![]() For the photogrammetric measurements the surface is prepared by a grid of targets. These are tension, shear beams and plate elements. With the presented experiments different structural elements of prestressed, reinforced and textile concrete are investigated. Regarding the research of crack evolution at the surface of the element, photogrammetry is approved, because it allows an expanded investigation of larger objects with high precision. The efficiency of the reinforcement to the bearing capacity depends among other on the limited crack evolution. Controlling and monitoring of crack origin and evolution of concrete elements is an important task in research of building materials.
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