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Numerical Model Updating Technique for Estimating Load Carrying Capacities of High Speed Railway Bridges

 Numerical Model Updating Technique for Estimating Load Carrying Capacities of High Speed Railway Bridges
Auteur(s): , , ,
Présenté pendant IABSE Conference: Bridges and Structures Sustainability - Seeking Intelligent Solutions, Guangzhou, China, 8-11 May 2016, publié dans , pp. 490-497
DOI: 10.2749/222137816819258915
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The load carrying capacities of railway bridges should be periodically evaluated due to its social significance. Especially, load carrying capacity evaluation for a high speed railway bridge is mor...
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Détails bibliographiques

Auteur(s):



Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Conference: Bridges and Structures Sustainability - Seeking Intelligent Solutions, Guangzhou, China, 8-11 May 2016
Publié dans:
Page(s): 490-497 Nombre total de pages (du PDF): 8
Page(s): 490-497
Nombre total de pages (du PDF): 8
Année: 2016
DOI: 10.2749/222137816819258915
Abstrait:

The load carrying capacities of railway bridges should be periodically evaluated due to its social significance. Especially, load carrying capacity evaluation for a high speed railway bridge is more needed because of nasty accident. Numerical analysis can be a good tool for evaluating load carrying capacity instead of field test which has limitations such as traffic control, weather conditions, and economic problem. For reasonable evaluating load carrying capacity, numerical model should be reliably updated with accurate measured data. In this study, combined phase model updating technique based on univariate search method was used for model updating. And measuring point roaming method was used for meticulous measurement with limited number of sensor. As a result, it was possible to get similar response from numerical experiment with ambient vibration response from existing bridge. The updated model could be used for estimating load carrying capacity of a bridge.