大跨径斜拉桥空气动力稳定性的参数研究  

Parametric Studies on Aerodynamic Stability for Long-Span Cable-Stayed Bridges

作　　者：孟松兔[1] 张新军[1] 刘相玉 

机构地区：[1]浙江工业大学建筑工程学院,杭州市310032 [2]杭州市市政公用建设监理公司,杭州市310004

出　　处：《公路》2003年第7期123-125,共3页Highway

摘　　要：运用多模态颤振的有限元分析方法 ,分别从边主跨比、塔高与主跨的比值、桥塔型式以及边跨辅助墩的设置等参数着手 ,对主跨 5 0 0 m的荆沙长江大桥进行了空气动力稳定性的参数分析 。Using the method of finite element based multi mode flutter analysis, parametric analyses on aerodynamic stability for the Jingsha bridge over the Yangtze River are carried out including the ratios of side span to main span and height of tower to main span, lateral configuration of tower, and the subsidiary pies in the side spans. Main parameters that affect aerodynamic stability of long span cable stayed bridges are found out.

关 键 词：斜拉桥 空气动力稳定性 有限元分析 荆沙长江大桥 边主跨比 主塔高跨比 桥塔型式 边跨辅助墩 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]