高速铁路斜交刚构连续梁桥车桥耦合振动分析

摘要

The natural frequencies of a skew continuous rigid frame bridge on high-speed railway are calculated by using slab model, four beams, two beams and single beam models. It is proposed using four beams model to analysis coupled vibration of vehicle and bridge. Results show that skew continuous rigid frame bridge is of enough stiffness and good unity, the safety and comfort of moving high-speed train can be guaranteed.%分别采用板单元、四片式、两片式和单片式梁单元模型来计算高速铁路斜交刚构连续梁桥的空间自振频率，通过比较和分析，推荐采用四片式梁单元进行车桥耦合振动分析。计算结果表明斜交刚构连续梁桥具有足够的刚度和良好的整体性，可以满足高速列车行车时的安全性和舒适性要求。