[1]宝志雯,陈志鹏.从建筑物的脉动响应确定其动力特性[J].深圳大学学报理工版,1986,(1):36-49.
 Bao Zhiwen,Chen Zhipeng.Experimental Determination of Dynamic Characteristics of a Structure by Means of its Ambient Response Signals[J].Journal of Shenzhen University Science and Engineering,1986,(1):36-49.
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从建筑物的脉动响应确定其动力特性()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
期数:
1986年1期
页码:
36-49
栏目:
环境与能源
出版日期:
1986-03-31

文章信息/Info

Title:
Experimental Determination of Dynamic Characteristics of a Structure by Means of its Ambient Response Signals
作者:
宝志雯陈志鹏
Author(s):
Bao ZhiwenChen Zhipeng
文献标志码:
A
摘要:
本文从建筑物在环境激励下的响应信号确定其动力特性的假设前提出发, 提出用相对测点的互谱与自谱之比来确定振型, 并论证了该方法的近似性, 最后举一个实例, 列出用上述方法所确定的振型的结果, 说明该方法是可行的, 在确定建筑物前几阶振型上具有一定的精度.
Abstract:
In this paper three assumptions of the ambient vibration tests of building structures are presented; an approximate method of determining the mode shapes by means of analyzing the signals obtained by ambient tests is derived; and the conditions of approximation discussed. It is demonstrated that, under certain conditions,mode shapes can be approximately determined by comparisons between cross-spectral density function and auto-spectral density function of the response signals of different points. The paper also provides an example of determining the mode shapes and modal parameters of an existing tall building by applying the above-mentioned method. The results show that this method is of practical value and can give approximate and satisfactory results in the determination of the first several modal parameters of the dynamic characteristics of building structures.
更新日期/Last Update: 2016-05-23