Abstract

In the Italian seismic scenario, and beyond, interventions on existing buildings focused on the evaluation and reduction of seismic risk of cultural heritage have gained more and more importance in the engineering field. Therefore, for the designer it becomes increasingly useful to have a methodology that allows to carry out, in the study of an existing structure behavior, the vulnerability assessment of both the actual state and the design state, evaluating the adequacy of potential intervention of seismic improvement. In this paper some phases of this methodology are presented in the context of the restoration work started in November 2017, and currently in progress, of the historical building of Procuratie Vecchie in Piazza San Marco in Venice, with particular focus on the consolidation intervention of the timber floors which satisfy the conservation requirements imposed by the Superintendence of Venice. Actually, the influence of floor diaphragms on structural behavior of existing masonry building subjected to seismic action is critically discussed with particular reference to the effects of in-plane stiffness of floors on the seismic distribution of forces on lateral walls and on the out–of–plane mechanism of the walls.

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References

[1] DPCM 2011: Direttiva P.C.M. 12 ottobre 2007 per la valutazione e riduzione del rischio sismico del patrimonio culturale tutelato, S.O. n. 25 alla G.U. n. 24 del 29 gennaio 2008, update 9 febbraio 2011, (GU n. 47 del 26.02.11), (in Italian)

[2] CSLLPP. Circolare 02 febbraio 2009 n. 617 Istruzioni per l’applicazione delle “Nuove norme tecniche per le costruzioni” di cui al DM 14 gennaio 2008. Gazzetta Ufficiale della Repubblica Italiana n. 47, Supplemento Ordinario n. 27. (In Italian)

[3] EC8: EN 1998-3:2005 Eurocode 8: Design of structures for earthquake resistance. Part 3- Assessment and retrofitting of buildings

[4] MIT - Ministro delle infrastrutture e dei trasporti, G.U. S.O. n 42, 20 February 2018. NTC (2018) Aggiornamento delle «Norme tecniche per le costruzioni», decree on 17 January 2008; 2018. (in Italian)

[5] Midas Gen 2020 User’s guide, getting started & tutorials

[6] Bellin, S. Il caso studio delle Procuratie Vecchie di Venezia: un esempio di recupero di un bene architettonico vincolato con valutazioni sulla rigidezza di piano, Master Thesis, University of Padova, Civil, Environmental and Architectural Engineering Department, Academic year 2017-2018

[7] MIT - Ministro delle infrastrutture e dei trasporti Circ. C.S.Ll. 21 gennaio 2019 n. 7. Istruzioni per l’applicazione dell’≪Aggiornamento delle “Norme tecniche per le costruzioni”≫ di cui al decreto ministeriale 17 gennaio 2018; 2019. (in Italian)

[8] Gasparini, A., Serafini, G., Scotta, R., Vitaliani, R., Saetta, A. Retrofitting of ‘La Fenice’ Theatre for Seismic Loads. ConMat’05 3rd Int. Conf. on Construction Materials: Performance, Innovations and Structural Implications, Vancouver, Canada, August 22-24, 2005

[9] EN 1995-1-1:2004 (2004) Eurocode 5: Design of timber structures - Part 1-1: General -Common rules and rules for buildings.

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Published on 30/11/21
Submitted on 30/11/21

Volume Seismic analysis and retrofit, 2021
DOI: 10.23967/sahc.2021.286
Licence: CC BY-NC-SA license

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