According to DIN, a factor of k=1.4 is used to determine the maximum resistance VRd,max. According to EOTA, this k-factor depends on the manufacturer; for example, it is 1.50. In the required reinforcement calculation, the DIN value was used as a fixed value. Now, the manufacturer-specific k-value is used.
EOTA Punching Reinforcement | k-Factors Reinforcement Calculation
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