Shear of structural concrete members and pure mode II testing

The analysis of concrete members under shear action requires reliable material parameters. A new testing method has been developed which yields pure mode II. This has been demonstrated by numerical analysis as well as by analytical treatment. Tests have been performed on a high strength concrete (cylinder compressive strength of 85 MPa) which confirm the theoretical predictions. It is discussed how the new achievements can be used in predicting a size effect in concrete members under shear action.