摘要
介绍了在湖南洞庭湖大桥上应用磁流变阻尼器进行拉索减振的试验情况 ,得到了安装阻尼器前后拉索系统的动力特性。试验结果显示系统的模态阻尼比在安装磁流变阻尼器后有大幅增长 ,具有良好的减振效果。
A full scale test of mitigating vibration of stay cable applying MR damper on Dongting Lake Bridge is introduced, dynamic properties of cable system with or without damper are obtained. The results show that modal damping ratio of cable system with MR damper is more increased, it has well effect of mitigating vibration. The measured acceleration responses also prove that MR damper is an effective means for mitigating vibration of stay cable.
出处
《桥梁建设》
EI
CSCD
北大核心
2002年第2期11-14,共4页
Bridge Construction
基金
国家自然科学基金 ( 5 97780 43 )
与香港理工大学合作项目联合资助
关键词
斜拉桥
斜拉索
桥梁振动
振动试验
cable stayed bridge
stay cable
bridge vibration
vibration test
