Finite-Element Model Updating and Dynamic Responses of Reconstructed Historical Timber Bridges using Ambient Vibration Test Results

2020 ◽  
Vol 34 (1) ◽  
pp. 04019085
Author(s):  
Ahmet Can Altunişik ◽  
Ebru Kalkan ◽  
Fatih Yesevi Okur ◽  
Olguhan Şevket Karahasan ◽  
Korhan Ozgan
Author(s):  
Hervé Algrain ◽  
Calogero Conti ◽  
Pierre Dehombreux

Abstract Finite Element Model Updating has for objective to increase the correlation between the experimental dynamic responses of a structure and the predictions from a model. Among different initial choices, these procedures need to establish a set of representative parameters to be updated in which some are in real error and some are not. It is therefore important to select the correct properties that have to be updated to ensure that no marginal corrections are introduced. In this paper the standard localization criteria are presented and a technique to separate the global localization criteria in family-based criteria for damped structures is introduced. The methods are analyzed and applied to both numerical and experimental examples; a clear enhancement of the results is noticed using the family-based criteria. A simple way to qualify the stability of a localization method to noise is presented.


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