Wind-induced vibration control for a kilometer skyscraper

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (21) : 242-251.

CHEN Yong, JIN Zhao, CHEN Peng

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Abstract

Here, a kilometer skyscraper proposed to be constructed by China National Building Corporation was taken as the study object.Firstly, its wind-induced vibration analysis was performed using the finite element (FE) software ANSYS.The results showed that the wind direction angle 330°is the most unfavorable wind direction to its structural displacement response; the wind direction angle 0°is the most unfavorable wind direction to its structural torsional angle displacement and comfort response; its inter-story drift angle and displacement ratio extreme value exceed requirements in the design standard.So, mass damper and viscous one were used by the authors to control the skyscraper’s wind-induced vibration.The different control schemes were designed for the 2 control devices considering effects of factors including damper’s parameters, number and arrangement.Finally, some wind-induced vibration control suggestions were proposed for the kilometer skyscraper to provide a reference for further wind-induced vibration control design of similar structures.

Key words

kilometer skyscraper / wind tunnel test / wind-induced response / wind-induced vibration control

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CHEN Yong, JIN Zhao, CHEN Peng. Wind-induced vibration control for a kilometer skyscraper[J]. Journal of Vibration and Shock, 2019, 38(21): 242-251

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