北京奥林匹克中心演播塔动力特性实测研究  

Test Study on Dynamic Characteristic of Beijing Olympic Center Broadcast Tower

作　　者：黄瑞新[1,2] 李爱群[1,2] 张志强[1,2] 

机构地区：[1]东南大学土木工程学院,南京210096 [2]东南大学混凝土与预应力混凝土结构教育部重点实验室,南京210096

出　　处：《特种结构》2010年第1期49-52,共4页Special Structures

基　　金：国家"十一五"科技支撑计划项目(2006BAJ03A04)

摘　　要：本文为了研究北京奥林匹克中心演播塔,利用脉动法对该结构进行了动力特性测试。利用谱分析方法对所采集的数据进行了分析,得出了该结构的自振频率和模态。根据实际结构,利用软件SAP2000建立了该结构的三维有限元模型,采用特征向量法,得到了该结构的自振频率和模态的理论值。测试结果与理论计算结果对比表明,结构的频率相差不到12.5%,模态相似。In the paper, the dynamic characteristics of Beijing Olympic Center Broadcast Tower were tested by means of pulsating theory. The data were analyzed by using spectrum analysis method. Frequency and mode of structure were gained. Based on the practical structure, three dimensional finite element model was set up by SAP2000 software and its characteristics were calculated by eigenvectors method. The difference between test results and calculated results are less than 12.5 percent and the modes are similar.

关 键 词：脉动测试 动力特性 结构模态 

分 类 号：TU311.3[建筑科学—结构工程]