3D Modeling Education Laser Scanning

Three-dimensional Laser Scanning for Bridge Inspections

image of bridgeThree-dimensional Laser Scanning
Three-dimensional Laser Scanning

This paper explores the use of three-dimensional laser scanning to evaluate deteriorated steel bridge girders due to corrosion. Initially, a naturally corroded beam from a decommissioned bridge in MA was scanned in the laboratory, and thickness contour maps were developed for mapping the remaining material of corroded parts. The contours are compared to thickness measurements obtained by ultrasonic thickness gauge, and the results validate the efficiency of 3D scanning as a potential technology for bridge inspections.

Then, in a second phase, experimental testing of a corroded girder is performed to obtain the capacity and the mode of failure. Finally, in the last part of the paper, the 3D scanning data are combined through an automated procedure with finite element analysis and analytical provisions to examine whether 3D scanning can inform these two tools reasonably for accurate capacity predictions. The results provide good agreement between experimental and predicted failure loads, paving the way for a more efficient, safe, and time-saving inspection protocol.

From a paper by Tzortzinis, et al.

For the complete paper on three-dimensional laser scanning CLICK HERE.

Note – If you liked this post click here to stay informed of all of the 3D laser scanning, geomatics, UAS, autonomous vehicle, Lidar News and more. If you have an informative 3D video that you would like us to promote, please forward to editor@lidarnews.com and if you would like to join the Younger Geospatial Professional movement click here

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: