ABSTRACT
This paper presents results of experimental tests of second generation trapezoidal sheets of various heights and thicknesses. The presented research program and test stand were prepared in order to meet the assumptions of the calculation model and to eliminate additional unfavourable factors influencing the ultimate bearing capacity. A series of tests of trapezoidal sheets of various heights (135 and 153 mm) and of various thicknesses - 3 thicknesses for each type of sheet, was carried out. In total, 12 sheets were tested - 2 samples of each thickness. The results of the experimental tests were used to verify the numerical FEM model, which in turn will be used to carry out a dozen of parametric analyses necessary for the process of optimizing the geometry of the troughed sheet as the final task. The conclusions turned out to be promising and therefore the created model can be used in planned parametric analyses.
