斜拉桥拉索风雨振动二次轴向流影响分析  

Investigation of Second Axial Flow in Rain-wind Induced Vibrationof Stay Cables in Cable-Stayed Bridges

作　　者：王德山 刘峰 汪至刚[3] 

机构地区：[1]江西省上饶市公路管理局,上饶334000 [2]江西省交通科学研究院,南昌330012 [3]浙江大学土木工程学系,杭州3100277

出　　处：《华东交通大学学报》2005年第2期36-39,共4页Journal of East China Jiaotong University

摘　　要：对斜拉桥拉索风雨振动中二次轴向流的产生及作用机理进行分析.认为二次轴向流的产生应从三维边界层的理论出发,而二次轴向流对风雨振动的影响则认为与翼型的基底射流(base-bleed)作用机理相似.This study attempts to clarify mechanism of a secondary axial flow in rain-wind induced vibration of the stay cables in cable stayed bridge. This secondary axial flow is considered to result from the three dimensional shear layers, and it plays a similar role to that of the base-bleed from the blunt trailing edge.

关 键 词：风雨振动 轴向流 斜拉桥 拉索 作用机理 三维边界层 

分 类 号：U441.3[建筑科学—桥梁与隧道工程] TQ920.5[交通运输工程—道路与铁道工程]