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Developing a framework for the specification of Structural Health Monitoring for concrete bridges using the key driver method

Smit, Sander (2020) Developing a framework for the specification of Structural Health Monitoring for concrete bridges using the key driver method.

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Abstract:A lot of concrete bridges in the Netherlands were built in the sixties and seventies of the previous century and are expected to reach their technical end of life in the coming decades. Next to that, the traffic intensity is increasing, which results in higher loads on the bridge. This causes the Netherlands to have a big maintenance and renovation challenge in the coming decades. This challenge asks for more budget for maintenance or a more efficient maintenance strategy. A possible way to improve the efficiency of the maintenance policy is by switching to a more risk-based maintenance approach. This means that maintenance decisions are based on the actual condition of the bridge and the actual risk of failure. Structural Health Monitoring (SHM) is currently developing fast and can present to the asset manager what the current condition of the bridge is. The definition of SHM is the real-time monitoring of in-service structures using an array or network of sensors to collect data that can be used to represent changes in the condition of a structure over time. The data is communicated over a network, and data processing algorithms may be used, if possible, for damage localization, classification and assessment, as well as residual life prediction. This shows that SHM can be beneficial for an asset manager. Asset managers want to have more information about the condition of the bridge, but the SHM system will only give data. The asset manager does not use the SHM system itself and is in most cases not familiar with the SHM techniques. This results that an asset manager cannot specify what they want from a SHM system. A way to check whether a system is suitable is by checking if it meets the system requirements in the specification. The objective of this research is to develop a framework that presents to asset managers how an asset manager should define system requirements, such that the asset manager is able to evaluate if proposed SHM solutions contribute to his objectives. To achieve this objective, the following research question should be answered. How can asset managers set system requirements to Structural Health Monitoring systems, such that the asset manager is able to check if proposed SHM systems will contribute to the asset managers’ goals for the maintenance of concrete bridges?
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:56 civil engineering
Programme:Construction Management and Engineering MSc (60337)
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