摘要
基于流体粘滞阻尼器自身的力学特性,分析了附加流体粘滞阻尼器对超大跨度斜拉桥的减震效果,着重分析了阻尼器参数、输入地震动特性(加速度峰值和频谱特性)对减震效果的影响.结果表明,流体粘滞阻尼器能显著地减小梁端纵向位移,减震效果取决于阻尼器参数,并对地震动特性很敏感.
In the paper, the mechanical characteristics of fluid viscous dampers are discussed firstly, and then the seismic response reduction of a super-long-span cable-stayed bridge by adding fluid viscous dampers is investigated. The emphasis is placed on the influence of damper parameters, peak acceleration and spectrum shape of earthquake excitations. The investigation indicates that adding fluid viscous dampers can significantly reduce the girder movements, and the reduction depends on damper parameters. The fluid viscous dampers are sensitive to characteristics of input earthquake motions.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第7期859-863,共5页
Journal of Tongji University:Natural Science
基金
上海市青年科技启明星计划资助项目(03QF14052)
关键词
超大跨度斜拉桥
流体粘滞阻尼器
减震效果
super-long-span cable-stayed bridge
fluid viscous damper
seismic response reduction
