Identification of Modal Parameters of a Multistoried RC Building Using Ambient Vibration and Strong Vibration Records of Bhuj Earthquake, 2001

被引：11
|
作者：
Singh, J. P. [1 ]
Agarwal, Pankaj [2 ]
Kumar, Ashok [2 ]
Thakkar, S. K. [2 ]
机构：
[1] Petrofac Intl Ltd, Sharjah, U Arab Emirates
[2] Indian Inst Technol, Dept Earthquake Engn, Roorkee, Uttar Pradesh, India
来源：
JOURNAL OF EARTHQUAKE ENGINEERING | 2014年 / 18卷 / 03期
关键词：
Ambient Vibration Testing; Stochastic Subspace Identification; Frequency Domain Decomposition; Modal Parameters; Strong Motion Records;
D O I：
10.1080/13632469.2013.856823
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Modal parameters of an instrumented multi-storied reinforced concrete building (G +9) have been studied using strong motion records of Bhuj Earthquake, 2001. The Ambient Vibration Testing (AVT) is also conducted to measure the modal parameters of the same building under ambient environmental forces. Frequency Domain Decomposition (FDD) or Peak Picking (PP) in frequency domain and Stochastic Subspace Identification (SSI) technique in time domain is used for extracting the modal parameters. The observed natural frequencies during strong motion are smaller than the ambient vibration testing. The difference in the frequencies may be caused by interaction between structure and soil due to high level of strain during strong motion earthquake. The modal pattern of first five modes obtained from strong motion records and ambient vibration records are identical.
引用
收藏
页码：444 / 457
页数：14
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