Effects of aerodynamic modification mechanisms on interference from neighboring buildings

Lo, Yuan-Lung; Kim, Yong Chul; Yoshida, Akihito

doi:10.1016/j.jweia.2017.06.018

Cited by 15 publications

(8 citation statements)

References 42 publications

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“…Therefore, researchers have studied the wind velocities and vectors around numerous buildings using flow visualization or particle image velocimetry (PIV) [8][9][10]. Moreover, several previous studies have examined the characteristics of wind-load components generated in areas with dense concentrations of buildings [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. However, while some have studied the consequences of adjacent tall buildings on the wind-force components of the principal tall building, others have investigated the wind-force components related to the principal tall building and not of the adjacent tall buildings.…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic Characteristics and Lateral Displacements of a Set of Two Buildings in a Linked Tall Building System

Chen

Kim

Lee

2021

Sensors

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This study evaluates the aerodynamic characteristics and lateral displacements of two staggered buildings in a linked-building (LB) system. Particle image velocimetry and pressure measurements are employed, and the lateral displacement is evaluated using a 3-dimensional analytical model. When the gap distance between two non-linked buildings is small, the wind flows in a narrow jet, and a strong suction is generated on the inner surfaces of the two buildings, leading to a large cross-wind-induced response. However, the cross-wind-induced response is significantly reduced when a link is installed, because the suction forces generated from the buildings are in opposite directions and have a negative aerodynamic correlation. Conversely, with a large gap distance, the buildings at the front obstruct the wind blowing toward the rear buildings. Therefore, while the pressure distribution, wind-force coefficients, and wind-induced responses of the front and rear buildings show similar trends, the magnitude of impact on the front building is larger than that on the rear building. Installing a link is demonstrated to reduce the wind-induced response of the buildings in an LB system. However, the reduction in the along-wind-induced response is less than that in the cross-wind-induced response when the gap distance is small.

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Section: Introductionmentioning

confidence: 99%

Aerodynamic Characteristics and Lateral Displacements of a Set of Two Buildings in a Linked Tall Building System

Chen

Kim

Lee

2021

Sensors

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“…All these studies only focused on the generic building shapes like square prism or rectangular prism buildings. Lo, Kim, & Yoshida (2017) studied interference effects of tall buildings with aerodynamic modification treatments. The principal building was modified by aerodynamic treatments while the neighboring building was a square prism model.…”

Section: Introductionmentioning

confidence: 99%

Deep learning-based investigation of wind pressures on tall building under interference effects

Liu

Tao

et al. 2020

Journal of Wind Engineering and Industrial Aerodynamics

108

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“…Taniike investigated the interference mechanism for variant wind pressure and enhanced wind forces on neighboring tall buildings. There are some other researches in the field of wind interference effect on high‐rise buildings or some special buildings like cooling towers, concerning on environmental effect, wind energy, aeroelastic effects, and so on …”

Section: Introductionmentioning

confidence: 99%

Wind interference effects of a ventilated supertall building on its neighboring supertall building—A case study

Liang

Zhao

2020

Structural Design Tall Build

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Summary Opening ventilating holes on a supertall building is an effective way to reduce its wind‐induced structural response and enhance its wind‐resistant performance. However, its interference effect on the neighboring supertall buildings has seldom been studied yet. Taking two actual neighboring buildings, the Guangdong International Financial Center (IFC) and the Guangzhou Chow Tai Fook Finance Centre (CTF) as examples, this study carried out high‐frequency force balance wind tunnel tests to investigate the interference effect of the IFC's ventilating openings on the wind‐induced response of CTF. Results show that when CTF is located in the downstream area of IFC, the ventilating openings on IFC make the high‐energy frequency band of the power spectral density (PSD) of CTF's crosswind aerodynamic load offset obviously towards the lower frequency interval. Consequently, the wind‐induced response of CTF can be significantly magnified or minified depending on the reduced structural natural frequencies. Since the reduced natural frequency for the structural base bending moment computation is usually smaller than that for the acceleration response computation, ventilation openings on IFC can be advantageous to the crosswind base bending moment response relevant to structural safety design, and disadvantageous to the acceleration response relevant to occupant comfort assessment.

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Effects of aerodynamic modification mechanisms on interference from neighboring buildings

Cited by 15 publications

References 42 publications

Aerodynamic Characteristics and Lateral Displacements of a Set of Two Buildings in a Linked Tall Building System

Aerodynamic Characteristics and Lateral Displacements of a Set of Two Buildings in a Linked Tall Building System

Deep learning-based investigation of wind pressures on tall building under interference effects

Wind interference effects of a ventilated supertall building on its neighboring supertall building—A case study

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