Engineering Geological and Geophysical Studies Supporting Finite Element Analysis of Historical Buildings after Dynamic Identification
Resonance frequencies of a masonry bell tower were estimated by means of ambient noise measurements and compared with those computed by using fixed base, Winkler, and FE numerical, including subsoil. Given the geological complexity that characterizes the subsurface of the analyzed area, despite the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Geosciences |
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| Online Access: | https://www.mdpi.com/2076-3263/13/3/84 |
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| author | Sebastiano Imposa Massimo Cuomo Loredana Contrafatto Simone Mineo Sabrina Grassi Davide Li Rosi Maria Serafina Barbano Gabriele Morreale Mirko Galasso Giovanna Pappalardo |
| author_facet | Sebastiano Imposa Massimo Cuomo Loredana Contrafatto Simone Mineo Sabrina Grassi Davide Li Rosi Maria Serafina Barbano Gabriele Morreale Mirko Galasso Giovanna Pappalardo |
| author_sort | Sebastiano Imposa |
| collection | DOAJ |
| description | Resonance frequencies of a masonry bell tower were estimated by means of ambient noise measurements and compared with those computed by using fixed base, Winkler, and FE numerical, including subsoil. Given the geological complexity that characterizes the subsurface of the analyzed area, despite the presence of massive volcanic outcrops near the bell tower, we carried out a geophysical characterization of the subsoil by using active and passive seismic surveys. These surveys have identified a soft substrate underneath the construction; for this reason, the dynamic identification of the tower was performed, including the interaction with the soil. The resonance frequencies of the masonry bell tower computed by the models are very similar to those obtained using ambient noise. Results suggest that building resonance frequencies, estimated by ambient noise surveys, can be used because of their reliability especially when quick analyses are required at historical buildings located in seismically active areas needing plan actions to reduce their vulnerability. Moreover, such analyses, being performed on samplings acquired within the structure, allow for estimating its dynamic response, taking into account the effect of subsurface characteristics as well. |
| first_indexed | 2024-03-11T06:29:05Z |
| format | Article |
| id | doaj.art-694669e2195c4efd95069376f87f4945 |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-03-11T06:29:05Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-694669e2195c4efd95069376f87f49452023-11-17T11:20:00ZengMDPI AGGeosciences2076-32632023-03-011338410.3390/geosciences13030084Engineering Geological and Geophysical Studies Supporting Finite Element Analysis of Historical Buildings after Dynamic IdentificationSebastiano Imposa0Massimo Cuomo1Loredana Contrafatto2Simone Mineo3Sabrina Grassi4Davide Li Rosi5Maria Serafina Barbano6Gabriele Morreale7Mirko Galasso8Giovanna Pappalardo9Department of Biological, Geological and Environmental Sciences, University of Catania, 95129 Catania, ItalyDepartment of Civil Engineering and Architecture, University of Catania, 95125 Catania, ItalyDepartment of Civil Engineering and Architecture, University of Catania, 95125 Catania, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Catania, 95129 Catania, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Catania, 95129 Catania, ItalyDepartment of Civil Engineering and Architecture, University of Catania, 95125 Catania, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Catania, 95129 Catania, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Catania, 95129 Catania, ItalyDepartment of Civil Engineering and Architecture, University of Catania, 95125 Catania, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Catania, 95129 Catania, ItalyResonance frequencies of a masonry bell tower were estimated by means of ambient noise measurements and compared with those computed by using fixed base, Winkler, and FE numerical, including subsoil. Given the geological complexity that characterizes the subsurface of the analyzed area, despite the presence of massive volcanic outcrops near the bell tower, we carried out a geophysical characterization of the subsoil by using active and passive seismic surveys. These surveys have identified a soft substrate underneath the construction; for this reason, the dynamic identification of the tower was performed, including the interaction with the soil. The resonance frequencies of the masonry bell tower computed by the models are very similar to those obtained using ambient noise. Results suggest that building resonance frequencies, estimated by ambient noise surveys, can be used because of their reliability especially when quick analyses are required at historical buildings located in seismically active areas needing plan actions to reduce their vulnerability. Moreover, such analyses, being performed on samplings acquired within the structure, allow for estimating its dynamic response, taking into account the effect of subsurface characteristics as well.https://www.mdpi.com/2076-3263/13/3/84bell towerearthquakeapplied geophysicsgeomechanical parametersdynamic response |
| spellingShingle | Sebastiano Imposa Massimo Cuomo Loredana Contrafatto Simone Mineo Sabrina Grassi Davide Li Rosi Maria Serafina Barbano Gabriele Morreale Mirko Galasso Giovanna Pappalardo Engineering Geological and Geophysical Studies Supporting Finite Element Analysis of Historical Buildings after Dynamic Identification Geosciences bell tower earthquake applied geophysics geomechanical parameters dynamic response |
| title | Engineering Geological and Geophysical Studies Supporting Finite Element Analysis of Historical Buildings after Dynamic Identification |
| title_full | Engineering Geological and Geophysical Studies Supporting Finite Element Analysis of Historical Buildings after Dynamic Identification |
| title_fullStr | Engineering Geological and Geophysical Studies Supporting Finite Element Analysis of Historical Buildings after Dynamic Identification |
| title_full_unstemmed | Engineering Geological and Geophysical Studies Supporting Finite Element Analysis of Historical Buildings after Dynamic Identification |
| title_short | Engineering Geological and Geophysical Studies Supporting Finite Element Analysis of Historical Buildings after Dynamic Identification |
| title_sort | engineering geological and geophysical studies supporting finite element analysis of historical buildings after dynamic identification |
| topic | bell tower earthquake applied geophysics geomechanical parameters dynamic response |
| url | https://www.mdpi.com/2076-3263/13/3/84 |
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