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基于黏滞阻尼器耗散功率的超高层结构风振设计方法*
陈斯聪,周云,商城豪
摘 要

(广州大学土木工程学院,  广州  510006)

[摘要]针对超高层建筑结构抗风设计中黏滞阻尼器参数设计问题,推导出黏滞阻尼器的功率计算表达式和功率需求表达式,并研究了黏滞阻尼器的层位移放大系数,给出了黏滞阻尼器控制超高层结构风振的功率设计方法。以两幢超高层结构为例,对黏滞阻尼器控制超高层结构风振的功率设计流程进行逐步实现,对设计方法的可行性和误差进行分析,结果表明,采用功率设计方法进行消能减振初步设计可达到预期减振目标。

[关键词]超高层结构; 黏滞阻尼器; 功率设计; 风振控制

中图分类号:TU352, TU973文献标识码:A文章编号:1002-848X(2017)08-0069-07

 

Wind-induced vibration design method of super high-rise structures based on dissipative power of viscous dampers

Chen Sicong, Zhou Yun, Shang Chenghao

(School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)

Abstract:Aiming at the parameter design of viscous dampers in the wind resistance design of the super high-rise  structures, the power calculation expression and the power demand expression of the viscous dampers were deduced, and the amplification coefficient of storey drift of the viscous damper was studied. Power design method for controlling wind-induced vibration of super high-rise structures with viscous dampers was provided. Taking two super high-rise structures as an example, the power design flow of the viscous dampers for controlling the wind-induced vibration of super high-rise structures were realized step by step. The feasibility and error of the design method were analyzed. The results show that the preliminary design of energy-dissipation based on power design method can achieve the desired vibration reduction target.

Keywords:super high\|rise structure; viscous damper; power design; wind-induced vibration control

 

*广州市科技计划项目(2014J4100122)。

 

通讯作者:周云,博士,教授,Email:zhydxs@163.com。

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