Sometimes these conditions are not properly identified during their design or, basically, could not have been predicted because of some accidental circumstances that emerge at the site. Therefore, such a combination of testing methods can be used in non-destructive diagnostics of structures and is an interesting alternative for the standard approach, in which the measurements are done in limited number of points.Įngineering, mechanical, aerospace, offshore structures, etc., or their parts, elements, or connections are subjected to various and complex loading conditions during their life cycle. Good correspondence between in situ values and FEM estimations was achieved. Thus, new quality in measurements is introduced. These have higher accuracy and therefore can be used as reference. The accuracy of laser mapping was significantly increased using the information coming from total station and inductive sensors.
The results produced by terrestrial laser scanning were used to build a precise image of structure deformation in 3D space during the tests.
In situ measurements were done with the aid of: inductive sensors, optical total station, and terrestrial laser scanner. Load test design was based on numerical simulations performed by means of finite element method (FEM). Periodic diagnostics of bridge deformations was done one year after it was built. As an effect of an original concept a detailed and precise information about the structure short-term response was collected. The article describes interdisciplinary and comprehensive non-destructive diagnostic tests of final bridge inspection and acceptance proposed for a soil-steel bridge made of corrugated sheets, being the European span length record holder (25.74 m).
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