Abstract
Historic masonry buildings are often heavily damaged by earthquakes, resulting in huge losses of cultural heritage. Several studies have shown the effectiveness of seismic vulnerability mitigation strategies based on base isolation systems (BISs), which allow damage to masonry buildings and their contents to be significantly reduced or even avoided. This paper presents preparatory activities and base isolation project for seismic retrofitting of an existing strategic masonry building with historical-architectural value, which is located in Perugia (Italy) and hosts the headquarters of Umbria Region, Perugia public prosecutor’s office and some offices of the Italian Ministry of Infrastructure and Transportation. The building consists of five floor levels and has an L-shaped plan with size equal to approximately 1600 m2. The structure was built in the early 1950s using different materials and construction technologies. The BIS design started from a historical investigation on the original design, fabrication and modifications of the masonry building, based on archival data and available literature. An extensive investigation was carried out through on-site experimental tests on both subsoil and masonry structure, as well as geometric surveys with laser scanner technology, allowing an excellent knowledge of the building (including the development of a building information model) and the calibration of two three-dimensional structural models based on both finite element method (FEM) and equivalent frame method (EFM). The structural characteristics, historical value and public function of the building delineate a case study with considerable importance in the field of seismic isolation of existing masonry buildings.
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Acknowledgements
Authors would like to acknowledge Eng. Francesco Renò MSc, for the contribution given to this work during his graduation thesis.
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Zordan, T., Romano, A., Parisi, F. (2023). Seismic Base Isolation of a Strategic Historic Masonry Building. In: Cimellaro, G.P. (eds) Seismic Isolation, Energy Dissipation and Active Vibration Control of Structures. WCSI 2022. Lecture Notes in Civil Engineering, vol 309. Springer, Cham. https://doi.org/10.1007/978-3-031-21187-4_44
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DOI: https://doi.org/10.1007/978-3-031-21187-4_44
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