Non-linear Analysis of Wind-Induced Cable-Deck Interaction

Christos T. Georgakis, John H. G. Macdonald, Colin A. Taylor

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

The natural frequencies of deck and local cable vibrations of cable-stayed bridges are in the same range, leading to the possibility of dynamic cable-deck interaction, while the cables themselves exhibit significant non-linearities. Bridge analyses generally use simple cable models and do not address these issues. Previous studies of cable-deck interaction have often overlooked important aspects of the behaviour including the influence of the cable on the deck, realistic amplitudes of deck displacements and the origins of damping, including aerodynamic damping. In this paper, the cable-deck interaction is modelled more fully by considering the response of a simplified non-linear cable-deck system to applied dynamic forces representative of wind buffeting. The model parameters are based on values for a typical cable-stayed bridge to assess the significance of the interaction effects, non-linearities and aerodynamic damping for practical cases.
Keyword: cable-stayed bridges; cable dynamics; cable-deck interaction; aerodynamic damping; geometric non-linearities; wind loading; parametric excitation
Original languageEnglish
JournalIABSE Reports
Issue number84
Pages (from-to)194-195
ISSN1025-9104
Publication statusPublished - 2001
Externally publishedYes
EventIABSE Conference on Cable-Supported Bridges - Seoul, South Korea
Duration: 1 Jan 2001 → …

Conference

ConferenceIABSE Conference on Cable-Supported Bridges
CitySeoul, South Korea
Period01/01/2001 → …

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