A computer vision-based vibration measurement method for wind tunnel tests of high-rise buildings

2018 ◽  
Vol 182 ◽  
pp. 222-234 ◽  
Author(s):  
Mingfeng Huang ◽  
Baiyan Zhang ◽  
Wenjuan Lou
Keyword(s):  
Computer Vision ◽  
Wind Tunnel ◽  
Measurement Method ◽  
Vibration Measurement ◽  
Wind Tunnel Tests ◽  
High Rise

scholarly journals Wind tunnel tests of aerodynamic interference of the high-rise building and its nearest city surroundings

2013 ◽  
Vol 12 (2) ◽  
pp. 079-086
Author(s):  
Grzegorz Bosak
Keyword(s):  
Wind Tunnel ◽  
Building Design ◽  
Wind Pressure ◽  
Horizontal Wind ◽  
Wind Tunnel Tests ◽  
Wind Action ◽  
Building Model ◽  
High Rise ◽  
High Rise Building ◽  
Aerodynamic Interference

The paper summarizes the results of wind tunnel tests of the influence of aerodynamic interference on wind action of a high-rise building design in Warsaw. Measurements were accomplished in Wind Engineering Laboratory of Cracow University of Technology. Wind pressures on external surfaces of the building model were acquired in two different situations. Firstly, only the building model was placed in the tunnel working section, secondly, the building model with the nearest surroundings was taken under consideration. A study of the character of wind action differences caused by the nearest surroundings of the building was the main aim of the paper. Wind pressure coefficients on the external building surfaces and the difference of horizontal wind action on full scale were compared.

Investigation of torsional aeroelastic effects on high-rise buildings using forced vibration wind tunnel tests

2020 ◽  
Vol 200 ◽  
pp. 104158 ◽  
Author(s):  
Lianghao Zou ◽  
Feng Li ◽  
Jie Song ◽  
Tianyi Shi ◽  
Shuguo Liang ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Forced Vibration ◽  
Wind Tunnel Tests ◽  
High Rise

Evaluation on Across-Wind Response of Tall Building According to Aerodynamic Shapes

2013 ◽  
Vol 823 ◽  
pp. 131-136
Author(s):  
Jang Youl You ◽  
Ki Pyo You ◽  
Young Moon Kim
Keyword(s):  
Wind Tunnel ◽  
Cross Sections ◽  
Turbulence Intensity ◽  
Suburban Area ◽  
Light Weight ◽  
Wind Tunnel Tests ◽  
Large Cities ◽  
High Rise ◽  
Type Form ◽  
Wind Response

High-rise buildings constructed in large cities are thin and long in their shape and are both unconventional and light-weight. The purpose of this study is to reduce the across-wind response of high-rise buildings (unconventional) under the influence of wind load. As a means to change the external shape of high-rise buildings, we selected the flat Y-type form. It is generally applied in domestic high-rise buildings for examination. Wind tunnel tests take place on 12 high-rise buildings, composed of three different Y-type shapes such as basic square forms with square cross sections and unconventional forms, in a suburban area (α=0.15) with a turbulence intensity of 10%.

Interference Effects on High-Rise Buildings – Overview of the Recent Research

2014 ◽  
Vol 1057 ◽  
pp. 105-112
Author(s):  
Michal Franek ◽  
Juraj Žilinský
Keyword(s):  
Wind Tunnel ◽  
Wind Loads ◽  
Building Structures ◽  
Interference Effects ◽  
Wind Tunnel Tests ◽  
High Rise ◽  
Real Objects ◽  
Exposure Measurements

Wind loads on buildings are evaluated by using codes and standards. They are based on wind tunnel tests, which are performed on an isolated model in open exposure. Measurements by several researchers have shown that wind loads on real objects are considerably different than those on an isolated building. Structures around building decrease or increase the forces on building. This effect is termed interference. Interference includes geometry, layout and orientation of surrounding objects. Further aspects are direction of the wind and terrain conditions. For this reason it is necessary to evaluate interference before planning. The aim of the article is to overview the recent research, comparison between an isolated building and a group of buildings, to name the interference parameters and explain how they modify the forces on building. Also attempt to provide general recommendations for elementary models because this problem has large number of variations, especially for complicated models where it is necessary to evaluate the specific type of building. These recommendations should be used by designers and planners of the buildings.

scholarly journals Experimental Study of Interference Effects of a High-Rise Building on the Snow Load on a Low-Rise Building with a Flat Roof

2021 ◽  
Vol 11 (23) ◽  
pp. 11163
Author(s):  
Qingwen Zhang ◽  
Yu Zhang ◽  
Ziang Yin ◽  
Guolong Zhang ◽  
Huamei Mo ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Snow Accumulation ◽  
Interference Effects ◽  
Wind Tunnel Tests ◽  
Snow Load ◽  
Building Roof ◽  
High Rise ◽  
High Rise Building ◽  
Snow Distribution ◽  
Flat Roof

To explore the interference effects of a high-rise building on the snow load on a low-rise building with a flat roof, a series of wind tunnel tests were carried out with fine silica sand as a substitute for snow particles. The effects of the height of the interfering building and the distance between buildings on the snow distribution of the target building under three different wind directions were studied. The snow depth on the target building roof and the mass of particles blown off from the target building were measured during the wind tunnel tests, and the results showed that the snow distribution of the target building roof tends to be uniform when the interfering building is located upstream of the target building due to the shelter effect. When the interfering building is on the side of the target building, the snow distribution of the target building tends to be more uneven, because the interfering building increases the friction velocity on the target building roof near the interfering building. However, when the interfering building is located downstream of the target building, there will be an amplification effect of snow accumulation, and the snow distribution on the target building roof is nearly the same as that of the isolated condition. Under each wind direction, the interference effect of the snow load increases with the increase of the building height and the decrease of the building spacing. Therefore, the influence of the surrounding buildings on the snow distribution of the building roof cannot be ignored and should be considered in the structure design.

scholarly journals Wind tunnel tests of wind action on a high-rise building

2014 ◽  
Vol 13 (2) ◽  
pp. 163-171
Author(s):  
Grzegorz Bosak
Keyword(s):  
Wind Tunnel ◽  
Building Design ◽  
Wind Pressure ◽  
Horizontal Wind ◽  
Wind Tunnel Tests ◽  
Wind Action ◽  
High Rise ◽  
High Rise Building ◽  
University Of Technology ◽  
Wind Pressures

The paper summarizes the results of wind tunnel tests of a wind action on a high-rise building design in Warsaw. Measurements were accomplished in Wind Engineering Laboratory of Cracow University of Technology. Wind pressures on external surfaces of the building model were acquired. A study of the character of the wind action on a tower of the building was the main aim of the paper. A triangle shape with rounded corners of the cross section of the tower and a complex group of neighbor buildings support aerodynamic analysis in a wind tunnel. Wind pressure coefficients on the external building surfaces and the global horizontal wind action on the building tower on full scale were analyzed.  

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