Integrating Geomatic Approaches, Operational Modal Analysis, Advanced Numerical and Updating Methods to Evaluate the Current Safety Conditions of the Historical Bôco Bridge
This paper proposes a multidisciplinary approach, combining the terrestrial laser scanner, ambient vibration tests and minor destructive tests, to characterize an early reinforced concrete bridge in Portugal: the Bôco Bridge. All methods are complemented by advanced numerical simulations and a coarse to fine calibration strategy, based on the Douglas-Reid and the non-linear least squares approaches. Results obtained corroborate the robustness of the proposed approach, with an average relative error in frequencies of 1.2% and an average modal assurance criterion of 0.91. Considering this model, its current safety conditions were evaluated, obtaining a minimum safety factor of 2.1.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
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Supplemental Notes:
- Abstract reprinted with permission from Elsevier.
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Authors:
- Bautista-De Castro, Álvaro
- Sánchez-Aparicio, Luis Javier
- Ramos, Luís F
- Sena-Cruz, José
- González-Aguilera, Diego
- Publication Date: 2018-1-15
Language
- English
Media Info
- Media Type: Web
- Features: Figures; Illustrations; Photos; References; Tables;
- Pagination: pp 961-984
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Serial:
- Construction and Building Materials
- Volume: 158
- Issue Number: 0
- Publisher: Elsevier
- ISSN: 0950-0618
- Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1
Subject/Index Terms
- TRT Terms: Finite element method; Historic bridges; Modal analysis; Modernization; Numerical analysis; Reinforced concrete bridges; Safety engineering; Structural analysis; Vibration tests
- Identifier Terms: Bôco Bridge (Braga, Portugal)
- Uncontrolled Terms: Terrestrial laser scanning
- Subject Areas: Bridges and other structures; Highways; History; Maintenance and Preservation;
Filing Info
- Accession Number: 01652479
- Record Type: Publication
- Files: TRIS
- Created Date: Nov 30 2017 9:53AM