COMPARATIVE STUDIES ON THE DEFORMATION BEHAVIOUR OF FRP AND STAINLESS STEEL-REINFORCED CONCRETE BEAMS WITH A T-SHAPED CROSS-SECTION

In this study, comparative investigations are carried out on GFRP and stainless steel reinforced concrete beams with the same degree of reinforcement in the 4-point bending test. The specimens have a reduced cross-section in the centre of the component and are T-shaped. In addition to displacement transducers, fibre-optic measurement technology is used to map the stress-related bar strain over the length of the component, as well as photogrammetry. The aim is to identify and evaluate the differences in the deformation behaviour of concrete beams with flexural tensile reinforcement made of GFRP and stainless steel.