合六叶公路桥不等厚铺装结构的动力响应研究

Research on Dynamic Response of Unequal Thickness Pavement Structure of Heliuye Highway Bridge

为研究合六叶公路桥不等厚结构在行车荷载作用下的力学响应,首先采用Midas Civil建立合六叶公路桥的整桥模型,分析其受力情况最不利的不等厚过渡区位置及其边界条件,然后在有限元分析软件ABAQUS中建立局部箱梁的等比例细部模型,通过编写Dload子程序,实现荷载的动态加载,并在不同加载方向条件下,研究其不等厚铺装结构的动力响应。

In order to study the mechanical response of the unequal thickness structure of Heliuye highway bridge under the action of driving load,the whole bridge model of Heliuye highway bridge is established by Midas Civil,and the position of the unequal thickness transition zone with the most unfavorable stress condition and its boundary conditions are analyzed.Then the equal proportion detail model of the local box girder is established in the finite element analysis software ABAQUS,and the dynamic loading of load is realized by compiling Dload subroutine,and thedynamic response of its unequal thickness pavement structure is studied under different loading directions.