载或等效均布荷载,并且忽略了框架侧向水平位移的情况。 This article focuses on how to quickly and easily calculate the internal forces of a low-rise multispan frame in a typical small design house without an electronic computer. The basic characteristic of this design method is that a plastic bending moment is given to the end of the frame beam, and the variable frame is a rack. This method is especially suitable for cases where there is only vertical uniform load or equivalent uniform load, and ignoring the horizontal lateral displacement of the frame.