地震作用下网架结构振动反应敏感区域的确定方法  

The Method for Determining Vibration Sensitive Area of Grid Structure under Earthquake

作　　者：时瑞国 杨江波[1] 赵莉 SHI Rui-guo;YANG Jiang-bo;ZHAO Li(Xingtai Polytechnic College,Xingtai,Hebei 054035,China;Hebei Labor Relations Vocational College,Shijiazhuang,Hebei 050002,China)

机构地区：[1]邢台职业技术学院,河北邢台054035 [2]河北劳动关系职业学院,河北石家庄050002

出　　处：《邢台职业技术学院学报》2018年第5期86-89,95,共5页Journal of Xingtai Polytechnic College

摘　　要：文章从多质点弹性体系的动力平衡方程出发,基于体系的位移反应计算公式提出了一种振型组合的计算公式,利用该公式可以求得组合振型图,进而确定网架结构振动反应的敏感区域,为快速确定网架结构中阻尼器的合理布置位置提供了理论依据。In this paper,with reference to the dynamic equilibrium equation of multi-particle elastic system,a calculation formula of vibration mode combination is proposed based on the calculation formula of displacement response of the system.The formula could be used to obtain the combined vibration pattern and determine the the sensitive area of the vibration response of the grid structure.A theoretical basis is provided for quickly determining the reasonable arrangement position of the damper in the grid structure.

关 键 词：网架结构 模态分析 振型参与系数 振型组合 

分 类 号：TU311[建筑科学—结构工程]