Dynamic Testing and Structural Identification of the Hypo Bank Office Complex. I: Experiments
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Abstract
Nondestructive dynamic methods are a useful tool in structural engineering. Their purpose is twofold. First, they provide guidance on the validation of a mathematical model of the structure under investigation. Second, repeated tests over time can indicate the emergence of possible damage occurring during the structure’s lifetime. Recent technological progress has generated extremely accurate and reliable experimental methods, enabling a good estimate of dynamic behavior of a structural system. Although experimental techniques are now well-established, the interpretation of measurements still lags somewhat behind. This particularly concerns structural identification due to its nature of inverse problem. In addition, when identification techniques are applied to the study of real-world structures, additional obstacles arise given the complexity of the structural behavior, the inaccuracy of the analytical models used to interpret experiments, measurement errors, and incomplete field data. This study discusses some of these aspects with reference to a series of harmonic forced-vibration tests carried out on the new headquarters of the Hypo Bank (Tavagnacco, northeast Italy). The special structural typology of the tilted building and the complex distribution of the resisting structural members have made interesting, and at the same time quite complicated, the interpretation of the real dynamic behavior of the construction. The present paper (Part I) is devoted to the experimental programme. The use of the measured dynamic data in the calibration of numerical models of the Hypo Bank complex is presented and discussed in Part II.
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Acknowledgments
The author would especially like to acknowledge Dr. Gianni De Cecco (IN.AR.CO., Udine, Italy) for his interest in and support for this research. The author also would like to acknowledge the contributions to the research made by collaborators and students, in particular Drs. Antonio Colonnello, Francesco Polentarutti, Nicola Rovere, and Stefano Tonon. The collaboration of Dr. Michele Dilena is also gratefully appreciated.
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© 2011 American Society of Civil Engineers.
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Received: Dec 30, 2009
Accepted: Jan 14, 2011
Published online: Jan 18, 2011
Published in print: Dec 1, 2011
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