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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

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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

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dc.contributor.author Bertolesi, Elisa es_ES
dc.contributor.author Milani, Gabriele es_ES
dc.contributor.author Lopane, Fulvio Domenico es_ES
dc.contributor.author Acito, Maurizio es_ES
dc.date.accessioned 2018-06-03T04:24:54Z
dc.date.available 2018-06-03T04:24:54Z
dc.date.issued 2017 es_ES
dc.identifier.issn 1558-3058 es_ES
dc.identifier.uri http://hdl.handle.net/10251/103260
dc.description.abstract [EN] The final results of advanced FE analyses performed on a Roman arch bridge, namely the Augustus Bridge (Ponte di Augusto) in Narni, center Italy are presented. The bridge, one of the most impressive Roman artworks, has been injured by several traumatic events during the millennia, the result of which is its present ruined condition. The aims are manifold, starting from a better understanding of the causes at the base of the partial collapse occurred on the central pier, passing through a seismic assessment of the ruined still standing part and ending with a discussion on the role played by Roman concrete on the stability against horizontal actions. An advanced material model exhibiting damage, plastic deformation, and softening in both tension and compression is adopted for Roman concrete. Both the case of a foundation settlement of the central pier and the application of a seismic excitation are investigated, by means of nonlinear static and nonlinear dynamic analyses. Numerical simulations are carried out within the FE code ABAQUS by means of detailed 3D models, using historical documentation and previous results of the latest research carried out on materials, assuming realistic models on both the uniaxial stress-strain relationships under nonlinear load-unload conditions by using independent damage parameters in tension and compression, and the multiaxial behavior ruled by a regularized Drucker-Prager strength criterion. The methodological approach turns out to be potentially valid for all existing Roman bridges. Results highlight the vulnerability of the ruins, that the collapse of the central part was probably due to settlement of the central pier and that Roman concrete plays a crucial role in increasing the stability against earthquake actions. es_ES
dc.language Inglés es_ES
dc.publisher Taylor & Francis es_ES
dc.relation.ispartof International Journal of Architectural Heritage es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Earthquake es_ES
dc.subject Masonry arch Roman bridges es_ES
dc.subject Nonlinear dynamic analysis es_ES
dc.subject Nonlinear static analysis (pushover) es_ES
dc.subject Roman concrete es_ES
dc.subject Spectral response analysis es_ES
dc.title 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 es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1080/15583058.2017.1300712 es_ES
dc.rights.accessRights Abierto es_ES
dc.date.embargoEndDate 2018-06-08 es_ES
dc.description.bibliographicCitation 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. International Journal of Architectural Heritage. 11(5):717-746. doi:10.1080/15583058.2017.1300712 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1080/15583058.2017.1300712 es_ES
dc.description.upvformatpinicio 717 es_ES
dc.description.upvformatpfin 746 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 11 es_ES
dc.description.issue 5 es_ES
dc.relation.pasarela S\357071 es_ES


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