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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.34 No.5
- 발행연도
- 2020.1
- 수록면
- 699 - 713 (15page)
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초록· 키워드
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The aerodynamic performance of long-span cable-stayed bridges is much dependent on its geometrical configuration and countermeasure strategies. In present study, the aerodynamic performance of three composite cable-stayed bridges with different tower configurations and passive aerodynamic countermeasure strategies is systematically investigated by conducting a series of wind tunnel tests in conjunction with theoretical analysis. The structural characteristics of three composite bridges were firstly introduced, and then their stationary aerodynamic performance and wind-vibration performance (i.e., flutter performance, VIV performance and buffeting responses) were analyzed, respectively. The results show that the bridge with three symmetric towers (i.e., Bridge I) has the lowest natural frequencies among the three bridges, while the bridge with two symmetric towers (i.e., Bridge II) has the highest natural frequencies. Furthermore, the Bridge II has better stationary aerodynamic performance compared to two other bridges due to its relatively large drag force and lift moment coefficients, and the improvement in stationary aerodynamic performance resulting from the application of different countermeasures is limited. In contrast, it demonstrates that the application of both downward vertical central stabilizers (UDVCS) and horizontal guide plates (HGP) could potentially significantly improve the flutter and vortex-induced vibration (VIV) performance of the bridge with two asymmetric towers (i.e., Bridge III), while the combination of vertical interquartile stabilizers (VIS) and airflowdepressing boards (ADB) has the capacity of improving the VIV performance of Bridge II.
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등록된 정보가 없습니다.
참고문헌 (33)
참고문헌 신청
Barbaros Atmaca / 2012 / Construction stage analysis of three-dimensional cable-stayed bridges / Steel and Composite Structures, An International Journal 12(5):413~426
Barbaros Atmaca / 2014 / Nonlinear dynamic analysis of base isolated cable-stayed bridge under earthquake excitations / Soil Dynamics and Earthquake Engineering 66:314~318
Bin Cheng / 2015 / Strengthening of perforated walls in cable-stayed bridge pylons with double cable planes / Steel and Composite Structures, An International Journal 18(4):811~831
Collings, D. / 2013 / Steel-concrete composite bridges: Designing with Eurocodes / Thomas Telford Ltd, ICE Publishing
Y. Daito / 2002 / Torsional flutter mechanism of two-edge girders for long-span cable-stayed bridge / Journal of Wind Engineering and Industrial Aerodynamics 90(12-15):2127~2141
Barbaros Atmaca / 2014 / Nonlinear dynamic analysis of base isolated cable-stayed bridge under earthquake excitations / Soil Dynamics and Earthquake Engineering 66:314~318
Bin Cheng / 2015 / Strengthening of perforated walls in cable-stayed bridge pylons with double cable planes / Steel and Composite Structures, An International Journal 18(4):811~831
Collings, D. / 2013 / Steel-concrete composite bridges: Designing with Eurocodes / Thomas Telford Ltd, ICE Publishing
Y. Daito / 2002 / Torsional flutter mechanism of two-edge girders for long-span cable-stayed bridge / Journal of Wind Engineering and Industrial Aerodynamics 90(12-15):2127~2141
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