A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Acoustic Emission Monitoring of Prestressed Concrete Bridges: Differences Before and After the First-Crack Opening
A great amount of highway bridges is reaching the lifespan for which they were designed, and most of them need frequent inspections and maintenance to guarantee the safety of users. Structural health monitoring can help infrastructure operators to estimate promptly and accurately the structures’ health condition. The progress of technology has encouraged the development of modern non-destructive monitoring techniques, such as the acoustic emission (AE) method. Recent experiences testify its potential, especially applied to the detection of cracks’ initiation and propagation in structures where it is difficult to perform visual inspection or direct measurements. In this paper, we analyze and correlate the results of AE techniques with the initiation and propagation of the damage in a full-size prestressed concrete highway bridge subjected to a load test up to its failure: the Alveo Vecchio Viaduct. The bridge was built in 1968 and regularly maintained over the years. It is representative, by type, age, and deterioration state, of similar bridges in operation on the Italian highway network. We aim to identify the differences in AE recorded on a real-life structure before and after the first-crack opening, and more in general, the effectiveness of AE techniques in permanent or short-term monitoring.
Acoustic Emission Monitoring of Prestressed Concrete Bridges: Differences Before and After the First-Crack Opening
A great amount of highway bridges is reaching the lifespan for which they were designed, and most of them need frequent inspections and maintenance to guarantee the safety of users. Structural health monitoring can help infrastructure operators to estimate promptly and accurately the structures’ health condition. The progress of technology has encouraged the development of modern non-destructive monitoring techniques, such as the acoustic emission (AE) method. Recent experiences testify its potential, especially applied to the detection of cracks’ initiation and propagation in structures where it is difficult to perform visual inspection or direct measurements. In this paper, we analyze and correlate the results of AE techniques with the initiation and propagation of the damage in a full-size prestressed concrete highway bridge subjected to a load test up to its failure: the Alveo Vecchio Viaduct. The bridge was built in 1968 and regularly maintained over the years. It is representative, by type, age, and deterioration state, of similar bridges in operation on the Italian highway network. We aim to identify the differences in AE recorded on a real-life structure before and after the first-crack opening, and more in general, the effectiveness of AE techniques in permanent or short-term monitoring.
Acoustic Emission Monitoring of Prestressed Concrete Bridges: Differences Before and After the First-Crack Opening
Lecture Notes in Civil Engineering
Rainieri, Carlo (editor) / Fabbrocino, Giovanni (editor) / Caterino, Nicola (editor) / Ceroni, Francesca (editor) / Notarangelo, Matilde A. (editor) / Tonelli, Daniel (author) / Rossi, Francesco (author) / Luchetta, Michele (author) / Zonta, Daniele (author) / Migliorino, Placido (author)
International Workshop on Civil Structural Health Monitoring ; 2021 ; Naples, Italy
2021-08-25
14 pages
Article/Chapter (Book)
Electronic Resource
English
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