预应力碳纤维布加固钢筋混凝土梁非线性有限元分析  

Nonlinear finite element analysis of concrete beams strengthened with prestressed CFRP sheets

作　　者：肖红菊[1] 孙玉永[1] 

机构地区：[1]铜陵学院土木建筑系,安徽铜陵244000

出　　处：《四川建筑科学研究》2012年第4期78-81,共4页Sichuan Building Science

基　　金：安徽省省级自然科学研究项目(KJ2010B235)

摘　　要：采用预应力碳纤维布对钢筋混凝土梁进行增强加固,能够充分发挥碳纤维布高强的性能,提高加固效果。组合利用Visual Basic,Fortran以及Surfer等计算程序,编制了完整的预应力碳纤维布加固钢筋混凝土梁的非线性有限元分析程序,程序具有良好的操作界面、高效的计算速度以及直观的显示过程。在程序编制过程中,考虑了碳纤维布与混凝土之间的粘结滑移关系。通过与3根室内试验梁结果进行对比,可知程序计算得到的承载力、荷载-挠度曲线以及CFRP应变曲线都与试验值较吻合。Using prestressed CFRP reinforced concrete beams could improve the reinforcement effect. United Visual Basic, Fortran and Surfer,the nonlinear finite element analysis program to analyze concrete beams strengthened with prestressed CFRP was programmed. It had a good interface and efficient computational speed and the intuitive display works. The bend-slip between CFRP and concrete was considered in the program. Compared the experimental results,it was shown that the capacity,load-deformation curve and CFRP strain were in good agreement with the experimental values.

关 键 词：预应力 碳纤维布 加固 钢筋混凝土梁 有限元分析 

分 类 号：TU375.1[建筑科学—结构工程]