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The seismic sequence of 2016–2017 in Central Italy: a numerical insight on the survival of the Civic Tower in Amatrice

  • A. Jain
  • M. Acito
  • C. ChesiEmail author
  • E. Magrinelli
Original Research
  • 47 Downloads

Abstract

This work is aimed at the numerical interpretation of the evolution of damage and collapses observed on the Civic Tower of Amatrice, caused by the main events of the seismic sequence of 2016 in the Apennine area of Central Italy. In particular, the study considers the response of the tower with reference to the two main events, occurred on August 24th and October 30th, 2016 respectively. Non-linear dynamic analyses were carried out by developing a finite element model and the behaviour of the tower was investigated with reference to the damage and partial collapses produced by the main events. In dynamic numerical analyses, the accelerograms corresponding to the main seismic events obtained with the study of the site effects were used as seismic input. Moreover, studies have been carried out to understand if and which of the interventions of reinforcement/seismic improvement, realized at the beginning of the years ‘80, have been determinant to limit the damage, avoiding the complete collapse of the tower. The results of the study, on the one hand, allow to highlight a good correspondence between the evolution of the actual damage observed on the tower and the damage assessed by numerical analyses thus demonstrating the validity of the numerical models set up for the analyses. On the other hand, however, they have made it possible to underline how the presence of the improved material and structural reinforcement interventions carried out at the beginning of the years ‘80 have contributed to avoid the complete collapse of the tower.

Keywords

Masonry Tower Seismic sequence Finite element modelling Nonlinear dynamic simulations Rehabilitation interventions ABAQUS Civic Tower Amatrice Italy 

Notes

Acknowledgements

The study of the local amplification of ground motion was carried out with the collaboration of Dr. Floriana Pergalani and Dr. Massimo Compagnoni, Politecnico di Milano, also with the support of Dr. Alberto Tento, INGV. We acknowledge the CINECA award under the ISCRA initiative, for the availability of high-performance computing resources and support.

References

  1. Abaqus (2016) User’s manual ABAQUS®. http://130.149.89.49:2080/v2016/books/usi/default.htm
  2. Acito M, Binda L, Cardani G, Guedes J, Miranda L (2008) Experimental and numerical study on the application of the flat-jack tests to masonry walls, structural analysis of historic construction: preserving safety and significance. In: Proceedings of the 6th international conference on structural analysis of historic construction (SAHC08) vol 2, pp 875–883Google Scholar
  3. Acito M, Bocciarelli M, Chesi C, Milani G (2014) Collapse of the clock tower in Finale Emilia after the May 2012 Emilia Romagna earthquake sequence: Numerical insight. Eng Struct 72:70–91CrossRefGoogle Scholar
  4. Acito M, Chesi C, Milani G, Torri S (2016) Collapse analysis of the Clock and Fortified towers of Finale Emilia, Italy, after the 2012 Emilia Romagna seismic sequence: lesson learned and reconstruction hypotheses. Constr Build Mater 115:193–213CrossRefGoogle Scholar
  5. Autodesk (2018) Autocad. https://knowledge.autodesk.com/
  6. Bertolesi E, Milani G, Lopane FD, Acito M (2017) Augustus Bridge in Narni (Italy): seismic vulnerability assessment of the still standing part, possible causes of collapse, and importance of the Roman concrete infill in the seismic-resistant behavior. Int J Archit Herit 11–5:717–746Google Scholar
  7. Biolzi L (1988) Evaluation of compressive strength of masonry walls by limit analysis. ASCE J Struct Eng 114(10):2179–2189CrossRefGoogle Scholar
  8. Bocciarelli M (2017) On the behavior factor of masonry towers. Soil Dyn Earthq Eng 101:81–89CrossRefGoogle Scholar
  9. Bocciarelli M, Barbieri G (2017) A numerical procedure for the pushover analysis of masonry towers. Soil Dyn Earthq Eng 93:162–171CrossRefGoogle Scholar
  10. Bolhassani M, Hamid AA, Lau ACW, Moon F (2015) Simplified micro modeling of partially grouted masonry assemblages. Constr Build Mater 83:159–173CrossRefGoogle Scholar
  11. Cantini L, Parisi MA, Tardini C, Cardani G (2016) The analysis and the diagnostic investigation of tuff masonry structures of a historic villa in Naples. In: Modena C, da Porto F, Valluzzi MR (eds) Brick and block masonry. Taylor & Francis Group, LondonGoogle Scholar
  12. Casolo S (2001) Significant ground motion parameters for evaluation of the seismic performance of slender masonry towers. J Earthq Eng 5–2:187–204Google Scholar
  13. Casolo S (2017) A numerical study on the cumulative out-of-plane damage to church masonry façades due to a sequence of strong ground motions. Earthq Eng Struct Dyn 46–15:2717–2737CrossRefGoogle Scholar
  14. Casolo S, Milani G, Uva G, Alessandri C (2013) Comparative seismic vulnerability analysis on ten masonry towers in the coastal Po Valley in Italy. Eng Struct 49:465–490CrossRefGoogle Scholar
  15. Casolo S, Diana V, Uva G (2017) Influence of soil deformability on the seismic response of a masonry tower. Bull Earthq Eng 15:1991–2014CrossRefGoogle Scholar
  16. Casolo S, Biolzi L, Carvelli V, Barbieri G (2019) Testing masonry blockwork panels for orthotropic shear strength. Constr Build Mater 214:74–92CrossRefGoogle Scholar
  17. Comune di Amatrice (2019) Notizie storiche su Amatrice. https://www.comune.amatrice.rieti.it/arte-e-cultura/
  18. INGV (2017) La sequenza sismica in Italia centrale: un primo quadro interpretativo dell’INGV https://ingvterremoti.wordpress.com
  19. Milana G, Cultrera G, Bordoni P et al (2019) Local site effects estimation at Amatrice (Central Italy) through seismological methods. Bull Earthq Eng.  https://doi.org/10.1007/s10518-019-00587-3 CrossRefGoogle Scholar
  20. MIT-Ministero delle Infrastrutture e dei Trasporti (2018) Aggiornamento delle Norme tecniche per le costruzioni. Supplemento ordinario alla Gazzetta Ufficiale n. 42 del 20/02/2018 – Serie GeneraleGoogle Scholar
  21. MIT-Ministero delle Infrastrutture e dei Trasporti (2019) Istruzioni per l’applicazione dell’Aggiornamento delle Norme Tecniche per le Costruzioni di cui al DM 17/01/2018. Supplemento ordinario alla Gazzetta Ufficiale n. 35 del 11/02/2019 – Serie GeneraleGoogle Scholar
  22. Modena C, da Porto F, Valluzzi MR, Munari M (2003) Criteria and technologies for the structural repair and strengthening of architectural heritage. International Journal of 3R’S 4: 606-621Google Scholar
  23. Resta M, Fiore A, Monaco P (2013) Non-linear finite element analysis of masonry towers by adopting the damage plasticity constitutive model. Adv Struct Eng 16–5:791–803CrossRefGoogle Scholar
  24. Tiberti S, Acito M, Milani G (2016) Comprehensive FE numerical insight into Finale Emilia Castle behaviour under 2012 Emilia Romagna seismic sequence: damage causes and seismic vulnerability mitigation hypothesis. Eng Struct 117:397–421CrossRefGoogle Scholar

Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Politecnico di MilanoMilanItaly

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