高烈度区某框架-核心筒结构耗能减震控制研究  

Study on energy dissipation and damping control of a frame-tube structure in high seismic intensity region

作　　者：裘赵云[1] 缪志伟[1] 李爱群[1] 

机构地区：[1]东南大学混凝土及预应力混凝土结构教育部重点实验室,南京210096

出　　处：《建筑结构》2013年第1期5-9,共5页Building Structure

基　　金：国家自然科学基金青年项目(51008078);东南大学新进博士科研启动项目(9205000030);东南大学基本科研业务费创新基金项目(104.205.2.5)

摘　　要：针对位于高烈度区的某高层建筑,采用高层结构减震控制理论,选取非线性粘滞流体阻尼器耗能装置对结构进行减震控制。首先基于通用有限元分析软件平台建立了三维结构弹塑性分析模型,然后分别对多条地震波输入下减震前后结构的动力响应进行了弹塑性时程分析,并从力、变形和能量三大指标方面对减震前后的结构在多遇和罕遇地震作用下的地震响应结果进行了对比分析。结果表明:采用非线性粘滞流体阻尼器减震方案可以提高结构的整体抗震性能,起到良好的减震效果。Based on the structural control theory,nonlinear viscous dampers were used in a high-rise building in high seismic intensity region to reduce the structural responses under strong earthquakes.Firstly,the 3D finite element model of the structure was established by general finite element software.Then,the nonlinear analysis program was compiled to calculate the seismic responses of the structure after inputting several earthquake waves.The dynamic response of the uncontrolled structure and controlled structure were investigated under the excitation of minor and major earthquake from three aspects of force,displacement and energy.The analysis result indicates that using viscous dampers can effectively improve the structural seismic performance.

关 键 词：减震控制 框架-核心筒 粘滞流体阻尼器 弹塑性时程分析 

分 类 号：TU398.2[建筑科学—结构工程]