{"id":11706,"date":"2026-03-01T10:25:05","date_gmt":"2026-03-01T09:25:05","guid":{"rendered":"https:\/\/www.iwim.it\/?p=11706"},"modified":"2026-03-13T09:46:57","modified_gmt":"2026-03-13T08:46:57","slug":"integration-of-structural-monitoring-and-dynamic-weighing-with-iwim-griffon-case-study-of-brescia","status":"publish","type":"post","link":"https:\/\/www.iwim.it\/en\/integration-of-structural-monitoring-and-dynamic-weighing-with-iwim-griffon-case-study-of-brescia\/","title":{"rendered":"INTEGRATION OF STRUCTURAL MONITORING AND DYNAMIC WEIGHING WITH IWIM “GRIFFON” CASE STUDY OF BRESCIA"},"content":{"rendered":"\t\t
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INTEGRATED STRUCTURAL MONITORING AND DYNAMIC WEIGHING<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Developed by iWIM<\/strong> in collaboration with the University of Brescia<\/strong>, GRIFFON<\/strong> introduces a new integrated approach to infrastructure monitoring through the use of innovative fiber optic technology andintegration with dynamic weighing<\/strong>.<\/em><\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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ABSTRACT<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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GRIFFON is the new integrated system developed by iWIM for infrastructure monitoring: it combines dynamic vehicle weighing<\/a> and continuous structural monitoring through fiber-optic sensing in a single platform. The system provides real-time data on the structural response of works and vehicular loads, enabling predictive maintenance based on objective indicators. Key features include minimally invasive intervention, historical analysis capability, automatic alarm generation, and interoperability with BIM and Digital Twin environments. <\/p>

The case study carried out on a bridge on the Brescia South Bypass, carried out in cooperation with DICATAM (Department of Civil Engineering, Architecture, Land, Environment and Mathematics) of the University of Brescia, is presented.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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THE safety and efficiency of infrastructure <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The safety and efficiency of road infrastructure is a strategic priority for managers, designers and construction companies. Recent European directives and increasing attention to predictive maintenance are accelerating the evolution toward intelligent monitoring systems, capable of detecting in real time the health of the works and the stresses to which they are subjected. However, the solutions currently in use still have severe limitations, particularly in their ability to integrate structural information with dynamic vehicular traffic data. In addition, infrastructure monitoring is often discontinuous and data access laborious and time-consuming. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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In this scenario comes GRIFFON<\/strong>, an innovative system developed by iWIM in collaboration with the DICATAM Department of the University of Brescia, which for the first time combines dynamic weighing<\/a> (WIM)<\/strong> and distributed structural monitoring (SHM)<\/strong> in a single sensor infrastructure, using high-performance fiber optic technology. While the SHM system allows real-time detection of any structural anomalies or degradation, the WIM allows estimation of the actual loads applied to the bridge. The integration of the two systems, with particular reference to the synchronization between the two, whereby the structural effect measured at each instant is always linked to a sum of loads (axes) known in value and position on the bridge, provides a complete view of the behavior of the structure under real operating conditions, improving the ability to prevent damage, plan maintenance interventions, and optimize the management and maintenance of the infrastructure in the long term. <\/p>

iWIM<\/strong> has more than 15 years of experience in the field of dynamic weighing with the BISON system<\/strong><\/a>, already widely used and recognized in the industry. It is precisely the development and refinement of BISON that has enabled the company to accrue solid know-how in fiber optic sensing, a technology that forms the basis of both BISON and the new GRIFFON system. <\/p>

TheUniversity of Brescia <\/strong>has been active for more than a decade in research, both basic and applied, in the field of bridge safety. Activities have taken the form of numerous collaboration agreements, research contracts and specialized consultancies with public agencies. The main areas of focus include: inspection and prioritization of interventions, analysis of critical structures and components (such as Gerber saddles and prestressed concrete beams subject to shear), and development of reinforcement techniques, particularly through the use of high and ultra-high structural performance fiber-reinforced materials (HPFRCC and UHPFRC). <\/p>

UNIBS and iWIM acted in synergy: while the former handled the conceptual phase, the latter provided implementation, software development, and sensor installation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Optical\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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iWIM technicians engaged in installation work on fiber-optic sensors for infrastructure monitoring<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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GRIFFON: a new architecture for infrastructure security<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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GRIFFON is a modular system consisting of a fiber optic sensor network, acquisition units, communication devices, and a centralized software platform. The heart of the architecture lies in the ability to simultaneously detect vehicular load data and the structural response of the structure<\/strong>, enabling a combined analysis of the two components. <\/p>\n

The system integrates directly into existing infrastructure with minimally invasive interventions. Optical sensors are applied to structural elements (slabs, piers, beams), and are able to continuously measure parameters such as deformations, vibrations, inclinations, temperature and dynamic loads. The data stream is then managed by a software interface that enables both historical and real-time visualization and analysis. <\/p>\n

This ability to provide a synoptic and up-to-date picture of mechanical behavior and induced loading is an evolution from the disjointed systems currently used. It is not just a matter of collecting data, but of transforming it into<\/strong> useful operational knowledge<\/strong> for infrastructure management, planning and maintenance. <\/p>\n

GRIFFON addresses a wide range of applications: its versatility and scalability<\/strong> make it suitable for both new construction and retrofits of existing infrastructure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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The advantages of integrating dynamic weighing and infrastructure monitoring<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The integration of data from dynamic weighing and data from structural behavior represents a quantum leap from traditional systems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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The GRIFFON system interface automatically correlates the vehicular data collected by the dynamic weighing system with the deck response recorded by the structural monitoring sensors<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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This combination makes it possible to correlate the actual stresses induced by vehicular traffic with the response of the infrastructure<\/strong>, generating advanced indicators of risk and degradation. For example, the system can detect in real time the passage of an overloaded vehicle and assess its immediate impact on the structure, triggering alarms or suggesting targeted inspections. <\/p>\n

The presence of integrated data also enables more precise calibration of the numerical models used for structural analysis, improving the reliability of simulations and the effectiveness of mitigation strategies. The possibility of performing historical cross-analysis between heavy traffic and structural damage also paves the way for new logics of shared responsibility and management between managers and users of the network. <\/p>\n

Integration brings numerous operational benefits, including:<\/p>\n