System Identification and Seismic Assessment Modeling Implications for Italian School Buildings
Publication: Journal of Performance of Constructed Facilities
Volume 33, Issue 1
Abstract
Extensive damage to school buildings has been observed during past earthquakes in Italy, with the 2002 Molise earthquake resulting in the complete collapse of a school building, leading to numerous casualties. In this paper, data provided by instruments installed in a number of school buildings throughout Italy from both ambient vibration and triggered dynamic vibration following the 2016 Central Italy earthquake are compared with predictions of numerical models. This comparison of predicted and measured structural response characteristics is investigated to provide practicing engineers with further insight into and validation of the accuracy of typical modeling techniques compared with instrumented responses of numerous different building typologies subjected to different dynamic excitations. Initial comparisons demonstrate reasonable agreement between the numerically predicted modes of vibration and natural frequencies from ambient vibration measurements, with further numerical parametric studies exhibiting improved matching. Additional comparative analyses are considered to discuss the potential impacts on the seismic assessment of existing structures within a performance-based seismic assessment framework.
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Acknowledgments
The authors acknowledge the funding provided by the Centro di Geomorfologia Integrata per l’Area del Mediterraneo (CGIAM) and the European Centre for Training and Research in Earthquake Engineering (EUCENTRE). The authors also acknowledge the help of Matteo Moratti and Barbara Borzi, who assisted in the in situ surveying of the school buildings, and Fernando Bastos, who contributed to the postprocessing of the triggered recording of the building’s response during the Central Italy Earthquake.
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Journal of Performance of Constructed Facilities
Volume 33 • Issue 1 • February 2019
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©2018 American Society of Civil Engineers.
History
Received: Jan 23, 2018
Accepted: Jul 13, 2018
Published online: Nov 8, 2018
Published in print: Feb 1, 2019
Discussion open until: Apr 8, 2019
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