Finite element model updating of in-filled RC frames with low strength concrete using ambient vibration test

2013 ◽  
Vol 5 (1) ◽  
pp. 111-127 ◽  
Author(s):  
Mehmet Emin Arslan ◽  
Ahmet Durmus
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Updating ◽  
Element Model ◽  
Ambient Vibration ◽  
Finite Element Model Updating ◽  
Vibration Test ◽  
Ambient Vibration Test ◽  
Strength Concrete ◽  
Rc Frames

Finite Element Model Updating of a PSC Box Girder Bridge Using Ambient Vibration Test

2010 ◽  
Vol 168-170 ◽  
pp. 2263-2270 ◽  
Author(s):  
Matthew Hiatt ◽  
Annika Mathiasson ◽  
John Okwori ◽  
Seung Seop Jin ◽  
Shen Shang ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Updating ◽  
Element Model ◽  
Ambient Vibration ◽  
Research Experience ◽  
Ambient Vibration Test ◽  
Modal Properties ◽  
Ambient Vibration Testing ◽  
Frequency Domain Decomposition

In this paper, in-field ambient vibration testing of a highway bridge in South Korea under traffic loadings has been conducted to update its finite element model for future predictive analysis and diagnosis purpose. The research results presented in this paper are outcomes from an international REU (Research Experience for Undergraduates) program in smart structures funded by US-NSF (National Science Foundation) and hosted abroad by the Korean Advanced Institute of Science and Technology (KAIST). The monitoring, modeling, and model updating of civil infrastructures are vital in maintaining new design and maintenance standards. Using the frequency domain decomposition (FDD), experimental modal properties of the structure were found and, after a finite element model was created and updated based on the modal properties. From the results, it has been concluded that (a) the FDD method successfully identified the modal characteristics of the structure from ambient vibration, (b) that model updating improved the accuracy of the finite element model, (c) Representing the structural supports as springs in the FEM improved the results from the ideally supported model.

Finite Element Model Updating of a Prestressed Concrete Continuous Bridge Based on Dynamic Monitoring

2013 ◽  
Vol 405-408 ◽  
pp. 1645-1650
Author(s):  
Gang Xue ◽  
Wei Yu Bai ◽  
Xian Wang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Prestressed Concrete ◽  
Large Scale ◽  
Model Updating ◽  
Element Model ◽  
Ambient Vibration ◽  
Dynamic Monitoring ◽  
Modified Technique ◽  
Ambient Vibration Test

The finite element model modified technique based on optimization principle is benefit for the model updating of the large bridge structures. By the ambient vibration test information provided by health monitoring system of huanghe bridge II in baotou , this article adopted corrected parameter based on structural eigenvalue sensitivity analysis to update the bridge dynamic model.The fundamental vibrational frequency of updated finite element model is more closer to the measured result under ambient excitation, which indicates that the optimization algorithm provided by large-scale general software can carry out the model updating effectively.

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