Application of OMA technique to masonry slender towers: FEM updating and sensitivity analysis
Davide Li Rosi, Loredana Contrafatto, Salvatore Gazzo, Leopoldo Greco, Massimo Cuomo
download PDFAbstract. Bell towers are masonry slender structures prone to damage caused by vibrations due to human activities, such as motor-vehicle traffic and operating machines in building sites, to bells’ ringing and, of course, vulnerable to strong vibrations induced by earthquakes. Several studies with Operational Modal Analysis applications to masonry historical slender towers demonstrate that their modal properties are typical and recurrent and depend mainly on the geometric features determining mass distribution and on the boundary conditions due to adjacent buildings and subjacent foundation soil. In the paper a sensitivity analysis of modal frequency obtained by FEM eigenvalue analysis to the soil modelling approach is carried out. The case study is the historical bell tower of San Giuseppe in Aci Castello church. The natural frequencies of the tower, identified through OMA procedure are considered for comparison.
Keywords
OMA, Masonry, Bell Tower
Published online 3/17/2022, 6 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Davide Li Rosi, Loredana Contrafatto, Salvatore Gazzo, Leopoldo Greco, Massimo Cuomo, Application of OMA technique to masonry slender towers: FEM updating and sensitivity analysis, Materials Research Proceedings, Vol. 26, pp 587-592, 2023
DOI: https://doi.org/10.21741/9781644902431-95
The article was published as article 95 of the book Theoretical and Applied Mechanics
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] G. Milani, F. Clementi, Advanced Seismic Assessment of Four Masonry Bell Towers in Italy after Operational Modal Analysis (OMA) Identification, Int. J. Archit. Herit, 15:1 (2021) 157-186. https://doi.org/10.1080/15583058.2019.1697768
[2] M. Shakya, H. Varum, R. Vicente, A. Costa, Seismic vulnerability assessment methodology for slender masonry structures, Int. J. Archit. Herit., 12:7-8 (2018) 1297-1326. https://doi.org/10.1080/15583058.2018.1503368
[3] M. Valente, G. Milani, Effects of Geometrical Features on the Seismic Response of Historical Masonry Towers, J. Earthq. Eng., 22 (2018) 2-34. https://doi.org/10.1080/13632469.2016.1277438
[4] A. Shabani, M. Feyzabadi, M. Kioumarsi, Model updating of a masonry tower based on operational modal analysis: The role of soil-structure interaction, in Case Studies in Construction Materials 16 (2022) 1-18. https://doi.org/10.1016/j.cscm.2022.e00957
[5] S. Biondi, G. Camata, E. Candigliota, E. Spacone, C. Valente, Identificazione strutturale di una torre in muratura per la messa a punto del modello numerico, Conference paper XIII Convegno ANIDIS L’Ingegneria Sismica in Italia ANIDIS, Bologna (2009).
[6] G. Torelli, D. D’Ayala, M. Betti, G. Bartoli, Analytical and numerical seismic assessment of heritage masonry towers, Bulletin of Earthquake Engineering 18 (2020) 969-1008. https://doi.org/10.1007/s10518-019-00732-y
[7] A. Cabboi, C. Gentile, A. Saisi, From continuous vibration monitoring to FEM-based damage assessment: Application on a stone-masonry tower, Construction and Building Materials, 156 (2017) 252-265. https://doi.org/10.1016/j.conbuildmat.2017.08.160
[8] S. Imposa, M. Cuomo, L. Contrafatto, S. Mineo, S. Grassi, D. Li Rosi, M.S. Barbano, G. Morreale, M. Galasso, G. Pappalardo, Engineering geological and geophysical studies supporting FEA of historical buildings after dynamic identification, submitted to Bulletin of Engineering Geology and the Environment (2022).
[9] MIDAS FEA NX (2021), https://www.midasoft.com/
[10] S. Castorina, Sotto il piano del castello. Quattromila anni di presenza umana nella benna dell’escavatore, in Agorà IX (3) (2002), 16-20.
[11] S. Branca, M. Coltelli, G. Groppelli, F. Lentini, Geological map of Etna volcano, 1:50,000 scale. Italian Journal of Geosciences, 130:3 (2011) 265-291. https://doi.org/10.3301/IJG.2011.15
[12] D. Liberatore, L. Gambarotta, G.C. Beolchini, L. Binda, G. Magenes, S. Cocina, E. Lo Giudice, S. Scuderi, Tipologie Edilizie In Muratura del Comune Di Catania, in: D. Liberatore, (ed.), Progetto Catania: indagine sulla risposta sismica di due edifici in muratura, Gruppo Nazionale per la Difesa dai Terremoti, (2000), 3-22.
[13] L. Contrafatto, A. Lo Faro, S. Gazzo, A. Purrazzo, Factors affecting the seismic analysis of historical masonry structures: A Case on single nave church damaged during the 2009 L’Aquila earthquake, Journal of Architectural Engineering (2022) 10.1061/(ASCE)AE.1943-5568.0000556. https://doi.org/10.1061/(ASCE)AE.1943-5568.0000556
