Identification of Fei-Tsui arch dam from both ambient and seismic response data

National Taiwan University Dept PhysLoh, Chin-HsiungChin-HsiungLohWu, Tsu-ShiuTsu-ShiuWu2006-11-142018-06-282006-11-142018-06-281996http://ntur.lib.ntu.edu.tw//handle/246246/2006111501254404This purpose of this paper is to study the dynamic characteristics of the Fei-Tsui arch dam using the seismic response data & the ambient vibration data. For the identification of dam properties from seismic response data, the multiple inputs from the abutment of the dam to represent the nonuniform excitations of seismic input motion are considered, & the ARX model is applied using the discrete-time linear filtering approach with least-squares approximation to identify the dynamic characteristics of the dam. The system modal dampings, natural frequencies & frequency response functions are identified. A comparison of the identified modal parameters is made among different seismic events. Post-earthquake safety evaluation of the dam can be made based on the identified model. Finally, the ambient vibration test of the dam is performed to identify the mode shapes along the dam crest.application/pdf1205496 bytesapplication/pdfzh-TWsystem identificationtime series analysisstructural dynamicsambient vibration.Identification of Fei-Tsui arch dam from both ambient and seismic response datajournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/2006111501254404/1/10000.pdf