Comparative Study on Buffeting Performance of Sutong Bridge Based on Design and Measured Spectrum

Wang, Hao; Hu, Ruomei; Xie, Jing; Tong, Teng; Li, Aiqun

doi:10.1061/(asce)be.1943-5592.0000394

Cited by 77 publications

(27 citation statements)

References 27 publications

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“…Buffeting performance is growing sensitive to external and internal factors with increasing span. Researchers have been working in external factors influence on buffeting performance, including topography [1], extreme value of typhoon [2], turbulence characteristics [3], turbulent spatial correlation coefficient [4], skew wind [5][6][7], design and measured power spectrum [8], non-stationary and stochastic excitation [2,[9][10][11]. There are also a multitude of researchers working in internal factors simultaneously, including multiple tuned mass dampers [12][13][14][15], mechanically driven flaps [16][17][18], mid-tower [19], catwalk [20], central buckle [21], and slotted deck [22].…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic admittance influence on buffeting performance of suspension bridge with streamlined deck

Yao¹,

Yang²,

Wu³

et al. 2019

J. vibroeng.

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Buffeting performance is growing sensitive to external and internal factors with increasing span of bridge. Aerodynamic admittance is an essential parameter in analyzing buffeting performance. In this paper, aerodynamic admittance in different conditions were conducted in wind tunnel tests by section model. Three kinds of aerodynamic admittance functions were used to calculating buffeting performance respectively. It is found that the aerodynamic admittance of streamlined deck is closely related to wind attack angle, and has a small difference at different wind speeds. However, the influence of aerodynamic admittance on buffeting performance is affected by the wind speed significantly. Under given conditions, adopting the Sears function as the admittance function of a similar streamlined box girder is reasonable, while the buffeting performance result obtained by adopting an admittance function as 1.0 is very conservative.

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Section: Introductionmentioning

confidence: 99%

Aerodynamic admittance influence on buffeting performance of suspension bridge with streamlined deck

Yao¹,

Yang²,

Wu³

et al. 2019

J. vibroeng.

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“…Data obtained from the SHMS can be used to evaluate the buffeting responses of bridges. Wang et al [77] compared the monitored buffeting responses of the Sutong Bridge (a cable-stayed bridge)with the predictions of the design. In addition, the strain and deformation of a structure are important and direct indices for safety evaluation.…”

Section: Response Analysis and Modeling And Safety Evaluation For Gimentioning

confidence: 99%

The state of the art in structural health monitoring of cable-stayed bridges

2015

J Civil Struct Health Monit

202

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Cable-stayed bridges are a type of long-span bridges that have been extensively constructed throughout the world. However, cable-stayed bridges suffer from a variety of performance deteriorations and natural disasters during their service time. Structural health monitoring, having emerged since the early 1990s, is regarded as an in situ field experimental technique to understand the behaviors and performance of real, full-scale bridges under real loadings and environmental conditions and to further ensure the safety, serviceability, durability, and sustainability of bridges. In this paper, the existing various monitoring technologies for cable-stayed bridges developed are overviewed. The design approaches of structural health monitoring systems for cable-stayed bridges are introduced. The data analysis, modeling, and safety evaluation of cable-stayed bridges based on structural health monitoring technology are addressed. The applications of structural health monitoring technology for cablestayed bridges are summarized. The design code for structural health monitoring systems is described for large highway bridges (including cable-stayed bridges) that are authorized by the Ministry of Transportation in China. Finally, this study discusses the challenges and future trends in structural health monitoring technologies for cable-stayed bridges, particularly for data-driven science and technology in structural health monitoring field.

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“…Full‐scale wind measurements provide a good basis to establish the numerical wind velocity fields, which could serve as more accurate inputs for the wind‐induced vibration reanalysis of a full‐scale tall building. Wang et al simulated the fluctuating wind velocity fields of the Sutong Bridge with the measured and design wind spectra, which were subsequently employed for the buffeting vibration analysis. With the full‐scale measurement data of a typhoon, the stochastic fluctuating wind fields of the typhoon could be generated efficiently by the spectral representation method .…”

Section: Introductionmentioning

confidence: 99%

Probabilistic assessment of vibration exceedance for a full‐scale tall building under typhoon conditions

Huang

et al. 2018

Structural Design Tall Build

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Summary Full‐scale wind and vibration measurements were conducted on a 270‐m tall building in Hong Kong. For the modal identification, a refined fast Bayesian fast Fourier transform method was newly developed by considering the exponential form of the modal wind force spectrum. Then, the modal parameters of the monitored building and their uncertainties were identified from the full‐scale vibration data under typhoon conditions by the proposed refined fast Bayesian fast Fourier transform method. For assessing the vibration exceedance of the monitored building under typhoon, a stochastic wind force field generation technique was developed by combining the spectral representation method and the computational fluid dynamics method. Wind‐induced vibration of the tall building under Typhoon Kammuri was reanalyzed with generated wind force time history data. Finally, a time‐domain Monte Carlo simulation framework was proposed by integrating the modal identification and the stochastic wind force field generation technique. In this framework, the Metropolis–Hastings sampling algorithm was adopted to estimate the vibration exceedance probability, which was defined through a limit state performance function associated with the ISO vibration assessment criteria.

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Comparative Study on Buffeting Performance of Sutong Bridge Based on Design and Measured Spectrum

Cited by 77 publications

References 27 publications

Aerodynamic admittance influence on buffeting performance of suspension bridge with streamlined deck

Aerodynamic admittance influence on buffeting performance of suspension bridge with streamlined deck

The state of the art in structural health monitoring of cable-stayed bridges

Probabilistic assessment of vibration exceedance for a full‐scale tall building under typhoon conditions

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