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The influence of interactions between two high-rise buildings on the wind-induced moment

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Himanshu Yadav at National Institute of Technology Hamirpur
Himanshu Yadav
Amrit Kumar Roy at National Institute of Technology Hamirpur
Amrit Kumar Roy
Anoop Kumar
Anoop Kumar
Anoop Kumar
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Abstract and Figures

The purpose of the study was to explore the interference effects on the wind-induced moment caused by two nearby high-rise structures. In order to use computational fluid dynamics (CFD), a stiff full-scale model of the buildings was created. Numerous (0°, 45° and 90°) wind incidence angles and two alternative model cross-sections (30 m × 30 m and 17 m × 40 m) were used in the investigation. In addition, it was looked at how building heights and aspect ratios affected interference effects. The findings showed that when there was close proximity between the structures, the interference effects on the wind-induced moment were most noticeable. The study also showed that interference effects were more evident for structures with greater aspect ratios. The degree of interference effects was also greatly influenced by the angle of wind incidence, with perpendicular wind directions having the greatest effects. These results underline how crucial it is to carefully examine the positioning and orientation of high-rise structures when making wind-induced moment designs. To ensure structural stability and reduce potential negative impacts from interference, designers and engineers should consider the proximity of neighboring structures, the aspect ratios of the buildings, and the angle at which the wind strikes the buildings. In wind-prone places, high-rise buildings’ safety and performance can be greatly improved by including such factors in the design process.
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Asian Journal of Civil Engineering (2024) 25:371–383
https://doi.org/10.1007/s42107-023-00781-4
RESEARCH
The influence ofinteractions betweentwo high‑rise buildings
onthewind‑induced moment
HimanshuYadav1· AmritKumarRoy1· AnoopKumar1
Received: 1 June 2023 / Accepted: 19 June 2023 / Published online: 30 June 2023
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2023
Abstract
The purpose of the study was to explore the interference effects on the wind-induced moment caused by two nearby high-
rise structures. In order to use computational fluid dynamics (CFD), a stiff full-scale model of the buildings was created.
Numerous (0°, 45° and 90°) wind incidence angles and two alternative model cross-sections (30m × 30m and 17m ×
40m) were used in the investigation. In addition, it was looked at how building heights and aspect ratios affected interfer-
ence effects. The findings showed that when there was close proximity between the structures, the interference effects on the
wind-induced moment were most noticeable. The study also showed that interference effects were more evident for structures
with greater aspect ratios. The degree of interference effects was also greatly influenced by the angle of wind incidence,
with perpendicular wind directions having the greatest effects. These results underline how crucial it is to carefully examine
the positioning and orientation of high-rise structures when making wind-induced moment designs. To ensure structural
stability and reduce potential negative impacts from interference, designers and engineers should consider the proximity of
neighboring structures, the aspect ratios of the buildings, and the angle at which the wind strikes the buildings. In wind-prone
places, high-rise buildings’ safety and performance can be greatly improved by including such factors in the design process.
Keywords CFD simulation· Drag· Fluent· Velocity profile· Pressure distribution· Pressure coefficient· Velocity vector
Introduction
The England Bridge thermal power plant collapse in 1965
brought attention to the importance of wind-induced inter-
ference effects, sparking a rise in interest in this field of
wind engineering study. But most recent research in this
field focuses on difficulties such as regional pressure distri-
bution, base bending moment, and base reaction of bending
moment. The Indian load code IS 875 part-1, 2, and 3 for
designing building structures now includes these research
findings (Kumar etal., 2012).
Despite these developments, little research has been done
on the specific subject of interference effects on the wind-
induced moment between two nearby high-rise buildings
(Kim etal., 2018). This study seeks to close this gap by care-
fully examining and comprehending the interference effects
that take place in such circumstances. This study aims to
provide important new insights into the interaction between
two high-rise buildings and the ensuing structural reaction
by concentrating on the effect of wind-induced moments
(Goyal etal., 2023). Due to cognitive and experimental con-
straints, previous research frequently overlooked the interfer-
ence effects on moment reactions in the context of high-rise
structures (Wang & Zhang, 2023). Studies that have already
been done have frequently ignored the complexity of inter-
ference effects in favor of simple influence factors. Recent
studies have highlighted the need of taking these impacts
into account, nevertheless (Chen etal., 2019; Rajabi etal.,
2022).
The external pressures on the surfaces of two separate
cross-section models, namely Model A with dimensions of
30m × 30m and Model B with dimensions of 17m × 40m,
were measured in this work using ANSYS Fluent. Calcula-
tions were made of the resulting wind-induced moments.
The distributions and correlations of the enveloped interfer-
ence factors (EIFs) of the peak base moment responses have
been investigated for a variety of configurations, includ-
ing breadth ratios, height ratios, lowered velocities, and
approaching turbulence intensities(Jagbir & Kumar, 2021;
* Himanshu Yadav
himanshu_phdce@nith.ac.in
1 Department ofCivil Engineering, National Institute
ofTechnology, Hamirpur, HimachalPradesh177005, India
Content courtesy of Springer Nature, terms of use apply. Rights reserved.
... Interestingly, the interference factor reached a minimum at a 90° wind incidence angle for each face, irrespective of building spacing. Yadav et al. [39] conducted a numerical investigation to examine the impact of interference on the wind-induced moment between two adjacent high-rise structures. Their findings indicated that, at specific wind incidence angles, the analysis of horizontal streamlines in Model A revealed intriguing patterns of vortex formations. ...
... The presence of other building structures has a substantial impact on the wind flow field, leading to various patterns and degrees of influence that either augment or diminish wind forces. On the windward side of buildings, stagnation lines and standing vortices are generated, as depicted in Fig. 29(a) Tutar and Oguz [35], Yadav et al. [39]. Minimal wind disturbance is observed between buildings and chimneys up to the height of the structures. ...
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... In addition, the model, which will be simulated using the free code NgSpice [34], should allow the study of both the evolution and distribution of temperatures in the splat as well as the cooling rate. The network simulation method, like other methodologies [35][36][37][38][39][40], makes it possible to solve coupled systems of partial differential equations that represent the science or engineering problem to be solved. The importance of this method lies in the fact that if any problem is well defined, it can be solved by following a series of application rules. ...
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