Seismic Assessment and Retrofitting of an Historical Masonry Building Damaged during the 2016 Centro Italia Seismic Event
The preservation and definition of the correct retrofitting interventions of historic masonry buildings represents a relevant topic nowadays, especially in a country characterized by high seismicity zones. Considering the Italian Cultural Heritage, most of these buildings are constructed in ancient...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/22/11789 |
| _version_ | 1797465917222813696 |
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| author | Marco Zucca Emanuele Reccia Nicola Longarini Antonio Cazzani |
| author_facet | Marco Zucca Emanuele Reccia Nicola Longarini Antonio Cazzani |
| author_sort | Marco Zucca |
| collection | DOAJ |
| description | The preservation and definition of the correct retrofitting interventions of historic masonry buildings represents a relevant topic nowadays, especially in a country characterized by high seismicity zones. Considering the Italian Cultural Heritage, most of these buildings are constructed in ancient unreinforced masonry (URM) and showed a high level of vulnerability during the recent 2009 (L’Aquila), 2012 (Emilia Romagna) and 2016 (Centro Italia) earthquakes. In this paper, the seismic assessment of an historic masonry building damaged during 2016 Centro Italia seismic event is presented considering different types of retrofitting interventions. Starting from the results obtained by the post-earthquake survey, different finite element models have been implemented to perform linear and non-linear analyses useful to understand the seismic behaviour of the building and to define the appropriate retrofitting interventions. In particular, reinforced plaster layer and cement-based grout injections have been applied in each masonry wall of the building in order to improve their horizontal load-bearing capacity, and an additional wall made with Poroton blocks and M10 cement mortar has been built adjacent to the central stairwell. In addition, in view of the need to replace the roof seriously damaged during the seismic event, a cross-laminated roof solution characterized by a thickness equal to 14 cm (composed by seven layers, each 2 cm thick) has been proposed. The results show that the proposed retrofitting interventions have led to a significant improvement in the seismic behaviour of the building. |
| first_indexed | 2024-03-09T18:29:19Z |
| format | Article |
| id | doaj.art-65d33a340cd64f4b8dc695f282afa633 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T18:29:19Z |
| publishDate | 2022-11-01 |
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| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-65d33a340cd64f4b8dc695f282afa6332023-11-24T07:40:57ZengMDPI AGApplied Sciences2076-34172022-11-0112221178910.3390/app122211789Seismic Assessment and Retrofitting of an Historical Masonry Building Damaged during the 2016 Centro Italia Seismic EventMarco Zucca0Emanuele Reccia1Nicola Longarini2Antonio Cazzani3Department of Civil, Environmental Engineering and Architecture, University of Cagliari, 09123 Cagliari, ItalyDepartment of Civil, Environmental Engineering and Architecture, University of Cagliari, 09123 Cagliari, ItalyDepartment of Architecture, Built Environment and Construction Engineering, Politecnico di Milano, 20133 Milano, ItalyDepartment of Civil, Environmental Engineering and Architecture, University of Cagliari, 09123 Cagliari, ItalyThe preservation and definition of the correct retrofitting interventions of historic masonry buildings represents a relevant topic nowadays, especially in a country characterized by high seismicity zones. Considering the Italian Cultural Heritage, most of these buildings are constructed in ancient unreinforced masonry (URM) and showed a high level of vulnerability during the recent 2009 (L’Aquila), 2012 (Emilia Romagna) and 2016 (Centro Italia) earthquakes. In this paper, the seismic assessment of an historic masonry building damaged during 2016 Centro Italia seismic event is presented considering different types of retrofitting interventions. Starting from the results obtained by the post-earthquake survey, different finite element models have been implemented to perform linear and non-linear analyses useful to understand the seismic behaviour of the building and to define the appropriate retrofitting interventions. In particular, reinforced plaster layer and cement-based grout injections have been applied in each masonry wall of the building in order to improve their horizontal load-bearing capacity, and an additional wall made with Poroton blocks and M10 cement mortar has been built adjacent to the central stairwell. In addition, in view of the need to replace the roof seriously damaged during the seismic event, a cross-laminated roof solution characterized by a thickness equal to 14 cm (composed by seven layers, each 2 cm thick) has been proposed. The results show that the proposed retrofitting interventions have led to a significant improvement in the seismic behaviour of the building.https://www.mdpi.com/2076-3417/12/22/11789masonry buildingCentro Italia earthquakeseismic behaviorretrofitting interventions |
| spellingShingle | Marco Zucca Emanuele Reccia Nicola Longarini Antonio Cazzani Seismic Assessment and Retrofitting of an Historical Masonry Building Damaged during the 2016 Centro Italia Seismic Event Applied Sciences masonry building Centro Italia earthquake seismic behavior retrofitting interventions |
| title | Seismic Assessment and Retrofitting of an Historical Masonry Building Damaged during the 2016 Centro Italia Seismic Event |
| title_full | Seismic Assessment and Retrofitting of an Historical Masonry Building Damaged during the 2016 Centro Italia Seismic Event |
| title_fullStr | Seismic Assessment and Retrofitting of an Historical Masonry Building Damaged during the 2016 Centro Italia Seismic Event |
| title_full_unstemmed | Seismic Assessment and Retrofitting of an Historical Masonry Building Damaged during the 2016 Centro Italia Seismic Event |
| title_short | Seismic Assessment and Retrofitting of an Historical Masonry Building Damaged during the 2016 Centro Italia Seismic Event |
| title_sort | seismic assessment and retrofitting of an historical masonry building damaged during the 2016 centro italia seismic event |
| topic | masonry building Centro Italia earthquake seismic behavior retrofitting interventions |
| url | https://www.mdpi.com/2076-3417/12/22/11789 |
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