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Stochastic Dynamic Analysis of Cultural Heritage Towers up to Collapse

Laboratory of Engineering Mechanics, School of Civil Engineering, Aristotle University of Thessaloniki (AUTh), GR-54124 Thessaloniki, Greece
Laboratory of Testing and Materials, Department of Mechanics, National Technical University of Athens (NTUA), GR-15773 Athens, Greece
School of Civil Engineering, Democritus University of Thrace, GR-67100 Xanthi, Greece
Mercator Fellow, Friedrich-Alexander University (FAU), Erlangen-Nuremberg, 90762 Fürth, Germany
Author to whom correspondence should be addressed.
Academic Editor: Xavier Romão
Buildings 2021, 11(7), 296;
Received: 17 May 2021 / Revised: 30 June 2021 / Accepted: 1 July 2021 / Published: 7 July 2021
(This article belongs to the Special Issue Seismic Safety Assessment of Existing Constructions)
This paper deals with the seismic vulnerability of monumental unreinforced masonry (URM) towers, the fragility of which has not yet been sufficiently studied. Thus, the present paper fills this gap by developing models to investigate the seismic response of URM towers up to collapse. On mount Athos, Greece, there exist more than a hundred medieval towers, having served mainly as campaniles or fortifications. Eight representative towers were selected for a thorough investigation to estimate their seismic response characteristics. Their history and architectural features are initially discussed and a two-step analysis follows: (i) limit analysis is performed to estimate the collapse mechanism and the locations of critical cracks, (ii) non-linear explicit dynamic analyses are then carried out, developing finite element (FE) simulations, with cracks modelled as interfacial surfaces to derive the capacity curves. A meaningful definition of the damage states is proposed based on the characteristics of their capacity curves, with the ultimate limit state related to collapse. The onset of slight damage-state is characterised by the formation and development of cracks responsible for the collapse mechanism of the structure. Apart from these two, another two additional limit states are also specified: the moderate damage-state and the extensive one. Fragility and vulnerability curves are finally generated which can help the assessment and preservation of cultural heritage URM towers. View Full-Text
Keywords: unreinforced masonry towers; rocking response; damage states; fragility curves unreinforced masonry towers; rocking response; damage states; fragility curves
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MDPI and ACS Style

Kouris, E.-G.S.; Kouris, L.-A.S.; Konstantinidis, A.A.; Kourkoulis, S.K.; Karayannis, C.G.; Aifantis, E.C. Stochastic Dynamic Analysis of Cultural Heritage Towers up to Collapse. Buildings 2021, 11, 296.

AMA Style

Kouris E-GS, Kouris L-AS, Konstantinidis AA, Kourkoulis SK, Karayannis CG, Aifantis EC. Stochastic Dynamic Analysis of Cultural Heritage Towers up to Collapse. Buildings. 2021; 11(7):296.

Chicago/Turabian Style

Kouris, Emmanouil-Georgios S., Leonidas-Alexandros S. Kouris, Avraam A. Konstantinidis, Stavros K. Kourkoulis, Chris G. Karayannis, and Elias C. Aifantis. 2021. "Stochastic Dynamic Analysis of Cultural Heritage Towers up to Collapse" Buildings 11, no. 7: 296.

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