Design of Mitigation Damper with Support Flexibility for Stay Cable under Bridge Deck Excitation

摘要：

　　This paper studies cable-damper mitigation model due to indirect excitation caused by bridge deck excitation.In the new mitigation model,as a rule of thumb,we considered an attached spring associated in tandem with a damper to simulate the supporter flexibility.The result shows that the interaction between the flexibility of the support in the viscous damper could deeply impact the damper effectiveness,and the external damping should be increased deeply to provide the same non-dimensional modal damping when the inclined angle of cable decreases.The optimum damping coefficient of the non-idealized damper increases when the flexibility of the supporter increases.

关键词： Stay cable bridge deck vibration damper support flexibility modal damping

作者: Shuai Luo Quansheng Yan Hongjun Liu

作者单位: School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 5106 Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China

会议类型: 国际会议

会议名称: The International Conference on Civil Engineering, Architecture and Sustainable Infrastructure (2012土木建筑与可持续基础设施工程国际会议(ICCEASI2012))

会议地点: 郑州

会议语种:英文

页码: 714-718

在线出版日期: 2012-09-22（万方平台首次上网日期，不代表论文的发表时间）