PSI - Issue 62

Luigi Pallante et al. / Procedia Structural Integrity 62 (2024) 268–275 Pallante L. et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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3. Methodology Starting from a well-structured data set, the current research offers a time- and cost-effective methodology that makes it possible to create a digital BIM and GIS-implementable model of numerous bridges. Within the context of the MLAZIO project, the methodology is intended to be used on the current road bridges situated in the Lazio area of Italy. The project's primary objective, as defined by the Italian Ministry of Infrastructure and Transport (MIT), is to give the regional infrastructure manager a multi-level approach for risk assessment, both static and seismic, and the management of its infrastructure network. It was developed by the Structures and Road Infrastructures research groups of the Department of Civil, Computer Science, and Aeronautical Technologies Engineering of Roma Tre University. The general framework of the MLAZIO project is summarized in Figure 1 and more reference can be found in [12, 13].

Fig. 1. MLAZIO project framework

3.1. Creation of a structured database A structural database forms the starting point of any bridge and viaduct management system. It comes from the processing of data collected through inspection-type procedures or from the use of existing information reported in other works management systems. The goal of defining structured databases is to create an innovative support for the management of existing infrastructure assets. Each work is collected within an inventory where all information about the characteristics of each is collected. This information can be derived through in-depth visual observations and with the help of inspection and evaluation sheets to determine the state of structural elements to plan appropriate maintenance, survey means, geographic location systems, and satellite data. The information obtained mainly includes: • Identifying and geographic location master data. • Data on the type of bridge and characteristics of individual components (number, type, geometric and construction characteristics). • Data on inspections and assessments of the state of the work. The first category of information includes everything that classifies the individual work and the direction to which it belongs, e.g.: location, year of construction, type of work in relation to the obstacle crossed (overpass, bridge or viaduct), start and end progression and geographical position of the route concerning a specific Cartesian reference