The effect of anchorage on the effectiveness of the shear reinforcement in the punching zone

All building codes require well anchored shear systems in the punching zone. The enforced experimental investigation of 10 symmetric punching tests with conventional stirrups and stirrups made of fabric reinforcement shows, that the effectiveness of the shear reinforcement depends on the quality of the anchorage. This result could be confirmed by tests from the literature too. In addition, the punching design approach of DIN 1045-1, 2001 [Tragwerke aus Beton, Stahlbeton und Spannbeton, Teil1: Bemessung und Konstruktion. Beuth Verlag, Juli 2001] is presented.