Investigation of dynamic cable-deck interaction in a physical model of a cable-stayed bridge. Part I: Modal analysis

被引：0

作者：

Caetano, E. ^{[1
]}

Cunha, A. ^{[1
]}

Taylor, C.A. ^{[2
]}

机构：

[1] Faculty of Engineering, University of Porto, Rua dos Bragas, 4099 Porto Codex, Portugal

[2] Earthquake Eng. Research Centre, University of Bristol, Queen's Building, University Walk, Bristol BS8 1TR, United Kingdom

来源：

Earthquake Engineering and Structural Dynamics | 2000年 / 29卷 / 04期

关键词：

Bridge cables - Bridge decks - Cable stayed bridges - Dynamic response - Electrodynamics - Materials testing - Modal analysis - Models - Stiffness;

D O I：

10.1002/(SICI)1096-9845(200004)29:43.0.CO;2-1

中图分类号：

学科分类号：

摘要：

A description of an experimental investigation involving the study of the dynamic interaction between the cables and the deck/towers system in cable-stayed bridges is presented. The work was carried out on a physical model of a cable-stayed bridge (the Jindo Bridge, in South Korea), whose characteristics of stiffness and mass have been conveniently scaled. Standard modal analysis tests were performed using both an electrodynamic shaker and a shaking table, leading to the creation of a high-quality database, characterizing the dynamic behaviour of the bridge. The study shows the existence of a clear dynamic interaction between the cables and the deck/towers system, associated with the appearance of several groups of mode shapes, at closely spaced frequencies, involving different cable movements, but similar configurations of the girder and towers.

引用

页码：481 / 498

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