【摘要】 基于混凝土结构设计规范提供的混凝土本构关系,通过引入损伤因子,对ABAQUS混凝土塑性损伤模型中所涉及的材料参数标定和验证进行了研究。用规范给予的本构关系对混凝土材料进行参数计算,然后对比分析模拟结果和规范曲线,来验证混凝土损伤塑性模型(CDP模型)参数设置的正确性;通过对一配置弯起钢筋的混凝土简支梁进行精细化建模,验证CDP模型在混凝土结构非线性分析中的可靠性,为钢筋混凝土结构精细化非线性有限元分析提供参考。更多还原

【Abstract】 Based on the concrete constitutive relationships provided by the code for concrete structure design,the materials’ parameters calibration and verification of concrete damage plasticity model were studied by introducing the damage factors. To verify the correctness of the parameters of CDP model,the method of contrasting the simulation results and the criterion curves is used,followed by calculating the concrete material parameters on basis of the code’s constitutive relationships; and to verify the reliability of CDP model applied to the non-linear analysis of concrete structure,a simple support concrete beam with bend-up bars is modeled precisely. Some valuable advices were promoted for accurate finite element analysis of reinforced concrete structures using this model.更多还原