中文摘要：

为了研究铺装层厚度、弹性模量和行车荷载对空心板桥铰缝影响规律,以实际工程为背景,采用通用有限元软件ANSYS建立了简支空心板桥有限元分析模型,在模型得到验证的基础上,通过改变桥面铺装层厚度、弹性模量和行车荷载,以此来了解简支空心板桥梁铰缝受力特性。分析结果表明,铰缝内应力随着铺装层厚度和弹性模量的增大而减小,其中以铰缝竖向剪应力减小最明显;超载能显著增加铰缝内应力,是造成空心板铰缝破坏最主原因;增加桥梁水平荷载对铰缝内横向正应力和竖向剪应力基本无影响,但会一定程度增加纵向剪应力。

英文摘要：

In order to study the pavement layer thickness,modulus of elasticity and driving load of hollow hinge joints in hinged slab bridge,based on the actual project as the background,using finite element software ANSYS to simply supported hollow slab bridge finite element analysis model is established,by changing the surfacing layer thickness,modulus of elasticity and vehicle load,which is to understand the hinge joints in hinged hollow slab bridge mechanical characteristics. Analysis results show that the stresses in the hinge joints decreases with the increasing of modulus of elasticity and the pavement layer thickness,and vertical shear stress decreases more; Overload can significantly increase the stresses in the hinge joints,which is the most main reason for the hinge joints in hinged hollow slab damage; Increasing horizontal load of the bridge transverse normal stress and vertical shear stress in basic hinge joints in hinged is no effect,but will increase the longitudinal shear stress.