STRUCTURAL WEAKNESS OF THE TWENTY EYES AQUEDUCT IN THE WADI OF CARCAUZ (ALMERIA, SPAIN)

Abstract. The Twenty Eyes Aqueduct is a work of hydraulic engineering with several centuries of history. In the present work, the innovative Cloud-to-BIM-to-FEM methodology is applied, capable of converting BIM models, generated from point clouds, into finite element models. The point cloud was obtained using UAV photogrammetry, carrying out a 3D survey of the current state of the aqueduct and its surroundings. The point cloud obtained has served as the basis for the generation of an HBIM model that accurately represents the geometry of the aqueduct (Cloud-to-BIM). The HBIM model has been transformed into a finite element model that respects the uniqueness of the monument without excessive geometric simplifications (BIM-to-FEM). The structural analysis of the FEM model has been able to evaluate the instability conditions of the assembly in the event of an earthquake, although it does behave adequately in the face of wind actions.