Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"bridge inspection"”.
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Surface and Sub-Surface Analyses for Bridge Inspection
The development of bridge inspection solutions has been discussed in the recent past. In this dissertation, significant development and improvement on the state-of-the-art in the field of bridge inspection using multiple sensors (e.g. ground penetrating radar (GPR) and visual sensor) has been …
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Route Optimization for Automated Bridge Inspection with Genetic Algorithm
… (GA) to generate efficient routes for a robotic bridge inspection team. Using robots to automate the process of bridge inspection will improve human safety and reduce time and money allocated to bridge inspections. To do this, we attack the problem of minimizing and balancing routes for a team of …
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Evaluating Trust in AI-Assisted Bridge Inspection through VR
… Virtual Reality (VR) environments for bridge maintenance. Adopting a within-subjects design approach, this research leverages VR environments to simulate real-world bridge maintenance scenarios and gauge user interactions with AI tools. With the industry transitioning from paper-based …
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Evaluation of Introducing Technologies to Bridge Inspection and Maintenance in Japan
This study investigates the current problems in bridge inspection and maintenance in Japan and explores how the technologies can help address the problems. The literature reviews and interviews with bridge owners identify the potential problems and needs of the bridge owners in chapter 2. Chapter 3 …
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Impact of Environmental Classification on Steel Girder Bridge Elements Using Bridge Inspection Data
… of Transportation (DOT's) have established Bridge Management Systems (BMS) with procedures to aid in estimating service lives of bridge components and elements. Service life estimates, together with cost information, are used to develop life-cycle costs of bridges. These estimates are …
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Bridge damage detection and BIM mapping
Bridges are a vitally important part of modern infrastructure. Their condition needs to be monitored on a continuous basis in order to ensure their safety and functionality. Teams of engineers visually inspect more than half a million bridges per year in the US and the EU. There is clear evidence …
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Automated High-quality Image Acquisition for UAV-enabled Bridge Visual Inspection
Bridges need regular inspections to identify potential defects and provide maintenance recommendations. Recently, camera-mounted Unmanned Aerial Vehicles (UAVs) have emerged as a promising tool for bridge inspection, potentially replacing traditional inspection methods using rigging, scaffoldings, …
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Mag Feet : a robotic device for the inspection of steel bridge structures
The aging of America's steel bridges presents many challenges. Undetected cracks and corrosion can eventually lead to catastrophic failure. Due to the difficulties with inspecting existing bridges the use of mobile robots for steel bridge inspection has become an important area of research. This …
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Data-driven Infrastructure Inspection
Bridge inspection and infrastructure inspection are critical steps in the lifecycle of the built environment. Emerging technologies and data are driving factors which are disrupting the traditional processes for conducting these inspections. Because inspections are mainly conducted visually by …
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View Point Planning for Inspecting Static and Dynamic Scenes with Multi-Robot Teams
… This work is motivated by two applications: bridge inspection and environmental monitoring using Unmanned Aerial Vehicles. For static scenes, we are given a set of target points in a polygonal environment that must be monitored using robots with cameras. The goal is to compute a tour for all …
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Data Driven Bridge Deck Deterioration Modeling and Maintenance Intervention Scheduling
<p>Majority of over 617,000 bridges across the United States are significantly impacted by environmental factors, aging materials, and heavy traffic loads. According to the 2021 Infrastructure Report, nearly 231,000 bridges require repair or preservation work, with 46,154 (7.5%) being classified as …
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Machine learning-based analytics of structured and unstructured data for enhanced bridge deterioration prediction
The increasing availability of heterogeneous bridge data from multiple sources opens unprecedented opportunities for data analytics to better predict bridge deterioration for supporting enhanced bridge maintenance decision making. Such data include structured National Bridge Inventory (NBI) and …
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Autonomous vision-based inspection of RC railway bridges for rapid post-earthquake response and recovery
… proposes a framework for autonomous vision-based inspection of reinforced concrete (RC) railway bridges to realize rapid post-earthquake response and recovery, which are crucial for minimizing the disruptions to people’s lives and business. Currently, after an earthquake, coarse preliminary …
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Assessing the economic value of using structural health monitoring systems on South African bridges by studying the Ermelo-Richards Bay Freight Railway line
… systems can be used in detecting overloading (on bridges for instance) and to alert asset managers of any due maintenance. Büyüköztürk (2007) argues that conventional methods of inspecting the condition of bridges are generally subjective and that this does not give a true reflection of the state …
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Determination of scour susceptibility through rapid assessment
… be expected at nearly 20,000 existing off-system bridges in the State of Kansas to assign a National Bridge Inspection Standards (NBIS) Item 113 coding. A customized methodology for scour evaluation was developed through the guidance of TranSystems Corporation, The Kansas Department of …
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Automating Bridge Inspections Using Prompt-Based Change Detection
Routine bridge inspections are essential for public safety, but manual inspections are very time consuming, costly, and unsafe to inspector.Using UAV’s solves these problems but these come with their own challenges. A key challenge in automating the bridge inspection is that images from different …
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Coverage Planning for Unmanned Aerial Vehicles
… lie on the same plane. This is motivated by bridge inspection application, where the UAV is tasked with visually inspecting planar regions on the bridge. Finally, a general version of the problem where the UAV is allowed to fly in complete 3D space and the environment to be covered is in 3D …
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COCO-Bridge: Common Objects in Context Dataset and Benchmark for Structural Detail Detection of Bridges
Common Objects in Context for bridge inspection (COCO-Bridge) was introduced for use by unmanned aircraft systems (UAS) to assist in GPS denied environments, flight-planning, and detail identification and contextualization, but has far-reaching applications such as augmented reality (AR) and other …
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Implementation of the DER rating system within a power generation environment
… South Africa. This study involved a visual inspection and the rating and analysis of defects of reinforced concrete (RC) structures in an Eskom power generation plant located in Grootvlei in Mpumalanga Province. Visual inspection and condition rating systems form part of an Asset Management …
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Human Computer Interaction Design for Assisted Bridge Inspections via Augmented Reality
… some of the challenges associated with aging bridge infrastructure, this dissertation explores the development and evaluation of a novel tool for bridge inspections leveraging Augmented Reality (AR) and computer vision (CV) technologies to facilitate measurements. Named the Wearable Inspection …
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