CLOSE-RANGE PHOTOGRAMMETRIC MEASUREMENT OF BRIDGE DEFORMATIONS

In this study, the use of digital close-range terrestrial photogrammetry(DCRTP) for measuring bridge deformations under dead and live load is investigated. A DCRTP system is shown to provide a non-contact, non-destructive means of measurement with the added benefits of digital photography and computer-aided photogrammetry analysis. The fundamental concepts of photogrammetric data gathering and processing are first presented followed by a review of research related to the use of close-range photogrammetry for measurement of structural deformations over the last twenty-five years. Theoretical formulas and finite element analyses were used to further validate the photogrammetry results.

Autorentext

Dr. Kenneth R. Leitch is an Assistant Professor of Civil Engineering at West Texas A&M University. He is involved in engineering education, 3D modeling, photogrammetry, structural, and transportation research issues. He holds BS, MS, and PhD Civil Engineering degrees from New Mexico State University and an MBA from Colorado Christian University.