《混凝土结构设计规范》修订简介(六)——混凝土结构的结构分析

Introduction of revision of Code for design of concrete structure part Ⅵ:Structure analysis of concrete structure

介绍《混凝土结构设计规范》中有关结构分析的修订要点。规范修订强调结构分析中基本假定和计算简图的作用,详细介绍了混凝土结构分析的原则和基本分析方法:弹性、内力调幅、弹塑性、塑性极限、间接作用分析方法,以及试验分析等应注意的问题。还介绍了结构分析所需的有关参数、本构关系以及用于二、三维结构应力设计的混凝土多轴强度准则。可供设计人员理解修订规范的背景,准确、合理地进行结构内力分析及设计参考。

The key point of structural analysis in Code for design of concrete structure was introduced.The basic assumptions of the structural analysis as well as the role of the simplified diagram were emphasized in this revision,the principle and basic methods of the concrete structural analysis,including elastic,amplitude modulation of internal force,elastic-plastic,plastic ultimate,indirectly interaction analysis and the problems deserving attention in test analysis,were introduced.The related parameters and constitutive models needed in structural analysis,and multi-axial strength criterion used in 2-D and 3-D structural stress design were introduced,too.It can be used for designers to understand the background of this revision of the code and carry out structural analysis and design accurately and rationally.