Finite element model updating of a cable-stayed bridge using structural health monitoring data

Paper

Sharry, Thomas, Guan, Hong, Hoang, Nam, Nguyen, Andy and Oh, Erwin. 2021. "Finite element model updating of a cable-stayed bridge using structural health monitoring data." Cunha, A. and Caetano, E. (ed.) 10th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Advanced Research and Real-World Applications (SHMII-10). Porto, Portugal 30 Jun - 02 Jul 2021 Winnipeg, Canada.
Paper/Presentation Title

Finite element model updating of a cable-stayed bridge using structural health monitoring data

Presentation TypePaper
AuthorsSharry, Thomas (Author), Guan, Hong (Author), Hoang, Nam (Author), Nguyen, Andy (Author) and Oh, Erwin (Author)
EditorsCunha, A. and Caetano, E.
Journal or Proceedings TitleProceedings of the 10th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII-10)
ERA Conference ID43541
Number of Pages7
Year2021
Place of PublicationWinnipeg, Canada
Web Address (URL) of Paperhttps://web.fe.up.pt/~shmii10//ficheiros/eBook_SHMII_2021.pdf
Conference/Event10th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Advanced Research and Real-World Applications (SHMII-10)
International Conference on Structural Health Monitoring of Intelligent Infrastructure
Event Details
International Conference on Structural Health Monitoring of Intelligent Infrastructure
Rank
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Event Details
10th International Conference on Structural Health Monitoring of Intelligent Infrastructure: Advanced Research and Real-World Applications (SHMII-10)
Event Date
30 Jun 2021 to end of 02 Jul 2021
Event Location
Porto, Portugal
Abstract

This paper presents a finite-element model of the Phu My Bridge, a 380m-main span reinforced concrete cable-stayed bridge in Ho Chi Minh City, Vietnam. The model is also updated based on accelerometer data from the on-structure sensing system for structural health monitoring (SHM). A comprehensive sensitivity study is undertaken to examine the effects of various structural parameters on the modal properties, according to which a set of structural parameters are then selected for model updating. The finite-element model is updated in an iterative procedure to minimise the differences between the analytical and measured natural frequencies. The model updating process converges after a small number of four iterations, due to the accuracy of the initial model which was achieved through careful consideration of the structural parameter values for the model, optimal element discretisation for mesh convergence, and the most sensitive parameters for updating. The updated finite-element model for the Phu My Bridge is able to reproduce natural frequencies in good agreement with measured ones and can be helpful for long-term monitoring efforts.

Keywordsstructural health monitoring; sensitivity-based model updating; operational model analysis
ANZSRC Field of Research 2020400510. Structural engineering
400508. Infrastructure engineering and asset management
Byline AffiliationsGriffith University
University of Management and Technology, Vietnam
School of Civil Engineering and Surveying
Institution of OriginUniversity of Southern Queensland
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