The Computer Analysis of Unbraced Multi-Story Frames

摘要

The paper describes a computer program based on the sway-subassemblage method for the strength and drift analysis of unbraced, plastically designed, multi-story frames. It is intended that the program be a quick, reliable means of checking frame strength and drift for the practicing designer. For this reason, the program and a detailed explanation of its use are given as well as the assumptions and basic theories upon which it is based. More detailed explanations of the sway-subassemblage method can be found in the references listed at the end of this paper. The middle and lower stories of unbraced, multi-story, plane frames of up to eight bays are considered. In this region, the columns are assumed to be bent in almost symmetrical double curvature so that the sway-subassemblage can be used. The program is written in the Fortran IV language so that it is more generally applicable. (Author)