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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。
Introduce the main points about the structural analysis in “Code for Design of Concrete Structure”. The amendments to the Code emphasize the role of basic assumptions and calculation plots in structural analysis. The principles and basic analytical methods of concrete structure analysis are introduced in detail: elasticity, internal force amplitude modulation, elasto-plasticity, plasticity limit, indirect effects analysis, and experimental analysis The problem. The relevant parameters and constitutive relations as well as the multi-axial strength criterion of concrete used in two-and three-dimensional structural stress design are also introduced. For designers to understand the background of the revised norms, accurate and reasonable structural force analysis and design reference.