Grupo de Estruturas Navais > 3.1 Resistência Última de Estruturas > Publicações

Chen, B.Q., Garbatov, Y. e Guedes Soares, C. (2011), “Automatic Approach for Measuring Deformations in Complex Structures Using Photogrammetry Technique”, Proceedings of the 22nd Pan American Conference of Naval Engineering, Maritime Transportation, Ports Engineering (COPINAVAL2011), September 27 - 30, 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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