约束混凝土损伤塑性模型的研究  

Study of Damage Plasticity Model for Confined Concrete

作　　者：葛康[1] 陈世鸣[1] 

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《结构工程师》2015年第1期14-20,共7页Structural Engineers

基　　金：国家自然科学基金(51078290)

摘　　要：混凝土损伤塑性模型经常用于混凝土结构的动力损伤分析中,目前国内外针对此模型的研究还仅限在未约束混凝土中,探讨了基于我国现行设计规范中所提供的混凝土单轴本构模型、未约束混凝土塑性损伤模型理论与约束混凝土的单向受压本构模型,提出了适用于约束混凝土的损伤塑性模型,并通过对约束混凝土柱实例进行分析,为进一步将该损伤模型应用于约束混凝土结构的非线性损伤分析提供了参考依据。Concrete damage plasticity model（CDP model） in ABAQUS is commonly used in dynamic damage analysis of concrete structures.Unconfined concrete were more studied for the CDP model.In this paper,with a comprehensive consideration of the stress-strain relations from Chinese code,the CDP model of unconfined concrete and the compressive stress-strain relation of confined concrete,an improved CDP model of confined concrete was proposed.Specific analysis of a confined concrete column was performed by using this model.The study serves as a theoretical basis for accurate nonlinear damage analysis of confined concrete structures.

关 键 词：混凝土 本构关系 塑性损伤模型 约束混凝土 

分 类 号：TU37[建筑科学—结构工程]