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Keywords: bridge health monitoring, bridge weigh-in-motion, damage sensitive parameter, strain, acceleration, displacement.

Abstract

The importance of bridge health monitoring (BHM) has increased considerably and has become an essential component in monitoring transportation network. Visual inspection is mostly used to monitor the structural health of bridges. However, it has some downsides such as variability in the judgment of individual inspecting personnel, the necessity of physical presence at the bridge location, inaccessibility at remote areas, and many more. Several BHM methods are available, however, there is no solution for any type of bridge and damage condition. This leaves greater scope for new technologies to be adopted for BHM. The bridge weigh-in-motion (B-WIM) is gaining much attention as a promising alternative approach to BHM. B-WIM system captures bridge response due to vehicles traversing over it and estimates the vehicle weights. The main advantages of the B-WIM system are durability, portability, and easy installation. In addition to the weight estimation, it provides other structural information and also overcomes the limitations of pavement-based weigh-in-motion (P-WIM) systems. A few damage sensitive parameters (DSPs) have recently been developed in the last decade using the B-WIM system. However, the performance of a DSP computed utilizing multiple response time histories from a single bridge under identical circumstances is seldom studied. In this paper, a 3D finite element (FE) bridge model of a real bridge is analyzed and acceleration, strain, and displacement response time histories are captured in every quarter location of the bridge length within the span. These response time histories are then fed to the B-WIM algorithm to estimate gross vehicle weights (GVW) and DSP values are determined and compared for performance evaluation. Finally, conclusions are drawn from this comparative study with an attempt to highlight the future aspects.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 3 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: B.H.V. Topping and J. Kruis Paper 13.3 Performance of a damage sensitive parameter obtained from different response-based bridge weigh-in-motion D. Paul and K. Roy Department of Civil and Environmental Engineering, IIT Patna, India doi:10.4203/ccc.3.13.3 Full Bibliographic Reference for this paper D. Paul, K. Roy, "Performance of a damage sensitive parameter obtained from different response-based bridge weigh-in-motion", in B.H.V. Topping, J. Kruis, (Editors), "Proceedings of the Fourteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 3, Paper 13.3, 2022, doi:10.4203/ccc.3.13.3 Keywords: bridge health monitoring, bridge weigh-in-motion, damage sensitive parameter, strain, acceleration, displacement. Abstract The importance of bridge health monitoring (BHM) has increased considerably and has become an essential component in monitoring transportation network. Visual inspection is mostly used to monitor the structural health of bridges. However, it has some downsides such as variability in the judgment of individual inspecting personnel, the necessity of physical presence at the bridge location, inaccessibility at remote areas, and many more. Several BHM methods are available, however, there is no solution for any type of bridge and damage condition. This leaves greater scope for new technologies to be adopted for BHM. The bridge weigh-in-motion (B-WIM) is gaining much attention as a promising alternative approach to BHM. B-WIM system captures bridge response due to vehicles traversing over it and estimates the vehicle weights. The main advantages of the B-WIM system are durability, portability, and easy installation. In addition to the weight estimation, it provides other structural information and also overcomes the limitations of pavement-based weigh-in-motion (P-WIM) systems. A few damage sensitive parameters (DSPs) have recently been developed in the last decade using the B-WIM system. However, the performance of a DSP computed utilizing multiple response time histories from a single bridge under identical circumstances is seldom studied. In this paper, a 3D finite element (FE) bridge model of a real bridge is analyzed and acceleration, strain, and displacement response time histories are captured in every quarter location of the bridge length within the span. These response time histories are then fed to the B-WIM algorithm to estimate gross vehicle weights (GVW) and DSP values are determined and compared for performance evaluation. Finally, conclusions are drawn from this comparative study with an attempt to highlight the future aspects. download the full-text of this paper (PDF, 8 pages, 845 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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