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http://dx.doi.org/10.11112/jksmi.2013.17.2.054

Vibration Reduction Effects of Stay Cable Due to Friction Damper  

Kim, Hyung Ku (서울시립대학교 토목공학과)
Yhim, Sung Soon (서울시립대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.17, no.2, 2013 , pp. 54-61 More about this Journal
Abstract
Stay cable has a strong axial rigidity due to large initial tension and, on the other hand, it has a weak laterally flexural rigidity. Wind loads or traffic loads cause the cables to vibrate significantly and affect the mechanical properties and the performance of cables of cable-stayed bridge (CSB). Therefore, the development of vibration reduction design is an urgent task to control the vibration vulnerable long-span bridges. As Friction damper (FD) shows to reduce the amplitude and duration time of vibration of cable of CSB from measured date in field test, friction damper can be considered that it is effective device significantly to reduce the amplitude and duration time in vibration of cable of CSB under traffic load, wind load and so on. Vibration characteristics of cable can change according to manufacturing method and type of established form. Nevertheless, analysis method in this study can present the design of friction damper for vibration reduction of cable of cable-stayed bridge from now on.
Keywords
Cable-stayed bridge; Stay cable; Friction damper; Damping reduction effect; Damping ratio; Cable vibration;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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