Bulletin of Earthquake Science and Engineering

Bulletin of Earthquake Science and Engineering

Integrated Bridge Health Monitoring Toolbox (IBHMT): Phase 1: Visual Inspection

Document Type : Research Note

Authors
Mohsen Elmi 1
Latif Doosti 1
Mohsen Ghafoori Ashtiany 2
omid Bahar 3
1 Ph.D. Student, Structural Engineering Research Center, International Institute of Earthquake Engineering and Seismology (IIEES), Tehran, Iran
2 Professor, Structural Engineering Research Center, International Institute of Seismology and Earthquake Engineering (IIEES) , Tehran, Iran
3 Associate Professor, Structural Engineering Research Center, International Institute of Seismology and Earthquake Engineering (IIEES) Tehran, Iran
10.48303/bese.2023.561401.1095
Abstract
Structural health monitoring (SHM) plays a critical role in preventing bridge failures by enabling the assessment of a bridge's current condition under various loading scenarios. However, the complex interplay of numerous dependent and independent structural parameters makes it challenging to accurately estimate a bridge's health. To address this challenge, we present the Integrated Bridge Health Monitoring Toolbox (IBHMT). The IBHMT is a user-friendly toolbox that streamlines the SHM process for concrete bridges. It leverages existing operational methods, such as visual inspection, static and dynamic testing, and non-destructive testing, in three distinct phases. Each phase builds upon the previous one, allowing users to progress from basic health assessments to a comprehensive understanding of the bridge's physical parameters. Phase 1: Initial Assessment - This phase focuses on a preliminary evaluation using visual inspection techniques. Users record observations of damage and assign severity levels to specific locations on the bridge. IBHMT utilizes this information and a structural analysis engine (e.g., CSiBridge) to perform basic calculations and assess the overall health status. The toolbox then suggests areas for further investigation based on the initial findings. Phase 2: Rapid Assessment - Building upon the initial assessment, Phase 2 incorporates data from rapid assessment methods to create a more refined analytical model. This model is then used for a more comprehensive structural analysis, providing valuable insights into the bridge's behavior under different loading conditions. Phase 3: Model Updating - The final phase utilizes data from Non-Destructive Testing (NDT) techniques to further refine the structural model. This refined model allows for advanced structural analysis, enabling engineers to assess the bridge's long-term performance and remaining service life with greater confidence. The IBHMT integrates a user-friendly Graphical User Interface (GUI) developed using MATLAB. This GUI facilitates data entry for each phase and performs automated data processing and analysis. Users can easily enter information related to visual observations, rapid assessment tests, and NDT results. The toolbox then presents clear and concise results, eliminating the need for expertise in complex software tools. This user-centric design empowers engineers and bridge inspectors to efficiently navigate the SHM process. The IBHMT offers several advantages for bridge owners, infrastructure managers, and decision-makers. It provides a structured and integrated SHM approach, streamlining the process from basic inspections to advanced model updating. This valuable information enables proactive maintenance strategies, ultimately extending the lifespan of concrete bridges and reducing the risk of costly repairs or service disruptions. The user-friendly interface allows even those new to SHM practices to get started, while subsequent phases cater to more detailed analyses. This flexibility addresses the varying needs and resource constraints within the infrastructure management domain. In conclusion, the IBHMT presents a comprehensive and user-friendly solution for bridge health monitoring. By integrating existing methods and employing sophisticated data processing techniques, the toolbox empowers engineers to gain valuable insights into the structural health of bridges. This information is crucial for ensuring the safety and functionality of bridges, ultimately contributing to a more resilient transportation infrastructure network.
Keywords
Structural Health Monitoring (SHM)
Static and Dynamic Method
Visual Inspection
Graphical User Interface (GUI)
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  • Receive Date 03 September 2022
  • Revise Date 19 November 2022
  • Accept Date 30 January 2023