钢桁拱桥吊杆风致振动影响因素分析  

Analysis of Influential Factors of Wind-Induced Vibration of Steel Truss Arch Bridge Hangers

作　　者：李龙安[1] 

机构地区：[1]中铁大桥勘测设计院有限公司,湖北武汉430050

出　　处：《桥梁建设》2008年第3期19-22,共4页Bridge Construction

摘　　要：以钢桁拱桥的H型吊杆的风致振动为工程背景,分析了吊杆的雷诺数Re、振动因子ξ、应力大小及应力状态、边界条件、断面形状对钢桁拱桥吊杆振动的影响程度。Against the background of wind-induced vibration of the H-shaped hangers of steel truss arch bridges, this paper analyzes the degree of influences of the Reynolds number Re, vibration factor ξ, stress magnitude, stress state, boundary conditions and sectional shapes of hangers on the vibration of the hangers of the steel truss arch bridges.

关 键 词：钢桁拱桥 吊杆 风致振动 雷诺数 振动因子 支承条件 应力状态 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]