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The Folded Wiener Process for Non-negative Non-monotone Degradation Processes Read chapter Read first chapter

2021 | OriginalPaper | Chapter

Determination of the Effective Stiffness of Half-Open Cross-Section Bars and Orthotropic Steel Deck of a Truss Bridge Using Model Updating

Authors : Viet Long Ho, Guido De Roeck, Thanh Bui-Tien, Magd Abdel Wahab

Published in: Proceedings of the 8th International Conference on Fracture, Fatigue and Wear

Publisher: Springer Singapore

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Abstract

Vibration-based model updating is widely accepted as an effective technique to construct a baseline model for structural health monitoring. In this paper, the effects of half-open cross-section and orthotropic deck on the global vibration behaviour of a truss bridge are considered. To do that, an FE model using ANSYS is built with variations of half-open cross-section area of bars and the stiffness of the orthotropic steel deck. The cross-section area of bars are assigned a reduced coefficient, less than and equal to one. Based on a vibration test, a hybrid optimization algorithm, known as Hybrid Particle Swarm Optimization and Gravitational Search Algorithm (PSOGSA), is applied to reduce the differences in frequencies and mode shapes between measurements and FE simulations. Finally, the effective coefficients of the cross-section as well as the stiffness of steel deck are obtained from the updated model.

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Footnotes
1
Details of SSI-COV in Ref. [6, 7].
 
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Metadata
Title
Determination of the Effective Stiffness of Half-Open Cross-Section Bars and Orthotropic Steel Deck of a Truss Bridge Using Model Updating
Authors
Viet Long Ho
Guido De Roeck
Thanh Bui-Tien
Magd Abdel Wahab
Copyright Year
2021
Publisher
Springer Singapore
Book
Proceedings of the 8th International Conference on Fracture, Fatigue and Wear

Print ISBN: 978-981-15-9892-0

Electronic ISBN: 978-981-15-9893-7

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-981-15-9893-7_6

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