United States Department of Transportation
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A Practical Framework for Component-Level Structural Health Monitoring of the Gerald Desmond Bridge
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2023-12-01
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[PDF-31.80 MB]
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Corporate Contributors:United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology ; State of California SB1 2017/2018, Trustees of the California State University Sponsored Programs Administration
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Edition:Final Report
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Abstract:Bridges serve as critical transportation infrastructure, but traditional maintenance inspection to ensure their safety is time consuming, costly, and labor-intensive, especially for larger and more complex structures. This study presents a practical framework for the instrumentation, data acquisition, and remote condition assessment of the Gerald Desmond Bridge, California’s largest cable-stayed bridge. The framework aims to establish a foundation for real-time or near real-time remote health monitoring of the bridge’s critical elements. Through a comprehensive literature review, best practices and recent advancements in sensing technologies and instrumentation strategies utilized in similar cable-stayed bridges worldwide were examined. The study emphasizes the importance of understanding the bridge’s load path, structural redundancy, and the failure mechanisms of critical elements to design an effective monitoring regime.
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