Abstract
This paper presents field observations on the modal properties of a tall building under ambient conditions. Acceleration data was collected by a force-balance triaxial accelerometer at one corner of the building. It was divided into non-overlapping time windows to investigate the amplitude dependence of natural frequencies and damping ratios. Four modes were identified by Bayesian Operational Modal Analysis (BAYOMA) where the first two modes are closely-spaced while the others are well-separated. The results show that there is an inverse trend between the natural frequencies and modal root-mean-square value (RMS) while the damping ratios show a positive correlation with the modal RMS.
| Original language | English |
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| Publication status | Published - 2019 |
| Externally published | Yes |
| Event | 13th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP 2019 - Seoul, Korea, Republic of Duration: May 26 2019 → May 30 2019 |
Conference
| Conference | 13th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP 2019 |
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| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 5/26/19 → 5/30/19 |
Bibliographical note
Publisher Copyright:© 13th International Conference on Applications of Statistics and Probability in Civil Engineering, ICASP 2019. All rights reserved.
ASJC Scopus Subject Areas
- Civil and Structural Engineering
- Statistics and Probability