Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Wind and Structures Volume 37, Number 1, July 2023 , pages 1-13 DOI: https://doi.org/10.12989/was.2023.37.1.001 |
|
|
|
Wind tunnel tests of an irregular building and numerical analysis for vibration control by TLD |
||
Jianchen Zhao, Jiayun Xu and Hang Jing
|
||
| Abstract | ||
| Due to the irregular shape and the deviation of stiffness center and gravity center, buildings always suffer from complex surface load and vibration response under wind action. This study is dedicated to analyze the surface wind load and wind-induced response of an irregular building, and to discuss the possibility of top swimming pool as a TLD to diminish windinduced vibration of the structure. Wind tunnel test was carried out on a hotel with irregular shape to analyze the wind load and structural response under 8 wind incident angles. Then a precise numerical model was established and calibrated through experimental results. The top swimming pool was designed according to the principle of frequency modulation, and equations of motion of the control system were derived theoretically. Finally, the wind induced response of the structure controlled by the pool was calculated numerically. The results show that both of wind loads and wind-induced responses of the structure are significantly different with wind incident angle varies, and the across-wind response is nonnegligible. The top swimming pool has acceptable damping effect, and can be designed as TLD to mitigate wind response. | ||
| Key Words | ||
| energy dissipation; irregular buildings; swimming pools; TLD; wind loads | ||
| Address | ||
| Jianchen Zhao and Hang Jing:School of Civil Engineering, Henan University of Technology, Zhengzhou, Henan, China Jiayun Xu:Hubei Key Laboratory of Road Bridge & Structure Engineering, Wuhan University of Technology, Wuhan, Hubei, China | ||