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Impact of Cable-deck Interaction on ...

Koralalage, Krishanth.

Impact of Cable-deck Interaction on the Efficiency of External Damper in Controlling Stay Cable Vibration on Cable-Stayed Bridges.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Impact of Cable-deck Interaction on the Efficiency of External Damper in Controlling Stay Cable Vibration on Cable-Stayed Bridges.
作者:	Koralalage, Krishanth.
面頁冊數:	124 p.
附註:	Source: Masters Abstracts International, Volume: 50-01, page: 0527.
附註:	Adviser: Shaohong Cheng.
Contained By:	Masters Abstracts International50-01.
標題:	Engineering, Civil.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR61749
ISBN:	9780494617496

Impact of Cable-deck Interaction on the Efficiency of External Damper in Controlling Stay Cable Vibration on Cable-Stayed Bridges.
Koralalage, Krishanth.

Impact of Cable-deck Interaction on the Efficiency of External Damper in Controlling Stay Cable Vibration on Cable-Stayed Bridges. - 124 p.

Source: Masters Abstracts International, Volume: 50-01, page: 0527.

Thesis (M.A.Sc.)--University of Windsor (Canada), 2011.

External dampers are widely used to control vibrations of stay cables on cable-stayed bridges. In general, the estimation of the damping of a stay cable in a cable-damper system is done based on the assumption that the bridge stay cable has fixed supports at both ends and the damper has a fixed support on the deck. But long-span bridges experience frequent bridge-girder vibrations under dynamic loadings due to long span length, light weight and flexible nature. Therefore, the assumptions of fixed support for the cable and damper is no longer valid in the case of long-span bridges.

ISBN: 9780494617496Subjects--Topical Terms:

212394
Engineering, Civil.

Impact of Cable-deck Interaction on the Efficiency of External Damper in Controlling Stay Cable Vibration on Cable-Stayed Bridges.
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500 $a Source: Masters Abstracts International, Volume: 50-01, page: 0527.
500 $a Adviser: Shaohong Cheng.
502 $a Thesis (M.A.Sc.)--University of Windsor (Canada), 2011.
520 $a External dampers are widely used to control vibrations of stay cables on cable-stayed bridges. In general, the estimation of the damping of a stay cable in a cable-damper system is done based on the assumption that the bridge stay cable has fixed supports at both ends and the damper has a fixed support on the deck. But long-span bridges experience frequent bridge-girder vibrations under dynamic loadings due to long span length, light weight and flexible nature. Therefore, the assumptions of fixed support for the cable and damper is no longer valid in the case of long-span bridges.
520 $a An analytical model has been proposed in the current study to determine the damping property of a bridge stay cable when attached with a damper, by considering the effect of bridge-deck vibration on the cable and the damper. The static and the dynamic behaviour of the cable-damper-deck system have been simulated in the model. The validity of the model was verified by assuming a very rigid equivalent beam and was compared with the results obtained from a cable fixed end case. A Matlab program was developed to perform matrix calculations and iterations associated with the model. Associated dynamic analysis was carried out using the finite element model in ABAQUS 6.9.
520 $a Case studies were conducted to investigate the effect of cable-deck interaction on the damper efficiency for cable-stayed bridges with different span lengths. The range of main span length that requires the consideration of bridge-deck vibration for the estimation of damper efficiency was proposed.
590 $a School code: 0115.
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790 1 0 $a Bollisetti, Tirupati $e committee member
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