Publicações

Chen, B.Q., Garbatov, Y. e Guedes Soares, C. (2011), “Automatic Approach for Measuring Deformations in Complex Structures Using Photogrammetry Technique”, Congresso Pan-Americano de Engenharia naval, Transporte Marítimo e Engenharia (COPINAVAL XXII), 27-30 Setembro, Buenos Aires, Argentina.

This work presents an automatic approach for measuring deformations in complex structures and transferring that information directly to a finite element model for further structural analysis. Photogrammetry is used as a three-dimensional measurement technique to identify the displacement field from sets of digital images. Three-dimensional deformation models of box girders are analyzed before and after a buckling collapse test. A comparison between the mechanically identified and based on the photogrammetry approach displacements has been performed. It is demonstrated that the output of the photogrammetry analysis can be used as a direct input to analyze imperfect structure based on finite element method. The procedure is validated against direct measurements.

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