Seismic performance of historic masonry buildings: A comparative analysis of equivalent frame and block-based methods
Many Italian historic buildings are located in earthquake-prone areas and, therefore, need effective seismic evaluations. Most widespread commercial codes are based on the Equivalent Frame Model (EFM). To investigate their reliability, particularly to assess the effect of tie-rod retrofitting interv...
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Elsevier
2024-12-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016824009311 |
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| author | Francesco Fabbrocino Carlo Olivieri Raimondo Luciano Generoso Vaiano Giuseppe Maddaloni Antonino Iannuzzo |
| author_facet | Francesco Fabbrocino Carlo Olivieri Raimondo Luciano Generoso Vaiano Giuseppe Maddaloni Antonino Iannuzzo |
| author_sort | Francesco Fabbrocino |
| collection | DOAJ |
| description | Many Italian historic buildings are located in earthquake-prone areas and, therefore, need effective seismic evaluations. Most widespread commercial codes are based on the Equivalent Frame Model (EFM). To investigate their reliability, particularly to assess the effect of tie-rod retrofitting interventions, the present research applies an EFM approach via 3Muri software to a detailed 3D digital model of Villa Vannucchi, a heritage building in southern Italy.The combined use of 3Muri for the 3D global behaviour and linear kinematic approaches for the 2D out-of-plane response shows the need for the installation of tie-rods. Looking at the 2D main facade, the effectiveness of 3Muri in capturing the beneficial effect of tie-rods is investigated against parametric analyses carried out with a standard limit analysis block-based method (BBM). Specifically, using the exact EFM’s discretization and boundary conditions, the 3Muri results are benchmarked against the BBM adopting two modelling strategies: BBM pushover analysis with the same modelling strategy and loading conditions used by 3Muri, and BBM tilting tests. With the first strategy, it is shown that BBM provides results in good agreement with 3Muri; however, these results are independent of the tie-rod tension and presence because of inappropriate modelling of loading conditions. Conversely, the second strategy overcomes this drawback by better capturing the positive influence of the tie-rods both in terms of collapse mechanisms and an improved base shear capacity. The results of this research suggest that limit analysis represents a key, useful, and viable tool that needs to be integrated with EFM results in order to better capture the real effectiveness of tie-rod strengthening interventions, allowing for more sustainable consolidation strategies. |
| format | Article |
| id | doaj-art-a046f53a2ffc4ba2ad856cb902a9fd10 |
| institution | Kabale University |
| issn | 1110-0168 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj-art-a046f53a2ffc4ba2ad856cb902a9fd102024-12-21T04:27:44ZengElsevierAlexandria Engineering Journal1110-01682024-12-01109359375Seismic performance of historic masonry buildings: A comparative analysis of equivalent frame and block-based methodsFrancesco Fabbrocino0Carlo Olivieri1Raimondo Luciano2Generoso Vaiano3Giuseppe Maddaloni4Antonino Iannuzzo5Department of Engineering, Telematic University Pegaso, Centro Direzionale ISOLA F2, Napoli, 80143, ItalyDepartment of Engineering, Telematic University Pegaso, Centro Direzionale ISOLA F2, Napoli, 80143, Italy; Corresponding author.Department of Engineering, Parthenope University of Naples, Napoli, 80133, ItalyDepartment of Engineering, Telematic University Pegaso, Centro Direzionale ISOLA F2, Napoli, 80143, ItalyDepartment of Engineering, University of Sannio, Piazza Roma 28, Benevento, 82100, ItalyDepartment of Engineering, University of Sannio, Piazza Roma 28, Benevento, 82100, ItalyMany Italian historic buildings are located in earthquake-prone areas and, therefore, need effective seismic evaluations. Most widespread commercial codes are based on the Equivalent Frame Model (EFM). To investigate their reliability, particularly to assess the effect of tie-rod retrofitting interventions, the present research applies an EFM approach via 3Muri software to a detailed 3D digital model of Villa Vannucchi, a heritage building in southern Italy.The combined use of 3Muri for the 3D global behaviour and linear kinematic approaches for the 2D out-of-plane response shows the need for the installation of tie-rods. Looking at the 2D main facade, the effectiveness of 3Muri in capturing the beneficial effect of tie-rods is investigated against parametric analyses carried out with a standard limit analysis block-based method (BBM). Specifically, using the exact EFM’s discretization and boundary conditions, the 3Muri results are benchmarked against the BBM adopting two modelling strategies: BBM pushover analysis with the same modelling strategy and loading conditions used by 3Muri, and BBM tilting tests. With the first strategy, it is shown that BBM provides results in good agreement with 3Muri; however, these results are independent of the tie-rod tension and presence because of inappropriate modelling of loading conditions. Conversely, the second strategy overcomes this drawback by better capturing the positive influence of the tie-rods both in terms of collapse mechanisms and an improved base shear capacity. The results of this research suggest that limit analysis represents a key, useful, and viable tool that needs to be integrated with EFM results in order to better capture the real effectiveness of tie-rod strengthening interventions, allowing for more sustainable consolidation strategies.http://www.sciencedirect.com/science/article/pii/S1110016824009311Seismic vulnerability assessmentHistorical masonry buildingsNonlinear static analysisEquivalent frame model (EFM)3MuriLimit analysis |
| spellingShingle | Francesco Fabbrocino Carlo Olivieri Raimondo Luciano Generoso Vaiano Giuseppe Maddaloni Antonino Iannuzzo Seismic performance of historic masonry buildings: A comparative analysis of equivalent frame and block-based methods Alexandria Engineering Journal Seismic vulnerability assessment Historical masonry buildings Nonlinear static analysis Equivalent frame model (EFM) 3Muri Limit analysis |
| title | Seismic performance of historic masonry buildings: A comparative analysis of equivalent frame and block-based methods |
| title_full | Seismic performance of historic masonry buildings: A comparative analysis of equivalent frame and block-based methods |
| title_fullStr | Seismic performance of historic masonry buildings: A comparative analysis of equivalent frame and block-based methods |
| title_full_unstemmed | Seismic performance of historic masonry buildings: A comparative analysis of equivalent frame and block-based methods |
| title_short | Seismic performance of historic masonry buildings: A comparative analysis of equivalent frame and block-based methods |
| title_sort | seismic performance of historic masonry buildings a comparative analysis of equivalent frame and block based methods |
| topic | Seismic vulnerability assessment Historical masonry buildings Nonlinear static analysis Equivalent frame model (EFM) 3Muri Limit analysis |
| url | http://www.sciencedirect.com/science/article/pii/S1110016824009311 |
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