摘要
文章利用有限元软件ABAQUS对再生混凝土梁柱节点进行建模分析和数值模拟,再生混凝土本构关系以普通混凝土本构模型为原型,结合再生混凝土材料性能试验进行修正,得到相应的本构关系及塑性损伤模型,能较好地模拟再生混凝土节点的受力状态,将框架中节点试验与分析结果进行对比分析。结果表明,试件Mises应力云图和极限阶段混凝土、钢筋变形图、刚度退化曲线模拟值与试验值吻合较好,证明了ABAQUS软件的模型及参数能较好地模拟再生混凝土构件的力学行为。
The recycled aggregate concrete beam-column joints are analyzed and simulated by using the finite element software ABAQUS. The ordinary concrete model is adopted for the constitutive relationship of recycled concrete, and based on the correction by recycled concrete material properties test, the constitutive relationship and damaged plasticity model are obtained to analyze and simulate the stress state of the recycled concrete joints. The test results and analysis results are compared and it is shown that the Mises stress contour, the diagram of concrete and steel deformation at ultimate stage, the stiffness degradation curve simulation values of specimens are in good agreement with the experimental values. It is proved that the model and parameters of ABAQUS can simulate the mechanical behavior of recycled concrete specimens.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第2期205-210,共6页
Journal of Hefei University of Technology：Natural Science
基金
住房与城乡建设部科学技术计划资助项目(2013-K4-46)
关键词
再生混凝土
中节点
ABAQUS软件
本构关系
塑性损伤模型
数值模拟
recycled aggregate concrete
interior joint
ABAQUS software
constitutive relationship damaged plasticity model
numerical simulation
