Abstract

The seismic events that occurred in central Italy in 2016 severely damaged the rich cultural heritage system present in the area hit by the earthquake. Particularly significant is the situation of the Marche Region, here it is necessary to intervene quickly and effectively in order to preserve and secure the damaged historical architectural heritage. Following the agreement signed in 2019 between the administration of the Municipality of San Ginesio and the Marche Polytechnic University, a collaboration has been established, which is the basis of the present research work, aimed at studying and deepening the possible actions to be undertaken to be able to repair, preserve and enhance the medieval walls of the city. The city walls, dating from the fourteenth century A.D., almost completely surround the historic center of the city and are characterized by the presence of a large part of the ancient fortifications such as towers, access doors, defensive walkways, loopholes, etc. Since there is no complete survey of the planimetric configuration and of the elevations of the medieval walls, updated to the situation created after the earthquake, the first phase of the research focused on data acquisition. Combining DJI Spark MMA1 photogrammetric UAV images with cloud point by Mobile laser SLAM Kaarta Stencil, the 3D-dimensional modelling of the walls was obtained with the accuracy related to the output scale of 1:200 and with a detail and complexity useful for the following conservative analysis. Once the data was acquired and processed, it was possible to carry out a complete analysis of the walls structure, identifying the materials and construction techniques, the state of preservation of the materials, the damage situation to the structures, the various construction phases with the consequent relative dating. The analytical phase was concluded, therefore, with the identification and cataloging of the types of walls present. Each of these has been characterized both from a typological and a technical construction point of view, defining the wall quality (IQM) and the consequent mechanical parameters through the calculation process of the Wall Quality Index.

Full document

The PDF file did not load properly or your web browser does not support viewing PDF files. Download directly to your device: Download PDF document

References

[1] Allevi F., Il balcone della Sibilla: San Ginesio fra cronaca e storia. A. Giuffrè, (1960).

[2] Salvi G., Memorie storiche di Sanginesio (Marche) in relazione con le terre circonvicine, Tipografia Savini, (1889).

[3] Cortella F., Da incastellamento a città: le mura urbane. In: P.F. Pistilli et al. (Eds.): La Chiesa Collegiata di San Ginesio. Una storia ritrovata, Centro Internazionale Studi Gentiliani – Quaderni (2012), pp. 13–48.

[4] https://www.dji.com/it (accessed on 25.05.2019)

[5] https://www.kaarta.com/products/stencil-2-for-rapid-long- range-mobile-mapping/#Specs (accessed on 27.03.2019)

[6] Bronzino, G. P. C., Grasso, N., Matrone, F., Osello, A., and Piras, M., Laser-Visual-Inertial Odometry based solution for 3D Heritage Modeling: the Sanctuary of the Blessed Virgin of Trompone, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W15, 215–222, https://doi.org/10.5194/isprs-archives-XLII-2-W15-215-2019, 2019.

[7] https://www.agisoft.com (accessed on 02.05.2019)

[8] http://www.cloudcompare.org (accessed on 15.04.2019)

[9] Borri A., De Maria A., Scheda di valutazione dell’IQM (indice di qualità muraria), ReLUIS 3rd year report, Annex 3b.1-UR06-1 (2009)

[10] Borri A., De Maria A., Linee guida per la compilazione della scheda di valutazione dell’IQM, ReLUIS 3rd year report, Annex 3b.1-UR06-2, (2009)

[11] Borri A., De Maria A. Indice di qualità muraria (IQM) e correlazione con le caratteristiche meccaniche, (ReLUIS), (2015) Report WP1_1-1_2015,UNIPG,: http://www.reluis.it/images/stories/divulgazione/WP1_1-1_2015UNIPG_IQM_Report.pdf (accessed on 15.01.2020)

[12]Borri A., De Maria A. Il metodo IQM per la stima delle caratteristiche meccaniche delle murature: allineamento alla circolare n. 7/2019, Structural n. 222.; https://doi.org/10.12917/STRU222.06 , (accessed on 15.01.2020).

Back to Top
GET PDF

Document information

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

Volume Interdisciplinary projects and case studies, 2021
DOI: 10.23967/sahc.2021.295
Licence: CC BY-NC-SA license

Document Score

0

Views 41
Recommendations 0

Share this document

claim authorship

Are you one of the authors of this document?