Wind-induced Responses of Super-tall Buildings with Various Complicated Cross-sectional Shapes

Title
Wind-induced Responses of Super-tall Buildings with Various Complicated Cross-sectional Shapes
Author(s)
김원술; 이진학; Yukio Tamura; Akihito Yoshida
KIOST Author(s)
Yi, Jin-Hak(이진학)
Alternative Author(s)
김원술; 이진학
Publication Year
2017-08-28
Abstract
The effectiveness of aerodynamic modification to reduce wind loadings has been widely reported. However, most of previous studies have been investigated dynamic forces and pressure distributions on tall buildings with various unconventional configurations. This study was investigated dynamic characteristics and aerodynamic instability of super-tall buildings with unconventional configurations through extensive aeroelastic model experiments. Seventeen types of super-tall building models were considered such as basic and corner modification with corner cut, chamfered, oblique opening, tapered, inversely tapered, bulged, helical with twist angles of 90 , 180 , 270 , 360 and composite with 360 helical & corner cut, 4-tapered & 360 helical & corner cut, setback & corner cut, setback & 45 rotate. The results show that helical and composite models were most effective in reducing the wind-induced vibration responses in both along- and across-wind directions. configurations. This study was investigated dynamic characteristics and aerodynamic instability of super-tall buildings with unconventional configurations through extensive aeroelastic model experiments. Seventeen types of super-tall building models were considered such as basic and corner modification with corner cut, chamfered, oblique opening, tapered, inversely tapered, bulged, helical with twist angles of 90 , 180 , 270 , 360 and composite with 360 helical & corner cut, 4-tapered & 360 helical & corner cut, setback & corner cut, setback & 45 rotate. The results show that helical and composite models were most effective in reducing the wind-induced vibration responses in both along- and across-wind directions.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23856
Bibliographic Citation
ASEM17, pp.1 - 12, 2017
Publisher
Techno
Type
Conference
Language
English
Publisher
Techno
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