A new methodology for analysis of equivalent static wind loads on super-large cooling towers

Ke, Shitang; Ge, Yaojun; Zhao, Lin; Tamura, Yukio

doi:10.1016/j.jweia.2012.08.001

Cited by 41 publications

(13 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Limited to research subject of this article, the detail design and produce process of aero-elastic model can be found in the references (Ke et al, 2012(Ke et al, , 2013. The aero-elastic model for simultaneous pressure and vibration measurement is shown in Fig.…”

Section: Design Methods Of the Aero-elastic Modelmentioning

confidence: 99%

“…1, fundamental frequency of the structure was 0.658 Hz, and the frequency was maintained at below 1.0 Hz, even for modes as high as 10. More dynamic characteristicses of this super-large cooling tower can be found in the literature (Ke et al, 2012(Ke et al, , 2013.…”

Section: Description Of the Representative Cooling Towermentioning

confidence: 99%

“…The three component algorithm (LRCþ IWL), in which the background item and the resonance item were separately calculated, ignored the cross items between background and resonance (Holmes, 1992;Zhou and Kareem, 2000). Therefore, a consistent coupled method (CCM) to calculate wind-induced responses and equivalent static wind loads of large cooling towers was proposed by Ke et al (2012). The CCM could comprehensively consider background component, resonance component and the cross terms between them, which has been successfully applied to calculate wind-induced responses of many large cooling towers (heightZ165 m).…”

Section: Related Parameters Reference Valuesmentioning

confidence: 99%

“…In addition, based on the pressure measurement of rigid body and random vibration theory, Busch et al (2002) calculated wind-induced responses of large cooling towers, and the influences of damping ratio and other surrounding interference were also analyzed. Based on Load-response theories, equivalent static wind loads of large cooling towers were proposed by Ke et al (2012). As a result of aforementioned research studies, windresistant design of large cooling towers has been optimized, and a large number of profits was achieved.…”

Section: Introductionmentioning

confidence: 99%

“…Herein, based on the previous researches about wind tunnel tests by Ke et al (2012Ke et al ( , 2013, the effects of self-excited force on distribution characteristics of external mean and fluctuating wind pressure were further analyzed. The characteristics of the spectral density of displacement responses were also investigated.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The influence of self-excited forces on wind loads and wind effects for super-large cooling towers

2014

Journal of Wind Engineering and Industrial Aerodynamics

Self Cite

View full text Add to dashboard Cite

Section: Design Methods Of the Aero-elastic Modelmentioning

confidence: 99%

Section: Description Of the Representative Cooling Towermentioning

confidence: 99%

Section: Related Parameters Reference Valuesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The influence of self-excited forces on wind loads and wind effects for super-large cooling towers

2014

Journal of Wind Engineering and Industrial Aerodynamics

Self Cite

View full text Add to dashboard Cite

Non‐Gaussian characteristics and extreme distribution of fluctuating wind pressures on large cylindrical–conical steel cooling towers

Wang

2017

Structural Design Tall Build

View full text Add to dashboard Cite

Large cylindrical-conical steel cooling tower (SCT) represents a new configuration of cooling tower, and its wind load distribution pattern and forming mechanism are very different from those of the traditional hyperbolic cooling towers. Large eddy simulation was used for the numerical simulation on a superlarge cylindrical-conical SCT that exceeds the specification limit, which is also the highest (189 m) SCT under construction in Asia. The surface flow field and time history of 3-D aerodynamic force were obtained for the cylindrical and conical parts, respectively. Comparison with the measurements of other large cooling towers and the results of wind tunnel test confirmed the validity of the numerical simulation. Then, based on the probability density distribution and spatial correlation of representative measuring points, regions of non-Gaussian distribution were identified. The forming mechanism of non-Gaussian wind pressure distribution was revealed from the perspective of the correlation of non-Gaussian distribution versus flow separation and eddy motion. The criteria for classifying the region of non-Gaussian distribution for the cylindrical and conical parts were analyzed, respectively. Research shows that the wind pressures in the windward regions of conical and cylindrical parts obey Gaussian distribution; however, the wind pressures from the region of extreme negative pressure to the region of flow separation are largely non-Gaussian and the wind pressures of the conical part are generally non-Gaussian in the leeward region. Finally, the three algorithms for calculating the extreme values of wind pressure were used, namely, peak factor method, improved peak factor method, and Sadek-Simiu method.The distribution patterns of peak factors and extreme values of wind pressure in SCT towers were analyzed comparatively. The 2-D formulae for fitting the extreme values of wind values for the cylindrical and conical parts were derived by nonlinear least square method. Moreover, strategy for value determination was also presented. The present research aimed to strengthen the understanding of the fluctuating wind pressure distribution and its forming mechanism for large cylindrical-conical SCT towers.

show abstract

Investigation on Excitation Equivalence Technique for Thin-Walled Panel Based on Pseudo-excitation Method

Zhou¹,

Yan²,

Guo³

et al. 2022

Int. J. Aeronaut. Space Sci.

View full text Add to dashboard Cite

A new methodology for analysis of equivalent static wind loads on super-large cooling towers

Cited by 41 publications

References 12 publications

The influence of self-excited forces on wind loads and wind effects for super-large cooling towers

The influence of self-excited forces on wind loads and wind effects for super-large cooling towers

Non‐Gaussian characteristics and extreme distribution of fluctuating wind pressures on large cylindrical–conical steel cooling towers

Investigation on Excitation Equivalence Technique for Thin-Walled Panel Based on Pseudo-excitation Method

Contact Info

Product

Resources

About