一、序言建筑物的抗震设计基本上可分为强度设计和延性设计。一般地说,仅靠结构强度来承受强烈地震的设计是很困难的,近几年延性设计开始受到人们的重视。因此预测对应于结构承载力的强震时的塑性变形反应(延性系数)及其沿结构高度的分布形式是其中主要问题之一。文献“之一”主要着眼于 I. Introduction The seismic design of buildings can basically be divided into strength design and ductility design. Generally speaking, it is very difficult to withstand the design of a strong earthquake only relying on structural strength. In recent years, ductile design has begun to attract people’s attention. Therefore, predicting the plastic deformation response (ductility coefficient) corresponding to the structural bearing capacity and its distribution along the height of the structure is one of the major problems. Literature “One ” mainly focuses on