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In 2018 a collaborative project between Politecnico di Milano (PoliMI) and Regione Lombardia (RL) was launched to join forces and expertise toward the improvement of the regional transport infrastructures maintenance management. One of the project goals was the development of regional guidelines aimed to support the design and implementation of monitoring systems for bridges. The focus of this paper is on the illustration of the Monitoring Regional (MoRe) guidelines and of their implementation on nine pilot monitoring systems designed and deployed within the project. The (MoRe) guidelines tackle the entire monitoring process from the analyses of the monitoring goals and the preliminary investigations needed to the identification of the phenomena and relevant indicators to monitor, up to the selection of monitoring devices and the presentation of results. A short illustration of the permanent monitoring systems installed on nine exemplary bridges in the Lombardia region concludes the paper. [ABSTRACT FROM AUTHOR]

The thermal properties of a two-layered composite conductor are modified in the case that the interface is damaged. The present paper deals with the nondestructive evaluation of the perturbations of interface thermal conductance due to the presence of defects. The specimen was heated by means of a lamp system or a laser while its temperature was measured with an infrared camera in the typical framework of active thermography. The evaluation of the defects affecting the interface was made in the past using thin plate approximation or standard numerical techniques for inverse problems. Here, we show an explicit inversion formula obtained from the reciprocity property of parabolic equations. [ABSTRACT FROM AUTHOR]

A selection of bridges has been investigated to suggest the key features to be assessed during their aging. The main idea is to highlight the relevance of the maintenance plans in the through‐life management of the structure. Accurate rules might provide a basis for enhancing the structure performance and evaluating whether the risk associated with its use is limited to acceptable thresholds. The paper analyses also the classification procedures in use, highlighting the main issues that could facilitate a more aware evaluation of the synthetic indicators for these structures. Furthermore, it aims at describing the main deficiencies recurrently encountered during the surveys on the selected bridges. The main goal is to provide bridge owners and managers with more streamlined methods and tools that can be used in the existing bridge ranking procedures to meet the latest national requirements for maintenance management. [ABSTRACT FROM AUTHOR]