摘要
鉴于当前对影响悬索桥动力特性的一些关键参数少有系统研究的现状,采用有限元法分析了四渡河悬索桥的动力性能,并从中央扣的设置与否,主缆、吊索、加劲梁和索塔的刚度变化以及边界条件变化等方面进行了自振特性的参数影响分析,得出了若干结论,为悬索桥的优化设计提供理论依据。
Currently, the design parameters which influence the dynamic characteristics of suspension bridges are less studied systemically. The dynamic characteristics of Sidu River Suspension Bridge are analyzed using the finite element method, and the influences of design parameters, such as rigidity variations of the main cable, suspender, stiff girder and tower and terminal condition etc on dynamic characteristics of the suspension bridge are investigated. Some conclusions are indicated which provides theoretical basis for optimization design.
出处
《公路》
北大核心
2007年第11期41-45,共5页
Highway
关键词
悬索桥
动力特性
有限元法
参数分析
suspension bridge
dynamic characteristics
finite elemen method
parameter analysis
