Wind turbulence characteristics study at the Stonecutters Bridge site: Part I—Mean wind and turbulence intensities

Hui, Michael C. H.; Larsen, Allan; Huang, Xiang

doi:10.1016/j.jweia.2008.11.002

Cited by 99 publications

(43 citation statements)

References 11 publications

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“…For a wind direction of 200°, the turbulence intensity ratios Iv/Iu and Iw/Iu, presented in Table 5, are 0.892 and 0.442, respectively. Although turbulence conditions are higher, these ratios are comparable to the ratios presented in [10,11] for flat surrounding conditions, confirming that for this direction the effect of the ravine is not significantly felt. When the wind direction tends to 270°, the effect of the ravine topography and wall roughness on wind turbulence components tend to increase, reaching for this particular direction of 270° almost equal turbulence intensities in the three wind components (see Table 5).…”

Section: Turbulence Intensitysupporting

confidence: 76%

Characterisation of the Aerodynamic Behaviour of the Grande Ravine Viaduct From Prototype Monitoring

Bastos¹,

Caetano²,

Cunha³

et al. 2014

Proceedings of the 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Section: Turbulence Intensitysupporting

confidence: 76%

Characterisation of the Aerodynamic Behaviour of the Grande Ravine Viaduct From Prototype Monitoring

Bastos¹,

Caetano²,

Cunha³

et al. 2014

Proceedings of the 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…This is not the case of field measurements, extreme situation of which would be the case of typhoon winds [11,12]. In transient flows, besides the variable mean values, additional phenomena may appear, as the flow velocity changes with time.…”

Section: Introductionmentioning

confidence: 99%

Wavelet analysis of unsteady flows: Application on the determination of the Strouhal number of the transient wake behind a single cylinder

Indrusiak

Möller

2011

Experimental Thermal and Fluid Science

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a b s t r a c tThis paper presents experimental results of the accelerating and decelerating flow in the wake of a cylinder obtained by means of hot wire anemometry measurements in a wind tunnel with high blockage ratio. The analysis was done in Fourier and wavelet spaces. The Strouhal number for Reynolds numbers up to 3 Â 10 4 was studied in a transient flow and compared with the results obtained from steady flows at several velocities uniformly distributed from Re = 1.7 Â 10 3 to 3 Â 10 4 . Results show that the wavelet analysis is a valuable tool to deal with both transient and stationary random phenomena and that is able to capture the characteristics of the transient flow as well as the Fourier analysis can do with the steady state acquisitions.

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“…Hui [1,2] did a detailed analysis of the wind conditions near the Stonecutter Bridge, which is subjected to both a sea and mountain wind, by using a wind mast. Macdonald [3] studied the response to wind and traffic load of the Clifton Bridge, which is a relatively shortspan suspension bridge crossing a narrow gorge.…”

Section: Introductionmentioning

confidence: 99%

Full scale monitoring of wind and traffic induced response of a suspension bridge

Cheynet

Jakobsen

Snæbjörnsson

2015

MATEC Web of Conferences

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Abstract. This paper presents a full-scale analysis of wind and traffic-induced vibrations of a long-span suspension bridge in complex terrain. Several wind and acceleration sensors have been installed along the main span on Lysefjord Bridge in Norway. In the present study, three days of continuous records are analysed. Traffic-induced vibrations are dominant at low and moderated wind speed, with non-negligible effects on the overall bridge response for heavy vehicles only. Traffic and wind-induced vibrations are compared in terms of root mean square of the acceleration response, and three simples approaches are proposed to isolate records dominated by wind-induced vibration. The first one relies on the separation of nocturnal and diurnal samples. The second one is based on the evaluation of the time-varying root mean square of the acceleration response. The last one evaluates the relative importance of the high frequency domain of the acceleration bridge response. It appears that traffic-induced vibrations may have to be taken into account for the buffeting analysis of longspan bridge under moderated wind.

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Wind turbulence characteristics study at the Stonecutters Bridge site: Part I—Mean wind and turbulence intensities

Cited by 99 publications

References 11 publications

Characterisation of the Aerodynamic Behaviour of the Grande Ravine Viaduct From Prototype Monitoring

Characterisation of the Aerodynamic Behaviour of the Grande Ravine Viaduct From Prototype Monitoring

Wavelet analysis of unsteady flows: Application on the determination of the Strouhal number of the transient wake behind a single cylinder

Full scale monitoring of wind and traffic induced response of a suspension bridge

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