Wind and Structures

  • 제12권3호
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  • Pages.205-217
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  • 2009
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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Aerodynamic Flutter Control for Typical Girder Sections of Long-Span Cable-Supported Bridges

  • Yang, Yongxin (State Key Lab for Disaster Reduction in Civil Engineering, Tongji University) ;
  • Ge, Yaojun (State Key Lab for Disaster Reduction in Civil Engineering, Tongji University)
  • 투고 : 2008.08.04
  • 심사 : 2009.02.16
  • 발행 : 2009.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

Aerodynamic flutter control for long-span cable-supported bridges was investigated based on three basic girder sections, i.e. streamlined box girder section, box girder section with cantilevered slabs and two-isolated-girder section. Totally four kinds of aerodynamic flutter control measures (adding fairings, central-slotting, adding central stabilizers and adjusting the position of inspection rail) were included in this research. Their flutter control effects on different basic girder sections were evaluated by sectional model or aeroelastic model wind tunnel tests. It is found that all basic girder sections can get aerodynamically more stabled with appropriate aerodynamic flutter control measures, while the control effects are influenced by the details of control measures and girder section configurations. The control effects of the combinations of these four kinds of aerodynamic flutter control measures, such as central-slotting plus central-stabilizer, were also investigated through sectional model wind tunnel tests, summarized and compared to the flutter control effect of single measure respectively.

키워드

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피인용 문헌

  1. Some important aspects of wind-resistant studies on long-span bridges vol.55, pp.12, 2012, https://doi.org/10.1007/s11431-012-5011-6
  2. Simplified formulations for flutter instability analysis of bridge deck vol.14, pp.4, 2011, https://doi.org/10.12989/was.2011.14.4.359
  3. Flutter performance optimization of steel truss girder with double-decks by wind tunnel tests 2017, https://doi.org/10.1177/1369433217734637
  4. Experimental studies on VIV performance and countermeasures for twin-box girder bridges with various slot width ratios vol.66, 2016, https://doi.org/10.1016/j.jfluidstructs.2016.08.010
  5. Flutter characteristics of twin-box girder bridges with vertical central stabilizers vol.133, 2017, https://doi.org/10.1016/j.engstruct.2016.12.009
  6. Simplified prediction of wind-induced response and stability limit of slender long-span suspension bridges, based on modified quasi-steady theory: A case study vol.98, pp.12, 2010, https://doi.org/10.1016/j.jweia.2010.06.009
  7. Passive Winglet Control of Flutter and Buffeting Responses of Suspension Bridges 2017, https://doi.org/10.1142/S0219455418500724
  8. Ground effects on wind-induced responses of a closed box girder vol.25, pp.4, 2009, https://doi.org/10.12989/was.2017.25.4.397
  9. Numerical studies of the suppression of vortex-induced vibrations of twin box girders by central grids vol.26, pp.5, 2009, https://doi.org/10.12989/was.2018.26.5.305
  10. Numerical study of wake and aerodynamic forces on a twin-box bridge deck with different gap ratios vol.30, pp.4, 2020, https://doi.org/10.12989/was.2020.30.4.367