Scipediacontent: Scipediacontent moved page Draft Content 404944948 to Candela et al 2021a

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Scipediacontent moved page Draft Content 404944948 to Candela et al 2021a

Scipediacontent: Created page with "== Abstract == The cathedral of San Lorenzo is a Romanesque church sited in Viterbo (Lazio, Italy), founded in the XII century on a site characterized by a complex archaeolo..."

2021-11-30T13:21:10Z

Created page with "== Abstract == The cathedral of San Lorenzo is a Romanesque church sited in Viterbo (Lazio, Italy), founded in the XII century on a site characterized by a complex archaeolo..."

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== Abstract ==

The cathedral of San Lorenzo is a Romanesque church sited in Viterbo (Lazio, Italy),
founded in the XII century on a site characterized by a complex archaeological stratification.
The building is a fine example of religious monumental architecture, built upon well-laid
masonry walls, made of squared blocks of piperine stone and very thin layers of mortar.
Its basilica-shaped plant is divided into three aisles by two rows of marble columns connected
by arches. The structure, that has undergone many transformations during the centuries, was
severely damaged during the II world war and a restoration executed in 1947 has brought it
back to its romanesque appearance.
Currently, a peculiar crack pattern can be observed in the structures, which is mainly
characterized by recurring sub-vertical fissures appearing on the keystones of the arches that
run along the central nave.
The purpose of this paper is to illustrate the diagnostic path which enabled to rule out the most
common damage mechanisms, as a main cause of the damages, and led to the identification of
the most probable cause for the instabilities.
A critical reading of the geometry of the cracks, supported by several static verifications,
resulted in the exclusion of mechanisms associated with the arches thrust actions or with the
compressive stresses in the walls. The hypothesis of soil settlement is rejected by the mechanical
characteristics of the foundation soil, provided from a previous study.
An original diagnostic hypothesis of tensile stresses induced by thermal variations is
formulated and a fully coupled temperature-displacement analysis is carried out, with the FE
software Abaqus, to investigate the effects of the thermal gradient on structures behavior.

== Full document ==
<pdf>Media:Draft_Content_404944948p771.pdf</pdf>
== References ==

[1] Benvenuto, E., La scienza delle costruzioni: e il suo sviluppo storico. Firenze: Sansoni (1981).

[2] Sparacio, R., La scienza ed i tempi del costruire, UTET Università (2012).

[3] Heyman, J., The Stone Skeleton: Structural Engineering of Masonry Architecture, Cambridge: Cambridge University Press (1995).

[4] Valtieri, S., Bentivoglio, E., Viterbo nel Rinascimento, (2012).

[5] Egidi P., L’Archivio della cattedrale di Viterbo. In: Bollettino dell’Istituto Storico Italiano e Archivio Muratoriano, Roma: Sede dell’Istituto Palazzo dei Lincei 28 (1906), pp 7-381.

[6] Mastrodicasa, S., Dissesti statici delle Strutture Edilizie. Milano: Hoepli, (2006).

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Scipediacontent: Scipediacontent moved page Draft Content 404944948 to Candela et al 2021a

Scipediacontent: Created page with "== Abstract == The cathedral of San Lorenzo is a Romanesque church sited in Viterbo (Lazio, Italy), founded in the XII century on a site characterized by a complex archaeolo..."