Values proposed for hook lengths

In compliance with DIN 1045-1, table 26, and DIN EN, image 8.1, the limit value that separates the 'angle hook' and 'hook' anchorage elements is 150 degrees. For stirrups, you need to use the 'angle hook' anchorage element and a projection of 10ds.

The values proposed for the hook length are calculated based on the following table. This way, continuously increasing bar lengths for bending angles > 90 degrees can be taken into account. The values in-between are determined by a linear interpolation.