Assessment of Stiffness Beams Subjected to Combined Shear and Torsion Designed Using STM

Experimental tests of 6 reinforced concrete beams were performed in the laboratory of The Faculty of Civil Engineering and Architecture Environment in Rzeszow University of Technology. The beams were being loaded gradually and for each stage of the load, cracks, the angle of rotation of the cross and displacement were measured. The experimentally determined beam load-bearing capacities TR and stiffness under torsion were compared with the ones calculated from equations based on the well-known theories.