高层建筑三维弹塑性动力分析

为了计算在各种静动荷载以及单向,双向地震作用下复杂体形高层建筑非线性反应,本文提出了一种组合结构计算模型和算法。按本文方法研制了通用的计算机程序,利用这个程序可作常规的静动力分析,完成结构各部件的截面设计。然后根据实配钢筋,进行弹性或弹塑性动力分析。进行弹塑性动力分析时对于各类不同的单元,提供了不同的屈服准则。程序也适用于求解地基、基础与上部结构共同作用的动力反应问题。文中给出了实际工程算例。

Three Dimensional Analysis of Inelastic Dynamic Responses of Tall Buildings

This paper presents a mechanical model of composite structures and a conventional method for nonlinear dynamic response analysis of complex-shaped tall buildings under earthquake actions from one or two directions and various loads.According to the above-metioned method, the author has worked out a general system of finite element analysis for electronic computer.This system is used to analyze superstructure and foundation as well as to design member sections of the structure.Linear or nonlinear dynamic analysis can be carried out according to the actual amount of reinforcement. Various yield criteria are given to different elements for inelastic analysis. It can also be applied to dynamic response of superstructure-foundation-soil interaction. Finally,a practical example is presented in this paper.