The effect of plan ratios on wind interference of two tall buildings

Behera, Siddharth; Ghosh, Debdutta; Mittal, Achal Kumar; Tamura, Yukio; Kim, Wonsul

doi:10.1002/tal.1680

Cited by 9 publications

(5 citation statements)

References 16 publications

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“…The building facades are often damaged under strong winds (Hu et al, 2017, 2019; Liang et al, 2020). Though some new methods emerge (Hu et al, 2020; Lin et al, 2021; Kim et al, 2021), wind tunnel testing is still the most favorable way to obtain the wind pressures on buildings (Sy et al, 2019; Behera et al, 2020; He et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Experimental investigations of interference effects on wind pressures of tall buildings

Peng

Liu

et al. 2021

Advances in Structural Engineering

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The interference effects between two tall buildings on building surface wind pressures are studied by using wind tunnel experiments. Different breadth ratios ( B r = B interfering/ Bprincipal), depth ratios ( D r = D interfering/ Dprincipal), and relative locations of the two buildings are tested. The results show that the interference effects on mean wind pressures on the windward face and the right face are more considerable than those on the other two faces. The windward face mainly shows the shielding effect, while the right face exhibits the amplification effect. The surface interference factors ( SIF) of windward and right faces under different breadth ratios and depth ratios have clear correlation with the reference values ( B r = D r = 1.0), and a series of correlation formulas are obtained. The SIF values of the windward face in tandem arrangement and the maximum and minimum interference factors of the right face in parallel arrangement are formulated. The most prominent local peak pressure under different cases mainly concentrates in the side edge and upper edge of the windward face, the left upper corner, left lower corner, and the upper-middle part of the right face.

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Section: Introductionmentioning

confidence: 99%

“…Behera et al (2020) carried out wind tunnel tests to examine the interference effect between buildings with various plan ratios. The peak pressure coefficients on the windward face of the principal building were analyzed.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations of interference effects on wind pressures of tall buildings

Peng

Liu

et al. 2021

Advances in Structural Engineering

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“…Blocken [29] discussed the important aspect of CFD for defining urban physics and gave ten important tips and tricks towards the accurate and reliable simulations. Behera et al [30] performed an experiment in the boundary layer wind tunnel to investigate the wind interference effect on tall buildings with varying plan ratios, and observed that the interference zone extends over a larger area as the building plan ratio increases. Tamura et al [31] performed a series of wind tunnel tests to determine the aerodynamic performance and pedestrian level wind characteristics of different super tall buildings having square, rectangular, and elliptic plan with corner cuts.…”

Section: Introductionmentioning

confidence: 99%

Wind Effects on Rectangular and Triaxial Symmetrical Tall Building Having Equal Area and Height

et al. 2022

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The study aims to investigate wind effects on the equal area and the same height building model having the plan cross-sectional shape in the form of regular and irregular shape bulidings. The ratio of modification in the cross-sectional shape is kept same for regular and irregular shaped models because limited studies are available for such type of comparison. The responses of the structure to resist the wind load is increased by applying these modifications in the corner configuration such as corner cut, chamfer, and fillet in the plan shape of the structure. The numerical study is performed using ANSYS CFX and wind incidence angle varies in the range of 0° to 180° at the interval of 15°. The results of velocity and pressure distribution are presented in the form of pressure contours and wind force coefficients for all four-building models which are presented in the form of a graph. The comparison of numerical simulation results on two models are compared with the different international standards and with the experimental results. The regular shape with a corner cut and a “Y”-shaped structure with a fillet corner model performed the best among all models for resisting overall wind force. The results of pressure distribution of all four models are presented in the form of pressure contours for 0° and 90° wind angles.

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“…Many researchers have studied proximity effects between tall buildings [4,5,6,7,8,9,10,11,[12][13][14][15][16][17][18][19]. Behera et al [20] studied the proximity effect between high-rise buildings with different plan ratios and interfering building positions. It was observed that interference effects were beneficial with respect to the maximum positive pressure, but minimum negative pressure significantly increased.…”

Section: Introductionmentioning

confidence: 99%

Proximity effects between two plus-plan shaped high-rise buildings on mean and RMS pressure coefficients

2021

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Wind-induced interference effects may result in a substantial increase or reduction in the wind forces on the buildings constructed in groups due to modifying wind flow around, according to the shape and relative position of the buildings. Experimental study of wind-generated proximity effects on mean and root mean square (RMS) pressure coefficients between two tall buildings are investigated in detail for various interference conditions in this study. The Interference effects on mean and RMS pressure coefficients are presented as interference factors, i.e., mean interference factor (MIF) and RMS interference factor (RIF). Results show that the interference effects on local wind pressure are significantly higher on the windward side's faces near the recessed corner. The full blockage condition generates suction on walls facing the gap. The half blockage and no blockage conditions create a more severe interference effect than the full blockage. The maximum value of MIF is 4, 9 and 13 in full, half, and no blockage condition, respectively. Interference effects result in reduced wind load on side faces and faces at the leeward side. Suction at side faces reduced approximately by 65% in full blockage condition. RIF's values less than unity are observed for all interference cases.

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The effect of plan ratios on wind interference of two tall buildings

Cited by 9 publications

References 16 publications

Experimental investigations of interference effects on wind pressures of tall buildings

Experimental investigations of interference effects on wind pressures of tall buildings

Wind Effects on Rectangular and Triaxial Symmetrical Tall Building Having Equal Area and Height

Proximity effects between two plus-plan shaped high-rise buildings on mean and RMS pressure coefficients

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