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Development of methodologies for damage identification in railway bridges based on indirect monitoring and machine learning algorithms

Grant number: 22/13045-1
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): April 01, 2023
Effective date (End): March 31, 2027
Field of knowledge:Engineering - Civil Engineering - Structural Engineering
Principal Investigator:Tulio Nogueira Bittencourt
Grantee:Cassio Scarpelli Cabral de Braganca
Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Bridges and viaducts are key elements of any land transport infrastructure, allowing for shorter and more economical journeys by avoiding the need to bypass obstacles such as rivers and valleys. This aspect is even more important when it comes to the railway in which vehicles are not able to overcome very intense slopes. Recent technological advances in trains have led to significant increases in speeds and axle load significantly increasing demands on bridges and viaducts. These increases in demand, linked to the aging of the infrastructure, are making it increasingly important to have robust methodologies for the early detection of damage in these structures. Nowadays, the standard, both in Brazil and in the world, is still the performance of purely visual periodic inspections, which does not allow the early detection of many types of damage. Faced with this reality, some infrastructure managers have chosen to install modern structural integrity monitoring systems on bridges. The high cost associated with these systems, however, ends up making their installation on all bridges and viaducts of a railroad prohibitive, limiting their use to those that are more critical or of greater length. In an attempt to address this deficiency, infrastructure managers are increasingly interested in new technologies capable of detecting road damage based on monitoring systems embedded in rail vehicles. Faced with this motivation, this work proposes the development of an automatic methodology for the detection of damage in railway bridges and viaducts based on the recognition, through machine learning techniques, of characteristic patterns of damage in dynamic responses obtained through in-vehicle monitoring systems.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BRAGANCA, CASSIO; SOUZA, EDSON F.; RIBEIRO, DIOGO; MEIXEDO, ANDREIA; BITTENCOURT, TULIO N.; CARVALHO, HERMES. Drive-by Methodologies Applied to Railway Infrastructure Subsystems: A Literature Review-Part II: Track and Vehicle. APPLIED SCIENCES-BASEL, v. 13, n. 12, p. 29-pg., . (22/13045-1)
SOUZA, EDSON F.; BRAGANCA, CASSIO; MEIXEDO, ANDREIA; RIBEIRO, DIOGO; BITTENCOURT, TULIO N.; CARVALHO, HERMES. Drive-by Methodologies Applied to Railway Infrastructure Subsystems: A Literature Review-Part I: Bridges and Viaducts. APPLIED SCIENCES-BASEL, v. 13, n. 12, p. 31-pg., . (22/13045-1)

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