FRP加筋混凝土梁受弯性能有限元分析  

Finite element analysis of flexural behavior of concrete beam reinforced with FRP bar

作　　者：王勃[1] 付德成[1] 尹新生[1] 

机构地区：[1]吉林建筑工程学院土木工程学院

出　　处：《混凝土》2008年第5期13-15,共3页Concrete

基　　金：建设部研究开发项目(06-k1-25);中国博士后科学基金(20060390802);黑龙江省博士后基金(LBH-Z05123);吉林建筑工程学院博士科研启动基金资助

摘　　要：建立了FRP加筋混凝土梁的有限元模型,对GFRP和CFRP加筋混凝土梁受弯性能进行非线性有限元分析,GFRP和CFRP加筋混凝土梁的开裂荷载计算值比试验值分别低15.4%和4.2%;极限荷载计算值比试验值分别高12.7%和4.0%;最大变形计算值比试验值分别高4.0%和低19.2%。荷载-变形计算曲线和试验曲线吻合较好,并能模拟混凝土受压裂缝出现后的延性性能。The finite element model of concrete beam reinforced with FRP bar is presented.The calculated crack load was 15.4% and 4.2%, the ultimate load was 12.7% and 4.0% larger ,the maximum deflection was 4.0% larger and 19.2% lower compared with experimental value for the concrete beam reinforced with GFRP and CFRP bar,respectively.The calculating curves of load-deflection relationship agree well with the experimental curves, the ductile behavior can be simulated after the concrete crash, based on nonlinear finite element analyzing.

关 键 词：FRP筋 混凝土梁 有限元模型 非线性 荷载-变形 

分 类 号：TU528.57[建筑科学—建筑技术科学]