环境激励条件建筑结构的试验建模研究

来源 :南京航空航天大学学报（英文版） | 被引量 : 0次 | 上传用户：lzl2008000

【摘要】

：

通过环境激励模态识别技术对一座中高层新结构大楼环境激励试验建模研究.首先介绍了试验模型设计,并在现场测量整栋大楼在环境激励下的振动响应.然后采用新发展的频率空间域

【作者】

：

张令弥田村幸雄吉田昭仁

【机构】

：

南京航空航天大学振动工程研究所,东京工艺大学建筑科学部

【出处】

：

南京航空航天大学学报（英文版）

【发表日期】

：

2004年期

【关键词】

：

实验建模模态识别阻尼特性 experimental modeling modal identification damping characteristic

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论文部分内容阅读

通过环境激励模态识别技术对一座中高层新结构大楼环境激励试验建模研究.首先介绍了试验模型设计,并在现场测量整栋大楼在环境激励下的振动响应.然后采用新发展的频率空间域方法(FSDD)进行模态识别,分别在0～4.5 Hz和0～6.5 Hz频率范围识别出9阶弯曲和扭转模态频率和振型.采用频率空间域方法识别了结构的阻尼特性, 并得到满意的结果.所得试验模型已成功应用于CFT大楼的有限元动态模型修正.所研发的试验建模技术可望在结构响应预报, 健康监测和振动控制中发挥重要作用.

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环境激励条件建筑结构的试验建模研究

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