Wind and Structures

  • 제14권4호
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  • Pages.359-381
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  • 2011
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Simplified formulations for flutter instability analysis of bridge deck

  • Vu, Tan-Van (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Kim, Young-Min (Institute of Construction Technology, DAEWOO E&C Co., Ltd.) ;
  • Han, Tong-Seok (School of Civil and Environmental Engineering, Yonsei University) ;
  • Lee, Hak-Eun (School of Civil, Environmental and Architectural Engineering, Korea University)
  • 투고 : 2010.05.11
  • 심사 : 2011.01.08
  • 발행 : 2011.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

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.

키워드

참고문헌

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피인용 문헌

  1. Prediction of bridge flutter under a crosswind flow vol.17, pp.3, 2013, https://doi.org/10.12989/was.2013.17.3.275
  2. System Decoupling Approach for 3-DOF Bridge Flutter Analysis vol.141, pp.7, 2015, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001129
  3. Practical Diagrammatical Technique for 3-DOF Bridge Flutter Analysis vol.19, pp.12, 2014, https://doi.org/10.1061/(ASCE)BE.1943-5592.0000626
  4. Coupled flutter analysis of long-span bridges using full set of flutter derivatives vol.20, pp.4, 2016, https://doi.org/10.1007/s12205-015-0271-x
  5. Full-order and single-parameter searching analysis of coupled flutter instability for long-span bridges vol.44, pp.3, 2017, https://doi.org/10.1139/cjce-2016-0246
  6. A Simplified Evaluation in Critical Frequency and Wind Speed to Bridge Deck Flutter vol.14, pp.None, 2011, https://doi.org/10.1016/j.proeng.2011.07.224