Evaluation of Performance of Bridge Weigh-in-Motion Methods Considering Spatial Variability of Bridge Properties
Publication: ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
Volume 9, Issue 4
Abstract
Recently, bridge weigh-in-motion (B-WIM) technology has played an essential part in bridge management and maintenance. To systematically investigate the performance of B-WIM methods considering the spatial variation of material characteristics, a great number of parametric analyses were conducted. First, the random fields are represented through the stochastic harmonic function (SHF) representation method to consider the spatial variability of the mass density and elastic modulus. Then, various scenarios, including sample size, vehicle types, correlation length (CL), and coefficient of variation (COV), are designed in parametric analyses. Finally, on the basis of a vehicle-bridge coupling (VBC) system, numerical simulations are conducted to explore the performance of typical B-WIM methods such as the Moses algorithm and strain area method. The results showed that the performances of two typical B-WIM methods are affected by the spatial variability of material properties, but the maximal discrepancy of recognition accuracy does not exceed 5%, which is acceptable in actual engineering.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors would like to acknowledge financial support from the National Key R&D Program of China (2021YFB1600300), National Natural Science Foundation of China (No. 52008027), and Shaanxi Association for Science and Technology Youth Talent Funding Program (20220407).
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Information & Authors
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Published In
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
Volume 9 • Issue 4 • December 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: May 1, 2023
Accepted: Jul 18, 2023
Published online: Sep 19, 2023
Published in print: Dec 1, 2023
Discussion open until: Feb 19, 2024
ASCE Technical Topics:
- Architectural engineering
- Bridge engineering
- Bridge management
- Bridge tests
- Building management
- Business management
- Engineering fundamentals
- Field tests
- Geometry
- Highway transportation
- Infrastructure
- Maintenance and operation
- Management methods
- Material mechanics
- Material properties
- Materials engineering
- Mathematics
- Parameters (statistics)
- Practice and Profession
- Spatial variability
- Statistics
- Structural engineering
- Tests (by type)
- Transportation engineering
- Vehicles
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