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CIV - Civil Infrastructure Vision© v1.0: Bridge Calibration User Manual and Validation Manual
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2021-12-01
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[PDF-8.66 MB]
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Alternative Title:Evaluating Bridge Behavior Using Ultra-High Resolution Next-Generation Digital Image Correlation (DIC):Applications in Bridge Inspection and Damage Assessment [Project Title]
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Edition:Research Report (Sep 2017-Dec 2020)
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Abstract:An integrated software/hardware system was developed that can be used to monitor surface deformations on structural components ranging from small-scale material-test coupons, to full-scale bridge members. The system delivered to the Texas Department of transportation is dubbed the Civil Infrastructure Vision (CIV) System and is intended to measure bridge deformations and strain during load testing. In the Bridge Calibration edition, the CIV system is calibrated for measuring deformations on large-scale specimens that are 40ft to 110ft away from the cameras. Accuracy of measurements are on the order of a few thousandths of an inch over the full measurement volume. The non-contact system offers several advantages over traditional contact measurement methods, including: ease and speed of setup, reduction in traffic disruptions, and distributed measurements over large areas of a structural system (as opposed to point measurements). The system is based on principles of Digital Image Correlation (DIC) and spatial triangulation to determine the 3D spatial coordinates of user-selected targets. In the CIV system, targets can be selected at any point on the surface of the structural system being monitored. A user manual and a validation manual are provided, which describe the system, how to use it, and how to validate its accuracy over a measurement volume.
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