Wind Load Characteristics of Tall Building with Atrium

Abstract:

Wind tunnel test of 1:500 rigid model of tall building with atrium was carried out. Based on the experimental results, characteristics of wind pressures on atrium facades and wind loads on the structure were investigated in detail. The results show that the formation of flow separation on the building top plays a critical role in the generation of wind pressures on the atrium facades. Meanwhile, wind pressure coefficient distributions on the atrium facades are found to be relatively uniform. Moreover, the horizontal and vertical correlations of pressure coefficient exhibit high at most locations on atrium facades. With the increasing of the opening ratio, the mean wind pressure coefficients first decreased and then stabilized, and the fluctuating wind pressure coefficients first decreased and then increased. A design guideline for the wind-resistant design of atrium facades was proposed, and the results predicted by the proposed guideline were in good agreement with those from the wind tunnel tests, indicating that the proposed guideline can be used in engineering applications. When the opening ratio is no more than 5.33%, the effect of the facade pressures within the atrium on the wind loads on the structure can be ignored. For such cases, the wind-resistant design for a tall building with atrium can refer to that of a similar shape tall building without atrium.

• Periodical: Advanced Materials Research (Volumes 639-640)
• Pages: 515-522
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.639-640.515
• Online since: January 2013
• Authors: Yong Gui Li, Q.S. Li
• Keywords: Atrium, Tall Building, Wind Load, Wind Tunnel Test, Wind-Resistant Design Methods

References

[1] Turner S. Binnie P. An indoor air quality survey of twenty-six Swiss office buildings [J]. Environmental Technology, 1990, 11: 303–314.

DOI: 10.1080/09593339009384867

[2] Saxon R. The atrium comes of age [M]. Longman, London, (1994)

[3] Sharples S, Bensalem R. Airflow in courtyard and atrium buildings in the urban environment: a wind tunnel study [J]. Solar Energy, 2001, 70(3) : 237-244

DOI: 10.1016/s0038-092x(00)00092-x

[4] Horan J M, Finn D P. Sensitivity of air change rates in a naturally ventilated atrium space subject to variations in external wind speed and direction [J]. Energy and Buildings, 2008, 40: 1577-1585

DOI: 10.1016/j.enbuild.2008.02.013

[5] Liu Pei-Chun, Lin Hsien-Te, Chou Jung-Hua. Evaluation of buoyancy-driven ventilation in atrium buildings using computational fluid dynamics and reduced-scale air model [J]. Building and Environment, 2009, 44: 1970-1979

DOI: 10.1016/j.buildenv.2009.01.013

[6] Moonen P, Dorer V, Carmeliet J. Evaluation of the ventilation potential of courtyards and urban street canyons using RANS and LES [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2011, 99: 414-423

DOI: 10.1016/j.jweia.2010.12.012

[7] Li Nian-ping, He Dong-yue, Li Jing, et al. Predict ion model of buoyancy-driven ventilation in residential buildings with atrium [J]. Journal of Hunan University( Natural Sciences), 2010, 37(6): 6-10

[8] Deng Qiao-lin. The character research of natural ventilation in the tall residential building with atrium(D). Changsha, Hunan University , (2007)

[9] Morgan H P, Hansell G O. Atrium buildings: Calculating smoke flows in atria for smoke-control [J]. Fire Safety Journal, 1987, 12(1): 9-35

DOI: 10.1016/0379-7112(87)90013-0

[10] XIE Dan, ZHANG Wen-lei, The Effect of Natural Wind to the Atrium Building Smoke Migration. Procedia Engineering, 2011, 11: 560-565

DOI: 10.1016/j.proeng.2011.04.696

[11] Meroney R N. Wind effects on atria fires [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2011, 99: 443-447

DOI: 10.1016/j.jweia.2010.11.003

[12] Al-Hemiddi N A, Megren Al-Saud K A. The effect of a ventilated interior courtyard on the thermal performance of a house in a hot–arid region [J]. Renewable Energy, 2001, 24: 581-595

DOI: 10.1016/s0960-1481(01)00045-3

[13] Safarzadeh H, Bahadori M N. Passive cooling effects of courtyards [J]. Building and Environment, 2005, 40: 89-104

DOI: 10.1016/j.buildenv.2004.04.014

[14] Berkovic S, Yezioro A, Bitan A. Study of thermal comfort in courtyards in a hot arid climate [J]. Solar Energy, 2012, 86: 1173-1186

DOI: 10.1016/j.solener.2012.01.010

[15] Peng Xiaoyun, Liu Xiaotu. Study on thermal environment and energy efficiency in atrium [J]. Industrial Construction2002, 32(6): 29-32

[16] Li Yong-gui. Wind Loads and Wind-Induced Lateral-Torsional Coupled Response of Tall Bulidings (D). Changsha, Hunan University , (2012)

[17] GB 50009—2001 Load Code for the Design of Building Structures[S]. Bering: China Architecture & Building Press, (2006)