摘要
为研究箍筋锈蚀对约束混凝土的影响,运用ABAQUS有限元软件对不同锈蚀率箍筋约束混凝土轴心受压构件进行分析,并引入配箍特征值λv表征箍筋不同锈蚀率ηs对构件的影响。分析结果表明:随着箍筋锈蚀率的增大,约束混凝土的承载力和变形能力均有不同程度的下降。通过对数据的回归分析,建立了箍筋锈蚀后约束混凝土应力-应变模型。
Considering the effect of stirrup corrosion on the performance of confined concrete, ABAQUS finite element software is used to research on different corrosion rate of axial compression column. Introduce the stirrup eigenvalue λ, to different corrosion rate of stirrups η . on the components. The results show that,with the stirrups corrosion rate increases, the bearing capacity and deformation capacity of confined concrete have different degrees of decline. By the regression analysis on the simulation data, stirrups corrosion confined concrete stress -strain model has been established.
出处
《四川建筑科学研究》
2013年第5期94-97,111,共5页
Sichuan Building Science
基金
国家杰出青年科学基金(50725824)
陕西省"13115"科技创新工程项目(2010ZDKG-55)
关键词
箍筋锈蚀
有限元
配箍特征值
应力-应变模型
stirrup corrosion
finite element
stirrup characteristic value
stress-straln model
