隔震层阻尼分布对隔震体系扭转地震反应的影响

英文篇名：Influence of the Isolated Layer Damping Distribution to Torsion Earthquake Responses of the Isolated System
中文刊名：工程抗震与加固改造
英文刊名：Earthquake Resistant Engineering and Retrofitting
作者：谢宜峰 ; 李向真 ; 向伟明
英文作者：Xie Yi-feng ; Li Xiang-zhen ; Xiang Wei-ming(College of Civil Engineering ; Guangzhou University ; Guangzhou 510006 ; China)
中文关键词：平扭耦联 ; 隔震体系 ; 阻尼分布 ; 地震反应
英文关键词：lateral-torsional coupling ; isolated system ; damping distribution ; earthquake response
出版日期：2011-12-05
机构：广州大学土木工程学院;
年：2011
期：06
出版单位：工程抗震与加固改造

摘要

在基于平扭耦联隔震结构简化模型建立的动力方程的基础上,计算分析了隔震层阻尼相关动力参数对结构地震反应的影响。分析结果表明:阻尼分布对隔震效果有很大影响,合理地调整隔震层的阻尼分布,结构层间剪力和扭矩可以得到明显降低,得到很好的减震效果。并通过对一个工程实例隔震前后的时程反应分析对分析结果进行了验证。
Based on dynamic equation of the simplified model of the lateral-torsional coupling isolated structure,the damping dynamic parameters of the isolated layer related to the impact on the earthquake response are calculated and analyzed.The analysis results show that damping distribution has an important impact on the isolation,story shear force and torque can be significantly reduced by rational arrangement of isolated layer damping distribution,and get a good isolated effect.The analysis results are verified by an instance of a project's time-history response when it before being isolated and after being isolated.

引文

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