摘要
对高速铁路中的大跨度混凝土桥梁作了简要的介绍．将列车和桥梁作为一个联合动力体系，以一座跨径布置为８０ ＋ ２ ×１６０ ＋ ８０ｍ 的连续刚构混凝土桥梁为研究对象，对高速列车过桥时的空间振动响应进行了计算和分析。
Some long span concrete frame bridges in high speed railway are introduced in this thesis. Bridge and vehicle are analyzed as one coupled dynamic system. One continuous rigid-frame bridge(80+2×160+80 m) is calculated as an example, and safety of vehicles and comfort of passengers are evaluated.
基金
国家"九五"重点科技攻关项目
