Simplified formulations for flutter instability analysis of bridge deck
- Authors
- Vu, Tan-Van; Kim, Young-Min; Han, Tong-Seok; Lee, Hak-Eun
- Issue Date
- 7월-2011
- Publisher
- TECHNO-PRESS
- Keywords
- bridges; eigenvalue; flutter; flutter derivatives; instability; simplified formulations
- Citation
- WIND AND STRUCTURES, v.14, no.4, pp.359 - 379
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- WIND AND STRUCTURES
- Volume
- 14
- Number
- 4
- Start Page
- 359
- End Page
- 379
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/112062
- ISSN
- 1226-6116
- Abstract
- This paper deals with the flutter instability problem of flexible bridge decks in the framework of bimodal-coupled aeroelastic bridge system analysis. Based on the analysis of coefficients of the polynomials deduced from the singularity conditions of an integral wind-structure impedance matrix, a set of simplified formulations for calculating the critical wind velocity and coupled frequency are presented. Several case studies are discussed and comparisons with available approximated approaches are made and presented, along with a conventional complex eigenvalue analysis and numerical results. From the results, it is found that the formulas that are presented in this study are applicable to a variety of bridge cross sections that are not only prone to coupled-mode but also to single-mode-dominated flutter.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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