摘要
综合考虑几何及材料非线性的影响,利用有限元分析软件ANSYS,建立了吉林市临江门独塔斜拉桥实体单元有限元模型,对斜拉桥关键部位进行了非线性静力分析,结果表明,考虑材料非线性影响后塔梁固结处及主梁的应力和位移平均增大10%,索应力最大相差20%,因此对于中小跨度斜拉桥应考虑材料非线性的影响。
Taking into account material and geometry nonlinearity, a finite element model of Jilin Linjiangmen cable-stayed bridge with single tower is presented by ANSYS, and key parts of cable-stayed bridge is studied through nonlinear static analysis, The results show that the stress and displacement of key parts are averagely larger at about 10%, which calculates material nonlinearity and the difference max reaches 20% in the cables. So material nonlinearity effects are very outstanding to the middling span cable-stayed bridge.
出处
《山西建筑》
2011年第31期155-157,共3页
Shanxi Architecture
关键词
独塔斜拉桥
非线性静力分析
材料非线性
几何非线性
cable-stayed bridge with single tower, nonlinear static analysis, material nonlinearity, geometry nonlinearity
