CASE STUDY: IMPACT OF ROUTE SPECIFIC LOADS AND NUMERICAL MODEL CALIBRATION ON FATIGUE ASSESSMENT OF AN EXISTING RAILWAY BRIDGE (COMPDYN 2023)

Research output: Chapter in Book or Conference ProceedingsConference Proceedings with Oral Presentationpeer-review

Abstract

The presented case study investigates the proposed fatigue damage on an existing 108 year old riveted railway bridge, located in Austria. The bridge was instrumented with numerous sensors (strain gauges, inclinometers, temperature sensors) in the summer of 2022 and a Weigh in Motion (WIM) system was installed on the track. Since then continuous monitoring is carried out and the axle loads as well as the structural response of the structure during train passage is recorded. The study shows the process of numerical model calibration of a finite element (FE) model based on recorded sensor data and known defects of the bridge structure. The influence of the calibrated FE-model is shown by a comparison of calculated fatigue damage using measured loads from the WIM system as well as a train mix from codified design, both for
the initial and the calibrated numerical model.
Translated title of the contributionFallstudie: Einfluss von streckenspezifischen Lastmodellen und numerischer Modellkalibration auf die Ermüdungsbewertung einer bestehenden Eisenbahnbrücke
Original languageEnglish
Title of host publicationCompdyn 2023 Proceedings
Number of pages16
Publication statusPublished - 13 Jun 2023
EventCOMPDYN 2023 - 9th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering - Athens, Greece
Duration: 12 Jun 202314 Jun 2023
https://2023.compdyn.org

Conference

ConferenceCOMPDYN 2023 - 9th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
Abbreviated titleCOMPDYN 2023
Country/TerritoryGreece
CityAthens
Period12/06/2314/06/23
Internet address

Research Field

  • Reliable and Silent Transport Infrastructure

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