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[期刊论文]

Vortex-Induced Vibration Control for Twin Box Girder Bridges with Veritical Central Stabilzers

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author:

Cheng, Yi (Cheng, Yi.) [1] | Zhou, Rui (Zhou, Rui.) [2] | Yang, Yongxin (Yang, Yongxin.) [3] | Unfold

Indexed by:

EI PKU CSCD

Abstract:

Taking a twin-box girder bridge with a slot width ratio of 20% as an example, the control effects of upward vertical central stabilizers (UVCS) and downward vertical central stabilizers (DVCS) on the bridge were investigated using CFD simulation and a series of wind tunnel tests, respectively. The results show that the amplitudes of heaving vortex-induced vibration(VIV) responses first increase and then decrease with the height increase of vertical central stabilizers, in which the amplitudes of heaving VIV responses for the UVCS with 0.4h/H and the DVCS with 0.2h/H were the smallest. The amplitudes of torsional VIV responses were enhanced by installing the UVCS while the DVCS are helpful to decrease the torsional responses. In addition, the results of the CFD numerical simulation show that VCS change the motion mode of vortex structures in the slotting and the pressure zones on the upper and bottom surface of the leeward side girder. It is found that the optimal control effective on the VIV performance is the DVCS with 0.2h/H, whereas the UVCS with 0.8h/H has the worst effective of all cases. © 2019, Editorial Department of Journal of Tongji University. All right reserved.

Keyword:

Box girder bridges Computational fluid dynamics Flow structure Fluid structure interaction Steel bridges Vibrations (mechanical) Vortex flow Wind stress Wind tunnels

Community:

  • [ 1 ] [Cheng, Yi]Yanggo University, Fuzhou University, Fuzhou; 350015, China
  • [ 2 ] [Zhou, Rui]Institute of Urban Smart Transportation and Safety Maintenance, Shenzheng University, Shenzhen; 518060, China
  • [ 3 ] [Yang, Yongxin]State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai; 200092, China
  • [ 4 ] [Ge, Yaojun]State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai; 200092, China

Reprint 's Address:

  • [zhou, rui]institute of urban smart transportation and safety maintenance, shenzheng university, shenzhen; 518060, china

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Source :

Journal of Tongji University

ISSN: 0253-374X

Year: 2019

Issue: 5

Volume: 47

Page: 617-626

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 9

30 Days PV: 1

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