大跨斜拉桥的动力计算模型和动力特性的分析及研究

Analytical Research on the Dynamic Characteistics and Calculation Model of Long-span Cable-stayed Bridge

基于有限元方法 ,以南京长江二桥南汊桥为例 ,对大跨径斜拉桥结构的空间动力计算模型进行研究 ,针对斜拉桥的各个结构部分建立不同的计算模型 ,然后进行动力特性计算和分析 .

Based on the methed of finite element, the paper takes the second Nanjing Yantze bridge as an example to make a study on the spatial dynamic calculation modcl of long-span cable-stayed bridge,and establishes different models according to different parts of cable-stayed bridges. Then the calculation of its dynamic characteristics is carefully studied.