Vibration control using ATMD and site measurements on the Shanghai World Financial Center Tower
Vibration control using ATMD and site measurements on the Shanghai World Financial Center Tower
复制标题
上海环球金融中心大厦采用 ATMD 进行振动控制和现场测量
DOI：
10.1002/tal.1027
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发表时间：
2014-02-10
影响因子：
2.4
通讯作者：
Liu, Jie
中科院分区：
文献类型：
--
作者：
Lu, Xilin;Li, Peizhen;Liu, Jie
上海环球金融中心大厦是中国大陆最高的地标性建筑，高492米。为了减轻风振，在第90层安装了一套两套相同的阻尼装置。阻尼装置为主动调谐质量阻尼器，在风荷载作用下，使能主动控制特性，在地震条件下，使能主动控制特性失效，阻尼装置为被动调谐质量阻尼器。给出了阻尼装置在不同振动工况下的动态参数、结构分析结果和现场实测结果。分析和现场测量结果表明，阻尼装置性能良好，具有以下特点：在现场测量中，阻尼比提高了8倍，在风速低于分析设计值时，风加速度响应降低了60%。版权所有：John Wiley & Sons， Ltd
The Shanghai World Financial Center Tower is the tallest landmark building in mainland China, with a height of 492m. In order to mitigate wind-induced vibration, a set of two identical damping devices was installed at the 90th floor. The damping devices are active tuned mass dampers: under wind loading, the active control feature is enabled, while the active control feature becomes disabled under earthquake conditions, and the damping devices function as passive tuned mass dampers. The dynamic parameters of the damping devices, structural analysis results and field measurement results under different vibration scenarios are presented in this paper. The analysis and field measurement results show that the damping devices performed well and had the following characteristics: they increased the damping ratio up to eight times in field measurements and reduced the wind acceleration response up to 60% when wind speed is below the designed value in the analysis. Copyright (C) 2012 John Wiley & Sons, Ltd.