碳纤维布加固钢筋混凝土开孔平板的非线性有限元分析  

A Nonlinear Finite Element Analysis of RC Flat Plates with Opening Strengthened by CFRP

作　　者：张益多[1] 刘荣桂[2] 朱红梅[2] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003 [2]江苏大学理学院,江苏镇江212013

出　　处：《建筑科学》2006年第5期6-9,共4页Building Science

基　　金：国家自然科学基金研究项目(50178018)

摘　　要：采用ANSYS有限元软件对五块碳纤维布加固的钢筋混凝土开孔平板进行了非线性数值计算与分析,有限元分析内容包括混凝土和碳纤维布的应力分布图、钢筋和碳纤维布的应力变化规律以及板的变形和裂缝发展过程,并把有限元计算结果与试验结果进行比较分析,比较分析表明有限元计算结果与试验结果吻合良好,运用有限元分析能够较精确地模拟加固板的受力过程。By using the software ANSYS＇s nonlinear model, numerical calculations and analyses were carried out to simulate the full process of experiment of five RC flat plates with opening strengthen by CFRP. Through the finite element analysis, the regularity was investigated of the stress variation of reinforcement and CFRP as well as the developmental process of deformations and cracks of strengthened plates. A comparison was made between the results of FEA and experiment and the results of FEA agree well with the experimental values. This indicates that the nonlinear finite element analysis can provide a considerably good estimate of the mechanical performances of strengthen plates under pressure.

关 键 词：碳纤维增强复合材料 钢筋混凝土平板 加固 开孔 有限元分析 

分 类 号：TU375.2[建筑科学—结构工程] TU528.582