Damping Properties of Stay Cable-passive Damper System Installed with Visco-elastic Damper
In the present paper, the model of stay cable-passive damper system installed with visco-elastic damper was setup.The asymptotic solution of modal damping ratio of stay cable-passive damper system with installa tion of the visco-elastic damper was derived, when considering the influence of cable bending stiffness and cable sag, respectively.Maximum modal damping ratio and corresponding optimal damping coefficient,which indicated the relationships of the characteristics of the damper between the cable bending stiffness and sag was theoretically analyzed to obtain their close solutions, respectively.On the basis of these close solu tions and with the effects of cable bending stiffness and sag, numerical analysis of modal damping of stay ca ble-passive damper system installed with the visco-elastic damper was conducted.The numerical and analyti cal results show that the maximum modal damping ratio decrease and the corresponding damping coefficient increase, when considering the influence of the cable bending stiffness and cable sag.
Min Liu Guangqiao Zhang
School of Civil Engineering, Harbin Institute of Technology, Harbin, China China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu, China
国际会议
哈尔滨
英文
551-558
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）