钢筋混凝土黏结应力计算方法比较  

Comparison of calculation methods of bond stress of reinforced concrete

作　　者：陈梦成[1] 杨超[1] 王琴 吴小飞 CHEN Mengcheng;YANG Chao;WANG Qin;WU Xiaofei(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China;Wuhan Yaohua Bridge Engineering Technology Co.,Ltd.,Wuhan 430071,China;Tanmu Information TechnologyWuhan Co.,Ltd.,Wuhan 430071,China)

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013 [2]武汉耀华桥梁工程技术有限公司,湖北武汉430071 [3]檀慕信息技术(上海)有限公司武汉分公司,湖北武汉430071

出　　处：《混凝土》2019年第11期62-65,共4页Concrete

基　　金：国家自然科学基金资助项目（51378206,51468017）;江西省自然科学基金资助项目（20143ACB20008）

摘　　要：为了进一步了解钢筋与混凝土之间黏结应力的分布情况。基于已有的拔出试验,采用ANSYS有限元程序对该试验进行了非线性有限元数值模拟,对钢筋混凝土拔出试件黏结性能进行了细致分析。程序中采用非线性弹簧单元COMBIN39模拟钢筋与混凝土之间的黏结滑移,同时考虑了黏结力随位置变化的位置函数,更加准确的模拟黏结滑移关系。分析结果发现:数值结果与理论结果和试验结果吻合较好。最后采用Matlab编程进行追赶法计算,比较计算结果发现计算结果与数值结果和理论结果吻合较好。In order to look into the bond stress distribution between reinforcement and concrete.Based on the existing pull-out test,the nonlinear finite element numerical simulation was carried out by using ANSYS program.The bond performance of the reinforced concrete pull-out specimens is analyzed in detail.The unit COMBIN39 is used to simulate the bond slip between reinforcement and concrete and the position function of bond force is considered in the program to simulate the bond slip more accurately.The results show that the numerical results agree well with the test and theoretical result.Finally,Matlab programming was used to carry out the catch-up method,and the results found that the calculated results were in good agreement with the numerical and the theoretical result.

关 键 词：拔出试验 数值模拟 位置函数 追赶法 

分 类 号：TU528.571[建筑科学—建筑技术科学]