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Earthquakes and Structures Volume 11, Number 6, December 2016 , pages 1043-1060 DOI: https://doi.org/10.12989/eas.2016.11.6.1043 |
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Dynamic field monitoring data analysis of an ancient wooden building in seismic and operational environments |
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Mengning Lyu, Xinqun Zhu and Qingshan Yang
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| Abstract | ||
| The engineering background of this article is an ancient wooden building with extremely high historic and cultural values in Tibet. A full understanding of the dynamic behaviour of this historic building under in-service environments is the basis to assess the condition of the structure, especially its responses to earthquake, environmental and operational loading. A dynamic monitoring system has been installed in the building for over one year and the large amounts of high quality data have been obtained. The paper aims at studying the dynamic behaviour of the wooden building in seismic and operational conditions using the field monitoring data. Specifically the effects of earthquake and crowd loading on the structure´s dynamic response are investigated. The monitoring data are decomposed into principal components using the Singular Spectrum Analysis (SSA) technique. The relationship between the average acceleration amplitude and frequencies of the principle components and operational conditions has been discussed. One main contribution is to understand the health condition of complex ancient building based on large databases collected on the field. | ||
| Key Words | ||
| dynamic monitoring system; historic building; seismic and operational environments; data analysis | ||
| Address | ||
| Mengning Lyu, Qingshan Yang: Beijing´s Key Laboratory of Structural Wind Engineering and Urban Wind Environment, School of Civil Engineering, Beijing Jiaotong University, Beijing, China Mengning Lyu, Xinqun Zhu: Institute for Infrastructure Engineering, Western Sydney University, Penrith, Sydney, NSW 2751, Australia | ||