Interference effect on vortex-induced vibration in a parallel twin cable-stayed bridge

Seo, Ju-Won; Kim, Ho-Kyung; Park, Jin; Kim, Kwon-Taek; Kim, Gi-Nam

doi:10.1016/j.jweia.2013.01.014

Cited by 76 publications

(10 citation statements)

References 8 publications

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“…To control the adverse VIV of bridges, many control schemes have been proposed. Among these, the tuned mass damper (TMD) has been widely adopted, for example, in the Trans‐Tokyo Bay Bridge, the Rio–Niteroi Bridge, the Kessock Cable‐Stayed Bridge, the Volvograd Bridge, and the Jindo Bridge . The main advantage of this scheme is that it can be installed inside the main deck and will not influence the esthetics of the bridge.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of inerter‐based dampers for vortex‐induced vibration control of long‐span bridges: A comparative study

et al. 2020

Struct Control Health Monit

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Summary Inerter‐based dampers (IBDs) have been proposed to enhance the efficiency of conventional tuned mass dampers (TMDs) in controlling wind‐induced vibration of civil structures recently. In this paper, four different IBDs, with each featuring a specific combination of dashpot–spring elements in series or in parallel with the inerter device, are applied to control the vortex‐induced vibration (VIV) of long‐span bridges. The governing equations of the bridge–IBD system under the effect of VIV are established, and the strategy to optimize the IBD parameters is proposed. The performances of different IBDs in terms of mitigating the VIV response of the deck, the stroke of mass block, the static deformation of spring due to gravity, the reaction force of IBDs on the bridge deck, and the robustness of the system (the control efficiency against the deviation of design parameters from their optimal values) are systematically evaluated and compared. Through this comparative study, the superiorities of IBDs to conventional TMDs in bridge VIV control are illustrated, and two feasible layouts of IBDs that are suitable for bridge VIV control are suggested. On the basis of these results, the guideline for VIV‐resistance design of long‐span bridges with the help of IBDs is also proposed.

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Section: Introductionmentioning

confidence: 99%

Performance evaluation of inerter‐based dampers for vortex‐induced vibration control of long‐span bridges: A comparative study

et al. 2020

Struct Control Health Monit

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“…The flow-induced motion (FIM) phenomenon [1] widely exists in the civil engineering field, and it can lead to the failure of oscillating structures such as solar receiver tubes [2][3][4], long-span bridges [5], parallel twin bridges [6], offshore risers [7], and aircraft [8]. Many early studies have devoted great efforts to the suppression [9,10] of FIM.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Flow-Induced Motion and Energy Conversion of a T-Section Prism

Shao

Lian

et al. 2018

Energies

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Flow-induced motion (FIM) performs well in energy conversion but has been barely investigated, particularly for prisms with sharp sections. Previous studies have proven that T-section prisms that undergo galloping branches with high amplitude are beneficial to energy conversions. The FIM experimental setup designed by Tianjin University (TJU) was improved to conduct a series of FIM responses and energy conversion tests on a T-section prism. Experimental results are presented and discussed, to reveal the complete FIM responses and power generation characteristics of the T-section prism under different load resistances and section aspect ratios. The main findings are summarized as follows. (1) Hard galloping (HG), soft galloping (SG), and critical galloping (CG) can be observed by varying load resistances. When the load resistances are low, HG occurs; otherwise, SG occurs. (2) In the galloping branch, the highest amplitude and the most stable oscillation cause high-quality electrical energy production by the generator. Therefore, the galloping branch is the best branch for harvesting energy. (3) In the galloping branch, as the load resistances decrease, the active power continually increases until the prism is suppressed from galloping to a vortex-induced vibration (VIV) lower branch with a maximum active power Pharn of 21.23 W and a maximum ηout of 20.2%. (4) Different section aspect ratios (α) can significantly influence the FIM responses and energy conversions of the T-section prism. For small aspect ratios, galloping is hardly observed in the complete responses, but the power generation efficiency (ηout,0.8 = 27.44%) becomes larger in the galloping branch.

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“…3 However, a low level of structural damping was also determined to have contributed to the VIVs. 4,5 The main cause of the VIVs in the Yi Sun-Shin Bridge was found to be related to a lack of input concerning the importance of aerodynamic shapes with respect to the bridge deck. At the time the VIVs occurred,…”

Section: Introductionmentioning

confidence: 99%

Enhanced Damping Estimation for Cable-Stayed Bridges Based on Operational Monitoring Data

Kim

Hwang

2018

Structural Engineering International

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This study proposes an enhanced damping estimation procedure for flexible cable-supported bridges based on operational modal analysis (OMA). The OMA approach combines the natural excitation technique (NExT) with an eigensystem realization algorithm (ERA). An amplitude modulating (AM) function is introduced to stationarize the vehicle-induced responses. This study proposes guidelines for the selection of parameters for the NExT-ERA algorithm and AM-based stationarization. The proposed damping estimation procedure and parameter selection guidelines were applied to the data gathered from measuring an in-service cable-stayed bridge over a three-day period. The correlations between the identified damping ratios and environmental factors such as vibration level, temperature and wind velocity were investigated. The effect of aerodynamic damping during OMA is also discussed. The examined data identifies the amplitude-dependency of the damping ratios.

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Interference effect on vortex-induced vibration in a parallel twin cable-stayed bridge

Cited by 76 publications

References 8 publications

Performance evaluation of inerter‐based dampers for vortex‐induced vibration control of long‐span bridges: A comparative study

Performance evaluation of inerter‐based dampers for vortex‐induced vibration control of long‐span bridges: A comparative study

Experimental Investigation of Flow-Induced Motion and Energy Conversion of a T-Section Prism

Enhanced Damping Estimation for Cable-Stayed Bridges Based on Operational Monitoring Data

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