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CLC number: TU241; TU98

On-line Access: 2016-05-04

Received: 2016-01-20

Revision Accepted: 2016-02-03

Crosschecked: 2016-04-07

Cited: 0

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Citations:  Bibtex RefMan EndNote GB/T7714


Xiao-yu Ying


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Journal of Zhejiang University SCIENCE A 2016 Vol.17 No.5 P.378-388


Developing planning indicators for outdoor wind environments of high-rise residential buildings

Author(s):  Xiao-yu Ying, Grace Ding, Xiao-jun Hu, Yin-qi Zhang

Affiliation(s):  Department of Architecture, Zhejiang University City College, Hangzhou 310015, China; more

Corresponding email(s):   yingxiaoyu@zucc.edu.cn

Key Words:  Outdoor wind environment, Planning indicators, Building cluster layout, High-rise building

Xiao-yu Ying, Grace Ding, Xiao-jun Hu, Yin-qi Zhang. Developing planning indicators for outdoor wind environments of high-rise residential buildings[J]. Journal of Zhejiang University Science A, 2016, 17(5): 378-388.

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%T Developing planning indicators for outdoor wind environments of high-rise residential buildings
%A Xiao-yu Ying
%A Grace Ding
%A Xiao-jun Hu
%A Yin-qi Zhang
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%DOI 10.1631/jzus.A1600026

T1 - Developing planning indicators for outdoor wind environments of high-rise residential buildings
A1 - Xiao-yu Ying
A1 - Grace Ding
A1 - Xiao-jun Hu
A1 - Yin-qi Zhang
J0 - Journal of Zhejiang University Science A
VL - 17
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1600026

The construction of a building may change the microclimate in the vicinity, and planning indicators in a master plan may directly affect the outdoor physical environmental quality in residential areas. An inappropriate plan for a site may accelerate wind and intensify vortexes over places on the pedestrian levels, which leads to an adverse outdoor environment. Therefore, the design of a cluster of buildings should not focus only on the buildings but also provide a good outdoor environment around the buildings. To tackle the problem of inadequate wind environment, the relationship between the building’s floor area ratio and height was identified in this study as the main planning indicator to be examined on its effects on the outdoor wind environment. A computational fluid dynamics (CFD) model was hence developed to simulate the wind conditions generated by some typical site layouts with different values for planning indicators under relevant weather conditions, which were typical of those in Hangzhou, China. The simulated wind conditions are assessed using the wind speed ratio over the whole area of the building cluster at the pedestrian level. The effects on the local wind condition due to the varying of the planning indicators are discussed whilst considering the potential construction costs. The indicators resulting in better external conditions are highlighted in the conclusion as the recommendation which could be used as a rule of thumb by architects and planners at the master planning stage. The study disproves the common belief in the practice that a lower floor area ratio means fewer buildings and therefore greater external comfort. In fact, the higher the building, the greater the outdoor comfort wind zone for pedestrians. However, the increment in comfort area is limited to buildings extending from 25 to 30 levels.


方法:1. 通过确定建筑容积率、建筑密度和建筑层数之间的关系,建立三维高层建筑群布局模型,列出19种可能的指标组合(图2);2. 通过日照模拟分析工具Tarch和建筑消防间距计算筛选出13种符合当前规划要求的指标组合;3. 运用风环境模拟软件Phoenics,对13种指标组合形成的高层建筑群布局进行风环境模拟运算;利用图形分析软件Photoshop CS,计算出舒适风面积比值,并进行相互对比(图3和4);4. 根据土建造价对不同建筑群布局的总造价进行对比(图6)。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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