【作者】 郭安薪； 欧进萍； 李惠； 关新春； 杨蔚彪；

【Author】 GUO An-xin, OU Jin-ping, LI Hui, GUAN Xin-chun, YANG Wei-biao( School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090; Institute of Steel Structure design of Metallurgy Bureau, Beijing, 10088)

【机构】 哈尔滨工业大学土木工程学院； 冶金部建筑研究总院钢结构设计所；

【摘要】 本文针对上海广畅国际大厦的抗震和抗风问题,通过对不同控制装置的优缺点和适用范围进行比较分析后,采用磁流变阻尼器和粘滞阻尼器相结合的方式,探讨了该结构在无控和安装控制装置后在风振和地震作用下的动力响应和控制效果。文中首先建立了结构的力学模型,分析了无控结构的频率特性;此后确定了施加在结构上的风荷载和地震荷载;最后分析了无控结构以及安装磁流变阻尼器和粘滞阻尼器的结构在脉动风荷载、多遇地震以及罕遇地震作用下的动力响应。分析结果表明,采取磁流变阻尼器以及粘滞阻尼器相结合的方式,能够有效地控制该结构在风和地震作用下的响应。通过本文的研究,为高层结构的抗震和抗风提供了—条新的思路。更多还原

【Abstract】 Wind-resistant and aseismic analysis of Guang Chang International Center in Shanghai was performed in this paper by using both MR dampers and viscous dampers. The dynamic responses of the uncontrolled structure and structure with MR dampers and viscous dampers were investigated. In this study, the analytic model of the structure was firstly established. Then, the wind and earthquake inputs were determined and be applied to the structure. Finally, the dynamic responses of the uncontrolled and controlled structures were investigated under the excitations of wind and earthquake inputs, The analysis results indicate that the responses of the structure can be significantly reduced with the installation of MR and viscous dampers.更多还原