曲线桥曲率半径与桥墩刚度的协同作用规律研究

高墩曲线连续刚构桥的内力与变形不仅受到箱梁曲率半径的影响,同样也受到桥墩刚度的影响。目前对于两者协同作用规律所作的研究甚少。借助有限元程序ANSYS,分析具有不同曲率半径和桥墩刚度的桥梁在内力与变形上所存在的差异,并给出这些差异与曲率半径、桥墩刚度的内在联系,可为今后设计高墩曲线连续刚构桥选取合理的曲率半径和桥墩型式提供必要的参考。

Rule of Synergistic Action of Curvature Radius and Pier Stiffness of Curved Bridge

Abstract： The inner force and deformation of high pier continuous rigid frame bridge are influenced not only by the beam＇s curvature radius, but also by the pier stiffness. However, research on the synergistic action of the two factors is rare. By virtue of ANSYS, FEM software, the differences at inner force and deformation of the model with different curvature radius and pier stiffness are ob- tained in this paper. Moreover, the internal relation between the differences and the two factors are extracted also. It is hoped that some references can be provided for the future design, especially for selection of rational curvature radius and pier stiffness.