Durchstanzbemessung von Doppelkopfankern nach Europäischen Technischen Zulassungen

Punching shear design of double-headed anchors according to European Technical Approvals

The introduction of EC2 in structural engineering led to an extensive transformation of the existing guidelines for the design against punching shear failure. Especially reinforcement types consisting of double-headed anchors are affected. In Germany, the use of these special punching shear reinforcements was previously regulated by national approvals. The verification procedure was carried out according to DIN 1045-1. In order to satisfy the design concept according to EC2, new approval documents were required. Meanwhile European Technical Approvals were issued. However, in some important aspects the specified design method of double-headed anchors differs from EC2. The paper gives an overview of the various rules and their backgrounds. A design example demonstrates the general design process.