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Numerical calibration of railway bridge based on measurement data

Numerical calibration of railway bridge based on measurement data
Auteur(s): , , , ,
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Présenté pendant IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021, publié dans , pp. 1264-1272
DOI: 10.2749/ghent.2021.1264
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Bridges rarely behave precisely according to design assumptions. In most cases, they have some hidden reserves and behave preferable under traffic loads. To take these benefits into consideration n...
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Détails bibliographiques

Auteur(s): (AIT – Austrian Institute of Technology GmbH, Vienna, Austria)
(AIT – Austrian Institute of Technology GmbH, Vienna, Austria)
(AIT – Austrian Institute of Technology GmbH, Vienna, Austria)
(ZAG – Slovenian national building and civil engineering institute, Ljubljana, Slovenia)
(ZAG – Slovenian national building and civil engineering institute, Ljubljana, Slovenia)
(ZAG – Slovenian national building and civil engineering institute, Ljubljana, Slovenia)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021
Publié dans:
Page(s): 1264-1272 Nombre total de pages (du PDF): 9
Page(s): 1264-1272
Nombre total de pages (du PDF): 9
DOI: 10.2749/ghent.2021.1264
Abstrait:

Bridges rarely behave precisely according to design assumptions. In most cases, they have some hidden reserves and behave preferable under traffic loads. To take these benefits into consideration numerical models can be calibrated based on measured structural response. The case study presented herein shows the calibration process for a railway truss bridge in Austria and the comparison of calibration results obtained by two individual teams. Each team did an individual and independent calibration based on different finite element models based on measured train passages. Both calibrations improved the precision of the calculated model response compared to the initial model, but also showed that the calibration parameters must be chosen with care to ensure plausibility of the results.
Copyright: © 2021 International Association for Bridge and Structural Engineering (IABSE)
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