Study on mechanism analysis of rain-wind-induced vibration and resistance measures

Author

Hou, Ning ; Wang, Xiushan

Author_Institution

Chang´´an Univ., Xi´´an, China

fYear

2011

fDate

26-28 July 2011

Firstpage

1239

Lastpage

1243

Abstract

Stay cable is one of the main components of cable stayed bridge to bear loads. Due to its large flexibility, small quality and small damping, various of harmful vibrations could happen easily under the external excitations. Rain-wind-induced vibration is the strongest form of vibrations. Through the establishment of Dof theoretical model of rain-wind-induced vibration and the analysis of vibration frequency and aerodynamic damping of cable, the occurrence mechanism of rain-wind-induced vibration is revealed. The vibration control measures for this kind of vibration are also established to support the ensurance of bridge operation.

Keywords

bridges (structures); cables (mechanical); damping; rain; structural engineering; vibration control; wind; DOF theoretical model; aerodynamic damping; cable stayed bridge; external excitations; flexibility; rain-induced vibration; resistance measure; vibration control; vibration frequency; wind-induced vibration; Aerodynamics; Bridges; Damping; Electrical resistance measurement; Shock absorbers; Vibrations; Wind speed; aerodynamic damping; rain-wind-induced vibration; resistance measure; stay cable; two degrees of freedom theory; vibration frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia Technology (ICMT), 2011 International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-61284-771-9

Type

conf

DOI

10.1109/ICMT.2011.6003174

Filename

6003174