Across-wind responses of an aeroelastic tapered tall building

Kim, Young-Moon; You, Ki-Pyo; Ko, Nag-Ho

doi:10.1016/j.jweia.2008.02.038

Cited by 85 publications

(24 citation statements)

References 12 publications

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“…As buildings are getting taller and more flexible, wind load becomes one of the main controlling loads in the design of these buildings particularly in the strong typhoon area. Aerodynamic measure is usually used to reduce wind‐induced loads and responses of the buildings, especially for the super tall buildings beyond the height of 500 m . Previous wind disaster surveys reported in the literature indicate that although the structural collapse of tall buildings due to wind loading is rarely reported, the building envelopes, especially the glass curtain, are often damaged under wind loading.…”

Section: Introductionmentioning

confidence: 99%

An experimental study on the wind pressure distribution of tapered super high‐rise buildings

Deng

Xie

et al. 2018

Structural Design Tall Build

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Summary Studies on the effect of different shape strategies on wind‐induced responses of super tall buildings have been extensive. However, little systematic research on the influence of aerodynamic shapes on wind pressure distributions of super high‐rise building having a height more than 500 m is reported in the literature. In this paper, a series of wind tunnel tests are conducted on models simulating tapered buildings taller than 500 m with an aspect ratio of 9:1 by applying synchronous pressure measurement technology to investigate the influence of different shape strategies on the wind force coefficients of the cross section (Cs) and on the peak negative pressure distributions on surfaces. The shape strategies considered include tapering of the cross section of a building along its height, chamfered modification, and opening ventilation slots. It is found that the wind force coefficient Cs increase with an increase of the tapering ratio. It is shown that chamfered modification can effectively reduce most of the wind force coefficients Cs to less than 0.9. As for peak wind pressures, a zone having a higher negative pressure is found to locate at the bottom of the side faces of the model. With an increase of the tapering ratio, the peak negative pressure of side faces of the model slightly decreases. Chamfered modification can significantly increase the peak negative pressure at the chamfered location. Furthermore, it is demonstrated that opening ventilation slots had less effect on Cs, but the peak negative pressure can significantly increase at the area of opening ventilation slots and adjacent areas.

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Section: Introductionmentioning

confidence: 99%

An experimental study on the wind pressure distribution of tapered super high‐rise buildings

Deng

Xie

et al. 2018

Structural Design Tall Build

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“…The fact that rather complicated sectional shapes can reduce wind loads, which are an important issue in tall-building wind-resistant design, has also contributed to the current trend. The effectiveness of aerodynamic modification to reduce wind loads has been widely reported, and aerodynamic modifications thought to be effective include those to sectional shape (horizontally) such as polygon or Y-type (Hayashida and Iwasa, 1990;Hayashida et al, 1992) and corners (Shiraishi et al, 1986;Kwok et al, 1988;Miyashita et al, 1993;Amano, 1995;Kawai, 1998), building shape (vertically) such as taper (Cooper et al, 1997;Kim and You, 2002;Kim et al, 2008;Kim and Kanda, 2010a;2010b) and setback (Kim and Kanda, 2010a,b), as well as introduction of openings (Dutton andIsyumou, 1990, Miyashita et al, 1993). However, most of the above papers have focused on the effect of one aerodynamic modification that changes systematically.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of aerodynamic forces and wind pressures acting on tall buildings with various unconventional configurations

Tanaka

Tamura

Ohtake

et al. 2012

Journal of Wind Engineering and Industrial Aerodynamics

249

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“…Kim and Kanda (), Kim et al . () and You et al . () analyzed the effectiveness of taper elevation and step retraction elevation through a wind tunnel test.…”

Section: Introductionmentioning

confidence: 88%

Effects of grid curtains on the wind loads of a high-rise building

Quan

Kuang

et al. 2015

Struct. Design Tall Spec. Build.

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Summary The effects of grid curtains on the local and overall wind loads of a high‐rise building are investigated in detail according to a series of wind pressure and wind force tests on rigid model in a wind tunnel. The effects of grid curtains on the mean and fluctuating wind pressures on windward and sideward walls when the wind direction is parallel to the geometrical axes are investigated, along with the effects of the most unfavorable wind pressures for all wind directions. Furthermore, the effects of grid curtains on the mean and fluctuating aerodynamic forces on the entire building are also analyzed for various wind directions, along with the effects of grid curtains on the aerodynamic force spectra when the wind direction is parallel to the geometric axes. The test results indicate that grid curtains affect the mean and fluctuating windward pressure slightly but greatly influence the large sideward negative pressures. Grid curtains increase the mean and fluctuating windward aerodynamic forces and reduce the fluctuating aerodynamic torsions. According to the aerodynamic force spectra, grid curtains can mainly affect the wind forces in the low‐frequency range. Copyright © 2015 John Wiley & Sons, Ltd.

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Across-wind responses of an aeroelastic tapered tall building

Cited by 85 publications

References 12 publications

An experimental study on the wind pressure distribution of tapered super high‐rise buildings

An experimental study on the wind pressure distribution of tapered super high‐rise buildings

Experimental investigation of aerodynamic forces and wind pressures acting on tall buildings with various unconventional configurations

Effects of grid curtains on the wind loads of a high-rise building

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