PSI - Issue 29

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 29 (2020) 149–156

© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti Abstract The paper deals with the documentationproject of the Rocca della Verruca, a medieval fortress built on top of oneof the peaks of the PisanMountainsto control the valley of the Arno river; the fortress was fortified in modern times by the Florentines andwas visited by important architects suchas Giulianoda Sangallo andLeonardo da Vinci. The path of knowledge undertaken in the documentation of the structures, which are now in a sta te of ruin, are a imed at analyzing the superficial and structural conservative stateof thefortress. The surveyoperations were carriedout using the most recent digital instruments: laser scanner, aeria l photogrammetry andground photogrammetry. The resulting three-dimensionalmodel, highly reliable, was useful for carryingout analyzes on the structure, from morphological to diagnostic and structural ones. A careful mapping of the cracking framework was performed and through the analysis of the real basedmodels coming from therelief of the wa ll deformations; thecognitive overviewhas made it possible to clarify the state of structural conservationof the building. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti Keywords: : Verruca; Fortification; Digital survey; Diagnostic analys 1. Introduction The study that is going to be presented is part of a research project whichpurpose is to understand the heritagevalue of the Verruca fortress and its sta te of conservation. To better evaluate these aspects, it was necessary to undertake a cognitive pa th that, through historical, morphological, diagnostic and structural investiga tions, was able to provide a Art Collections 2020, Safety Issue (ARCO 2020, SAFETY) Digital survey for the structural analysis of the Verruca fortress Giovanni Pancani a , Matteo Bigongiari a * a Department of Architecture (DIDA), University of Florence, Via della Mattonaia, 14 - 50121 Firenze (FI)

* Corresponding author. Tel.: +39-333-407-4475 E-mail address: matteo.bigongiari@unifi.it

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti 10.1016/j.prostr.2020.11.151