结构动力分析的竖向子结构法

从工程设计应用出发提出一种高层建筑结构三维直接动力分析方法，该方法通过利用子结构技术将高层建筑结构规模庞大的空间整体分析模型沿超重方向划分成若干个规模相对很小的竖向子结构，从而最大限度地降低了三＝维动力分析中整体结构动力平衡方程的阶数。

Structural Seismic Response Analysis by Vertical Substructure Technique

This paper presents a method of 3 D dynamic analysis for tall building structures.By the vertical substructure technique,the 3 D analysis model of tall building is sub divided into a few relatively small vertical substructures.Thus,the degrees of freedom of dynamic equations are greatly reduced.This method is clear in physical definition and it can be used for general purpose.What's more,the CPU time it requires is only a fraction of those needed in the standard procedure.3 D seismic response analysis of tall building structures can be done on micro computers by means of this method.Finally,the reliability of the method is demonstrated with an example of real structure and some conclusions and suggestions are given.