Assessment of Historical Buildings via Ambient Vibration Measurements: Experiences on Bell-Towers
In the recent past, some proposals for new identification methods were formulated to handle current types of non-stationary excitation. A novelty of this approach is that identification is based solely on the properties of slowly modulated harmonics. This paper reports on some recent applications of ambient vibration testing over two ancient towers sited in Piedmont, Italy. The results of a structural identification from the signals constituted a first stage for the definition of a predictive model, which might prove useful for structural rehabilitation.
KeywordsModal Shape Frequency Response Function Torsional Mode Modal Component Ambient Vibration
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