{"id":2317,"date":"2022-02-01T10:28:53","date_gmt":"2022-02-01T09:28:53","guid":{"rendered":"https:\/\/lunitek.it\/wpold\/seismic\/?p=2317"},"modified":"2022-06-16T09:50:09","modified_gmt":"2022-06-16T07:50:09","slug":"atlante-project","status":"publish","type":"post","link":"https:\/\/lunitek.it\/wpold\/seismic\/2022\/02\/01\/atlante-project\/","title":{"rendered":"ATLANTE PROJECT"},"content":{"rendered":"\n

<\/a>In countries with medium to high seismic risk, a seismic vulnerability assessment is needed. Many infrastructures such as hospitals, schools, bridges or viaducts need urgent and detailed assessments to determine their actual state of preservation.<\/p>\n\n\n\n

As recent tragic events have shown, earthquakes and wear and tear are the two of the biggest threats to countries structures and infrastructure and to people’s lives.<\/p>\n\n\n\n

What is the ATLANTE Project<\/strong><\/strong><\/p>\n\n\n\n

The ATLANTE project of the Tuscany Region concerns the development of an innovative prototype for the monitoring of large structures (buildings, bridges, artifacts, …) that uses the technique of Mid Infrared Digital Holography (MIR DH) and represents real progress in the methods of structural diagnostics. Lunitek is the sole technical\/scientific contact for the project, which is supported by Campera Electronic Systems (CES). The technique was developed by the National Institute of Optics of the CNR (CNR-INO) in Florence together with the Department of Earth Science of the University of Florence (UniFI-DST). Prela Perparim LP and DGNET srl are also participating in the project, with Commit Software as consultants.<\/p>\n\n\n\n

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Comparison between seismic and MIR DH techniques<\/strong><\/strong><\/p>\n\n\n\n

The limits of the seismic method<\/strong><\/strong><\/p>\n\n\n\n

Currently, seismic measurements are used to determine the health status of structures and their reference parameters. The seismic technique, based essentially on the use of accelerometers and\/or seismometers to be positioned inside the structure, is rather invasive and expensive in terms of time and human resources and it\u2019s therefore difficult to use on a large scale. With this technique, moreover, it\u2019s not possible to obtain information on possible drifts of the structure such as, for example, the slow subsidence of a wall, the buckling of a city wall or the deformation under load of an attic or a bridge. Finally, the seismic technique is not applicable in all those situations where it\u2019s not possible to put the device on the surface to be monitored (vertical surfaces, crumbling structures, architectural elements that are difficult to access, …).<\/p>\n\n\n\n

Advantages of the MIR DH technique<\/strong><\/strong><\/p>\n\n\n\n

The holographic technique is suitable for monitoring most of the existing structures and allows you to obtain the same information as the seismic technique, in a considerably shorter time, with a more limited use of human resources and remotely, i.e. remaining outside the examined structure, and also allows to monitor all the buildings in an entire urban area.<\/p>\n\n\n\n

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The holographic technique also allows the user to monitor large surfaces of the structure, obtaining a real map of deformations\/displacements of the surface under examination. Finally, unlike the seismic technique, the holographic technique is also able to follow drift motions of the examined structure and to predict the dynamic response of the structure to external stresses, whether environmental or related to human activity.<\/p>\n\n\n\n

These features significantly expand the field of application of this technique to structural engineering, seismic vulnerability and cultural heritage conservation, allowing non-invasive monitoring of environmental deterioration and the ageing process of historical monuments and artistic sites.<\/p>\n\n\n\n