缆索承重桥梁全桥气动弹性模型模态测试分析  

Modal Analysis of Aeroelastic Full Model of Cable-Supported Bridges

作　　者：郭震山[1] 宋锦忠[1] 陈艾荣[1] 

机构地区：[1]同济大学,上海200092

出　　处：《结构工程师》2003年第4期63-69,共7页Structural Engineers

摘　　要：本文详细介绍了大跨缆索承重桥梁全桥气弹模型模态测试分析方法 ,结合这类桥梁全桥模型的结构及模态特征探讨了影响模态测试分析结果的各种因素。并将这些方法应用于主跨为 14 90m的润扬长江公路大桥南汊悬索桥全桥气弹模型模态测试分析 ,得到了较为理想可信的模态测试分析结果。Modal analysis method of aeroelastic full model of cable-supported bridges is introduced. Based on the characteristics of full model of cable-supported bridges, the factors that will affect the results of modal analysis are discussed. As an example, the modality of full model of Runyang suspension bridge is anlysised by this method.

关 键 词：缆索承重桥梁 全桥气动弹性模型 模态测试 悬索桥 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]