Wind Interference Effects from One High-Rise Building and Similar Low-Rise Flat-Roof Buildings
Publication: Journal of Structural Engineering
Volume 147, Issue 9
Abstract
Wind tunnel tests in an open terrain were carried out to study interference effects on peak pressure coefficients of one low-rise flat-roof building due to one high-rise building and similar low-rise buildings. The results demonstrate that amplification interference effects are significant on the minimum pressures at the edge of the low-rise building roof adjacent to the high-rise building and on the maximum pressures in the roof area away from the high-rise building, where the minimum pressure means the algebraic minimum with negative suction. Magnitudes of the envelope peak pressure coefficients on the low-rise building increase when the high-rise building height increases. The envelope minimum peak pressure coefficients in the roof middle area parallel to the high-rise building experience amplification effects at large building height and small spacing ratios, but other roof areas experience shielding effects at small spacing ratios, and interference factors of the envelope minimum peak pressure coefficients increase with the increase of the height and spacing ratios. When the spacing ratio is less than two, cases with large height ratios display amplification effects on the envelope maximum peak pressure coefficients, and amplification effects increase with the increase of the height ratio or the decrease of spacing ratio.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The work in this paper was partially supported by the National Natural Science Foundation of China (Grant Nos. 52078088 and 51378059) and the 111 Project of China (Grant No. B18062). The authors are also grateful to Ms. Shuo Wang from Beijing Jiaotong University for her contribution towards the paper.
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Published In
Journal of Structural Engineering
Volume 147 • Issue 9 • September 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Sep 16, 2020
Accepted: Apr 29, 2021
Published online: Jul 12, 2021
Published in print: Sep 1, 2021
Discussion open until: Dec 12, 2021
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