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A platform for research: civil engineering, architecture and urbanism
A Finite Element Model of a Steel Truss Bridge Validated with Controlled Load Test Data
https://orcid.org/http://orcid.org/0000-0002-3161-5134
https://orcid.org/http://orcid.org/0000-0001-9481-1987
https://orcid.org/http://orcid.org/0000-0002-3605-150X
https://orcid.org/http://orcid.org/0000-0001-8494-0822
This work presents the development of a finite element model of a welded railway bridge constructed in 1955. This model will be used as the main tool for a structural health monitoring system of this ageing infrastructure. Such a system requires load monitoring for which the bridge was instrumented with fiber optic Bragg grating sensors spread over two longitudinal and two transverse girders. After the instrumentation, a series of passages using a locomotive with known axle loads and geometry was performed, during which strains were continuously recorded. A comparison between the experimental and numerical results showed excellent agreement for all sensors located remote from the bridge bearings. The comparison also showed that the influence of the bridge bearings on local deformations differs from the hypothesized design, especially at high load. It was found that deformation of structural elements is strongly constrained to the loaded sectors. The truss design efficiently transfers the loads on the longitudinal girders through the closest transverse girders onto the main trusses.
A Finite Element Model of a Steel Truss Bridge Validated with Controlled Load Test Data
https://orcid.org/http://orcid.org/0000-0002-3161-5134
https://orcid.org/http://orcid.org/0000-0001-9481-1987
https://orcid.org/http://orcid.org/0000-0002-3605-150X
https://orcid.org/http://orcid.org/0000-0001-8494-0822
This work presents the development of a finite element model of a welded railway bridge constructed in 1955. This model will be used as the main tool for a structural health monitoring system of this ageing infrastructure. Such a system requires load monitoring for which the bridge was instrumented with fiber optic Bragg grating sensors spread over two longitudinal and two transverse girders. After the instrumentation, a series of passages using a locomotive with known axle loads and geometry was performed, during which strains were continuously recorded. A comparison between the experimental and numerical results showed excellent agreement for all sensors located remote from the bridge bearings. The comparison also showed that the influence of the bridge bearings on local deformations differs from the hypothesized design, especially at high load. It was found that deformation of structural elements is strongly constrained to the loaded sectors. The truss design efficiently transfers the loads on the longitudinal girders through the closest transverse girders onto the main trusses.
A Finite Element Model of a Steel Truss Bridge Validated with Controlled Load Test Data
https://orcid.org/http://orcid.org/0000-0002-3161-5134
https://orcid.org/http://orcid.org/0000-0001-9481-1987
https://orcid.org/http://orcid.org/0000-0002-3605-150X
https://orcid.org/http://orcid.org/0000-0001-8494-0822
This work presents the development of a finite element model of a welded railway bridge constructed in 1955. This model will be used as the main tool for a structural health monitoring system of this ageing infrastructure. Such a system requires load monitoring for which the bridge was instrumented with fiber optic Bragg grating sensors spread over two longitudinal and two transverse girders. After the instrumentation, a series of passages using a locomotive with known axle loads and geometry was performed, during which strains were continuously recorded. A comparison between the experimental and numerical results showed excellent agreement for all sensors located remote from the bridge bearings. The comparison also showed that the influence of the bridge bearings on local deformations differs from the hypothesized design, especially at high load. It was found that deformation of structural elements is strongly constrained to the loaded sectors. The truss design efficiently transfers the loads on the longitudinal girders through the closest transverse girders onto the main trusses.
A Finite Element Model of a Steel Truss Bridge Validated with Controlled Load Test Data
Structural Integrity
Pavlou, Dimitrios (editor) / Adeli, Hojjat (editor) / Correia, José A. F. O. (editor) / Fantuzzi, Nicholas (editor) / Georgiou, Georgios C. (editor) / Giljarhus, Knut Erik (editor) / Sha, Yanyan (editor) / Hectors, Kris (author) / Saelens, Lien (author) / Bracke, Jona (author)
Olympiad in Engineering Science ; 2023 ; Aldemar Olympian Village, Greece
Advances in Computational Mechanics and Applications ; Chapter: 23 ; 327-348
Structural Integrity ; 29
2024-02-09
22 pages
Article/Chapter (Book)
Electronic Resource
English
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