UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Fatigue assessment of historic retrofitted through-truss riveted railway bridge

Parodi-Figueroa, Camila; Sebastian, Wendel; (2024) Fatigue assessment of historic retrofitted through-truss riveted railway bridge. Engineering Structures , 307 , Article 117812. 10.1016/j.engstruct.2024.117812. Green open access

[thumbnail of Engineering structures2024.pdf]
Preview
Text
Engineering structures2024.pdf - Published Version

Download (23MB) | Preview

Abstract

Fatigue damage has been the most common reason for failure in riveted bridges, with the stringer-to-floor-beams connections being identified as the most prone-fatigue locations by several studies. When assessing fatigue damage of historic riveted railway bridges, the analysis usually considers the structure in its current configuration, disregarding any retrofitting the bridge has experienced during its lifetime. This paper presents a fatigue analysis of a one-century-old riveted through-truss railway bridge, part of the Chilean North-South railway line, considering all interventions made to the superstructure since its construction. To perform the analysis, a detailed train loading spectrum is defined considering historical and current data of freight trains and traffic to generate a realistic loading model for the bridge. FE models are generated for the bridge in all configurations (initial and after each retrofitting), and the fatigue damage is evaluated through S-N curves from the Eurocode. The accumulated fatigue damage obtained by this sequence is then compared with a fatigue analysis of the structure in its current configuration. The comparison shows that the fatigue damage is significantly underestimated when assessing the bridge considering only its current configuration and that the retrofitting can substantially change the structural response at the stringer-to-floor beam connections.

Type: Article
Title: Fatigue assessment of historic retrofitted through-truss riveted railway bridge
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.engstruct.2024.117812
Publisher version: https://doi.org/10.1016/j.engstruct.2024.117812
Language: English
Additional information: © 2024 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10204861
Downloads since deposit
21Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item