지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.41 No.2
- 발행연도
- 2021.10
- 수록면
- 293 - 315 (23page)
이용수
초록· 키워드
오류제보하기
At present, researchers mainly focused on the vortex-induced vibration (VIV) of the double-side I-shaped girder, while there are only a few literatures focused on the VIV of the bluff double-side box girder, especially the study on the synchronous pressure- and vibration- measured test for the bluff double-side box girder has not been reported. Therefore, in this study, the vibration-measured test, the Numerical Wind Tunnel Simulation, and the synchronous pressure- and vibration- measured test were conducted to study the VIV mechanism of the bluff double-side box girder. Firstly, a section model of the bluff double-side box girder was designed, and the vibration-measured test was conducted to study the influence of mass ratio, damping ratio, and aerodynamic countermeasures on the VIV of the bluff double-side box girder. Secondly, the Numerical Wind Tunnel Simulation was conducted to simulate the vorticity evolution of the bluff double-side box girder, which was used to help analyze the results of the synchronous pressure- and vibration- measured test. Finally, the synchronous pressure- and vibration- measured test was conducted to investigate the wind pressure distribution and aerodynamic forces on the surface of the double-side box girder, which was then used to study the VIV mechanism of the bluff double-side box girder by combining the simulated vorticity evolutions. So, when the VIV of the double-side box girder occurs, it is found that: there is a significant difference in the mean and fluctuating wind pressure between the upper and lower surfaces; moreover, at the leading and trailing edges, the aerodynamic forces contribute greatly to the VIV, the correlation between the aerodynamic forces and the vortex-induced aerodynamic forces is positive, and with the increase of this coefficient, it will lead to the more significant VIV.
목차
등록된 정보가 없습니다.
참고문헌 (40)
참고문헌 신청
Hua Bai / 2021 / Aerodynamic performance of Π-shaped composite deck cable-stayed bridges including VIV mitigation measures / Journal of Wind Engineering and Industrial Aerodynamics 208:104451
Jin Cheng / 2005 / Flutter reliability analysis of suspension bridges / Journal of Wind Engineering and Industrial Aerodynamics 93(10):757~775
S. Cinquemani / 2016 / A smart structure for wind tunnel investigation of a bridge deck’s vortex-induced torsional motion / Mechatronics 33:108~120
Abraham Sanchez Corriols / 2014 / Vortex-Induced Vibrations on Cross Sections in Tandem Arrangement / Structural Engineering International 24(1):20~26
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
Jin Cheng / 2005 / Flutter reliability analysis of suspension bridges / Journal of Wind Engineering and Industrial Aerodynamics 93(10):757~775
S. Cinquemani / 2016 / A smart structure for wind tunnel investigation of a bridge deck’s vortex-induced torsional motion / Mechatronics 33:108~120
Abraham Sanchez Corriols / 2014 / Vortex-Induced Vibrations on Cross Sections in Tandem Arrangement / Structural Engineering International 24(1):20~26
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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