1,721,079 research outputs found
A GIS tool for the management of seismic emergencies in historical centers: how to choose the optimal routes for civil protection interventions
Full text linkItaly hosts a considerable part of the world's great art treasures. This great heritage must be protected from risks deriving from a territory characterized by hydrogeological problems and high seismicity. For these reasons, despite the preventive measures that can be foreseen, the need to face emergencies is recurrent. The main instrument to address the hydrogeological and seismic emergencies is the Municipal Civil Protection Emergency Plan. In this plan, both strategic viability and strategic buildings (whose collapse could cause significant damage to the historical, artistic and cultural heritage) must be identified.The paper proposes a methodology, using a GIS platform, useful for achieving two objectives: (1) planning of safe routes in case of critical conditions and (2) identification and planning of safety interventions, thus assigning appropriate priorities to the buildings to be restored, based not only on their relevance to road use, but also on cost considerations...
Progetto di rilevamento tridimensionale, modellazione numerica e progettazione del supporto del cavallo di Canova.
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Uso di un puntatore laser per il monitoraggio di strutture: test su misure dinamiche relative all’abbassamento di un ponte
No full textIl rilievo topografico e la creazione di un modello digitale 3D texturizzato in Montegrotto Terme, via Neroniana. Indagine archeologica 2006
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The Formagliaro Mill (Castelfranco Emilia, Italy): 3D survey of an historical and architectural heritage.
No full textMonitoraggio dinamico della linea elastica di ponti con l'uso di Laser Scanner Terrestre e GNSS
No full textMonitoring of bridges by a laser pointer: Dynamic measurement of support rotations and elastic line displacements: Methodology and first test
Full text linkDeck inclination and vertical displacements are among the most important technical parameters to evaluate the health status of a bridge and to verify its bearing capacity. Several methods, both conventional and innovative, are used for structural rotations and displacement monitoring; however, none of these allow, at the same time, precision, automation, static and dynamic monitoring without using high cost instrumentation. The proposed system uses a common laser pointer and image processing. The elastic line inclination is measured by analyzing the single frames of an HD video of the laser beam imprint projected on a flat target. For the image processing, a code was developed in Matlab® that provides instantaneous rotation and displacement of a bridge, charged by a mobile load. An important feature is the synchronization of the load positioning, obtained by a GNSS receiver or by a video. After the calibration procedures, a test was carried out during the movements of a heavy truck man..
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