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Open AccessArticle

Wireless-Based Identification and Model Updating of a Skewed Highway Bridge for Structural Health Monitoring

1
Sustainable and Innovative Bridge Engineering Research Center, College of Civil Engineering, Fuzhou University, Fuzhou 350108, China
2
Structural Mechanics Section, University of Leuven (KU Leuven), 3001 Leuven, Belgium
3
Civil Engineering Department, Universidad Politécnica de Madrid, 28040 Madrid, Spain
*
Author to whom correspondence should be addressed.
Leqia He was Previously Research Associate at Structural Mechanics Section, University of Leuven (KU Leuven), 3001 Leuven, Belgium.
Appl. Sci. 2020, 10(7), 2347; https://doi.org/10.3390/app10072347
Received: 31 January 2020 / Revised: 19 March 2020 / Accepted: 23 March 2020 / Published: 29 March 2020
(This article belongs to the Special Issue Assessing and Extending the Service Life of Bridges)
Vibration-based monitoring was performed on a short-span skewed highway bridge on the basis of wireless measurements. By means of operational modal analysis, highly accurate modal results (frequencies and mode shapes) were extracted by using a self-developed wireless acquisition system, for which the performance was verified in the field. In order to reproduce the experimental modal characteristics, a refined finite element model was manually tuned to reduce the idealization errors and then updated with the sensitivity method to reduce the parametric errors. It was found that to build a reliable Finite element (FE) model for application in structural health monitoring, the effects of superelevation and boundary conditions of a skewed bridge should be taken into account carefully. View Full-Text
Keywords: vibration-based monitoring; operational modal analysis; wireless sensors; skewed bridge; bridge dynamics; superelevation vibration-based monitoring; operational modal analysis; wireless sensors; skewed bridge; bridge dynamics; superelevation
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MDPI and ACS Style

He, L.; Reynders, E.; García-Palacios, J.H.; Carlo Marano, G.; Briseghella, B.; De Roeck, G. Wireless-Based Identification and Model Updating of a Skewed Highway Bridge for Structural Health Monitoring. Appl. Sci. 2020, 10, 2347.

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