摘要
首先较为全面地阐述了采用理论分析、风洞试验、现场实测和数值模拟四种方法研究大跨度桥梁涡激振动的主要成果;然后分析了影响涡激振动的主要因素,细致总结了主梁、桥塔、缆索和拱肋等主要构件涡激振动特点;介绍了各种抑振措施,以提高涡激振动起振风速和限制涡激振动振幅;最后对大跨度桥梁涡激振动研究的现状进行了总结,并对今后的研究重点和发展方向进行了展望。
For vortex-induced vibration of long-span bridges,the main achievements of theoretical analysis,wind tunnel test,field measurement and numerical simulation were comprehensively reviewed here.The primary influential factors of vortex-induced vibration were also analyzed and the vortex-induced vibration characteristics of major components,such as,girder,pylon,cable and arch rib were summarized in detail.Furthermore,the vibration suppression measures enhancing the on-set wind velocity and limiting the amplitude of the vibration were presented.In the end,for study on vortex-induced vibration of long-span bridges,the conclusions and recommendations for future emphasis and directions were addressed.
出处
《振动与冲击》
EI
CSCD
北大核心
2010年第10期40-49,共10页
Journal of Vibration and Shock
基金
国家自然科学基金(50708012)
高等学校博士点新教师基金(20070141073)
辽宁省博士启动基金(20081086)
中国博士后基金(20090451473)
关键词
大跨度桥梁
涡激振动
风洞试验
数值风洞
现场实测
抑振措施
long-span bridge
vortex-induced vibration
wind tunnel test
numerical simulation
field measurement
suppression measure
