大跨度曲线连续刚构的总体参数分析

Global Parameter Analysis of Large-span Continuous Curved Rigid Frame

大跨度曲线连续刚构的结构总体受力比较复杂,可供设计参考的工程实例不多,有必要进行结构的总体参数分析。以曲线连续刚构的平曲线半径、桥墩刚度、边跨的约束刚度为总体参数,利用空间梁单元模型对曲线连续刚构进行详细的结构总体分析,得出结构在不同参数下的支座反力、变形及内力的变化情况,为曲线连续刚构的设计提供理论参考。

Few engineering cases can be references for the design of large-span continuous curved rigid frame, and its global structural behavior is very complicated, so it is necessary to conduct parameter global analysis of the structure. Taking the radius of horizontal curve, pier stiffness and restraint stiffness of side span as global parameters, variations of reactions at supports, deflection and internal forces of the structure under different parameters are obtained through detailed global structural analysis by 3D beam element model. The analysis results can be theoretical references for the design of continuous curved rigid frame.