An Evaluation Method of Wind Environment Between Buildings

Abstract

The present invention relates to a kind of evaluation method of the wind environment at pedestrian height between buildings, comprising the following steps: (1) based on the selected buildings, through orthogonal design, select a certain number of working conditions to build models in CFD software, Adopt Airpak software to carry out simulation analysis; (2) when carrying out simulation analysis in step (1), calculate the wind speed ratio under different working condition parameters; (3) gather and record the wind speed U0 everywhere at pedestrian height when there is no building interference on the spot, Utilize the wind speed ratio calculated in the step (2) to convert the maximum wind speed value between the two buildings under each working condition through the formula; (4) use the maximum wind speed at the pedestrian height between the buildings calculated in the step (3) The value is compared with the wind speed requirements stipulated in the code to evaluate whether it meets the requirements of the wind environment. This method can calculate the maximum wind speed ratio between buildings by using the size of the buildings, and preliminarily judge the maximum wind speed between buildings.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a method for evaluating the wind environment at pedestrian heights between buildings. Background technique [0002] With the development of society and the acceleration of urbanization, the changes of wind environment caused by high-rise buildings in cities have attracted more and more attention. The high-rise buildings become the path for the wind to pass through, and the narrow wind passage forms a "laneway effect", which makes the wind speed in this area significantly faster, causing unsafe and uncomfortable problems for pedestrians in the process of walking and activities. Some developed countries have enacted regulations requiring assessment of the surrounding environment for buildings that may cause wind environmental problems after completion. [0003] Now when designing residential areas, the influence of wind environment is considered, usually such as figure 1 The ...

AI Technical Summary

Problems solved by technology

[0003] Now when designing residential areas, the influence of wind environment is considered, usually such as figure 1 The design shown in the flow chart, this method often requires repeated debugging of residential area planning, consuming a lot of work to simulate the wind environment to ensure a comfortable wind environment

At present, when most architects use CFD (computational fluid dynamics) software, they often feel that it is more complicated, and the problem of wind environment design is often ignored, resulting in the problem of wind safety and wind comfort in the designed residential area.

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