Bilateral Interference of Wind Loads Induced on Duplicate Building Models of Various Shapes

Pal, Supriya; Raj, Ritu; Anbukumar, S.

doi:10.1590/1679-78256595

Cited by 14 publications

(6 citation statements)

References 27 publications

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“…It is observed that in the fourth case where the incidence angle is 90 degrees the range of Cp values become positive in all the three models.  The reason for the changes in Cp value is because of the formation of vortex i.e., the swirling of wind particles about a particular axis because of which the Cp value decreases for the face A [10,11].…”

Section: Validationsmentioning

confidence: 99%

Wind Interference on a Hexagonal Shaped Highrise Buildings With Different Openings

Goyal¹,

Singh²,

Singh³

et al. 2022

JERA

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The wind load and pressure on a tall hexagonal structure altered as the apertures changed in this study. In various conditions, wind angles ranging from 0 to 90 degrees with a 30-degree gap are being used. The distance between the interference building and the model building was gradually raised from 50mm to 200mm at 50mm intervals. At a scale of 1:500, the main building model was studied. The ANSYS CFX package's validity was also tested using a rigid model with dimensions of 100mm x 100mm and a height of 700mm. The k-ε-turbulence model was utilised in the investigation, which was conducted using Computational Fluid Dynamics (CFD) and the ANSYS CFX software package. According to the analysis, changing the percentage of opening area has an influence on building stability because it affects the pressure on the leeward and windward faces. Contours and vortex formation were used to highlight the relationship between different scenarios. As the distance between the interference and model buildings expands, so does the pressure coefficient of the faces. The effects of apertures on the model building were also investigated, with 5-40% openings provided.

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Section: Validationsmentioning

confidence: 99%

Wind Interference on a Hexagonal Shaped Highrise Buildings With Different Openings

Goyal¹,

Singh²,

Singh³

et al. 2022

JERA

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“…Through few published studies on interference effects in unusually shaped buildings, it was found that this parameter has significant influence on interference effects. To quantify this influence, local pressure distribution was investigated by Pal et al (2021aPal et al ( , 2021b, finding maximum suctions in a triangular model 40% higher than in square models and moments in the cross-wind direction dominating the overall model behavior due to its unsymmetrical crosssectional shape.…”

Section: Introductionmentioning

confidence: 99%

Interference effects mapping on the static wind loading of a tall building

Lavôr

Brito

Loredo-Souza

2023

Lat. Am. j. solids struct.

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Wind-induced loading on buildings may be altered due to presence of upwind structures. These variations are quantified by the interference factors (IFs), which is determined experimentally for each case analyzed, since obtaining this quantification in codes and standards is still impractical due to the complexity of the multiparameters involved. To understand the influence of some of these parameters on the interference effects, contour plots and power spectra density were presented for IFs corresponding to aerodynamic coefficients of the along-wind and cross-wind force, as well as for torsion. Wind tunnel tests were conducted applying the synchronous pressure measurement technique. Interference arrangements with one and two upstream interfering buildings were investigated for different wind angles, relative positions and terrain roughness. Results indicate that the shielding effect is predominant in most of the studied cases. Nevertheless, the amplification effects are generally present in specific configurations and are usually caused by channeling and buffeting effects, as well as vortex shedding.

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“…The case study revealed that numerical simulations can be reliable for more complex wind simulations and corner modified building model show better performance to reduce drag force. [20] experimentally investigated experimentally the wind effects on fish plan shaped building model and discussed the pressure distribution pattern using pressure contours.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Wind Loads on Y Plan-Shaped Tall Building Using CFD

et al. 2022

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The increase in the population is at an exponential rate, and the available land is in the form of irregular shapes. That is why irregular shapes are very commonly built. Wind load increases with respect to height, so wind load evolution is necessary for such high-rise structures. Wind forces majorly depend on the plan's cross-sectional shape. Therefore, for an irregular shape, an investigation is needed for tall buildings. This paper demonstrates a detailed study on velocity stream line, external pressure coefficients, pressure distribution on the surfaces of the building and the turbulence kinetic energy for the Y-shaped plan for tall buildings under wind excitation for wind incidence angles of 0o to 180o. k- turbulence model is utilized to solve the problem using computational fluid dynamics techniques in ANSYS for terrain category II as per IS: 875 (Part3), 2015. Wind ward faces in all building models show positive pressure distribution, while the leeward faces are under the effect of negative pressure distribution. Wind load can be reduced on building models by modifying the corners, such as chamfering, rounding, and double recessed. The variation of pressure distribution on different faces of a "Y" plan shaped tall building for 0° and 180° is investigated using ANSYS CFX, and the pressure contours are plotted for all the faces of different "Y" shaped buildings to compute the effect of corner modification on pressure distribution. In this research, it was found that building models with rounded corners are highly efficient in resisting the wind load. Doi: 10.28991/CEJ-2022-08-02-06 Full Text: PDF

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Bilateral Interference of Wind Loads Induced on Duplicate Building Models of Various Shapes

Cited by 14 publications

References 27 publications

Wind Interference on a Hexagonal Shaped Highrise Buildings With Different Openings

Wind Interference on a Hexagonal Shaped Highrise Buildings With Different Openings

Interference effects mapping on the static wind loading of a tall building

Numerical Study of Wind Loads on Y Plan-Shaped Tall Building Using CFD

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