Applied and Computational Engineering

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Proceedings of the 2023 International Conference on Functional Materials and Civil Engineering

Series Vol. 26 , 07 November 2023


Open Access | Article

How the surrounding multi-scale building clusters affect the wind loads of the super high-rise building

Zhifei Li * 1 , Zhibin Sun 2
1 The Experimental High School Attached to Beijing Normal University
2 The Chinese Academy of Sciences

* Author to whom correspondence should be addressed.

Applied and Computational Engineering, Vol. 26, 1-19
Published 07 November 2023. © 2023 The Author(s). Published by EWA Publishing
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Citation Zhifei Li, Zhibin Sun. How the surrounding multi-scale building clusters affect the wind loads of the super high-rise building. ACE (2023) Vol. 26: 1-19. DOI: 10.54254/2755-2721/26/20230783.

Abstract

Many super high-rise buildings emerge in modern cities with urban development, facilitating work, accommodations, etc. However, their safety risks and accidents due to the wind are urgent problems with the complex flow field in cities. The research on wind loads of super high-rise buildings is thus crucial, but most studies tend to consider only the influence of the surrounding single-scale building clusters, rarely considering multi-scale ones. In this paper, the influence of the surrounding multi-scale building clusters on the wind loads of a super high-rise building is investigated. The wind field of a super high-rise building surrounded by four different arrangements of idealized, simplified buildings is first simulated using computational fluid dynamics (CFD) methods: RANS and Hybrid LES/RANS models. It is found that surrounding tall buildings can significantly affect the pressure distribution on the windward and leeward sides of the super high-rise building, such as fluctuating, extreme, and mean wind pressure. The vortex, formed largely due to short buildings, increases the negative pressure at the back of the super high-rise building. In addition, simulations are conducted for the wind field around the CITIC Tower in Beijing CBD, and it is found that the flow field of the actual building group is more complex due to the strong interactions between buildings, and the flow near the ground is even more complex. All simulation results are validated by the wind tunnel tests. This study can provide important guidance for the wind safety design of super high-rise buildings and the future planning of urban buildings.

Keywords

super high-rise building, wind loads, multi-scale urban morphology, CFD

References

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Data Availability

The datasets used and/or analyzed during the current study will be available from the authors upon reasonable request.

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Volume Title
Proceedings of the 2023 International Conference on Functional Materials and Civil Engineering
ISBN (Print)
978-1-83558-073-8
ISBN (Online)
978-1-83558-074-5
Published Date
07 November 2023
Series
Applied and Computational Engineering
ISSN (Print)
2755-2721
ISSN (Online)
2755-273X
DOI
10.54254/2755-2721/26/20230783
Copyright
© 2023 The Author(s)
Open Access
This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

Copyright © 2023 EWA Publishing. Unless Otherwise Stated