摘要
在悬索桥的抗风设计中 ,流线型箱梁由于具有较好的抗风性能而得到广泛应用 .通过经验公式分析和有限元两种方法得出箱梁梁高对悬索桥颤振稳定性的影响规律 ,并提出了常用桥宽下悬索桥梁高设计的近似公式 .另外 。
In the process of wind-resistance design of suspension bridges,streamlined box girder has been widely applied because of its better wind-resistance performance.In this paper,some laws about the influences of beam depth on flutter stability of suspension bridges are drawn by empirical formulas and FEM,and an approximate formula of design of beam depth of suspension bridges with a fixed width is proposed.In addition,some analysis on a special phenomenon of mode coupling is made in this paper.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第5期573-577,共5页
Journal of Tongji University:Natural Science
基金
国家自然科学基金重大资助项目 (5 9895 410)
关键词
颤振稳定性
悬索桥
加劲梁
梁高
振型耦合
参数分析
suspension bridge
beam depth
analysis of parameters
flutter stability
mode coupling
