Until the 2020.b version, the reinforcement of the segments was composed of reinforcement that was distributed in layers and additionally could have edge elements at the ends.
In the 2020.c version, users can define confined reinforcement along the whole segment. The length of the edge elements is not checked in this type of segment because the entire segment is considered to be confined.
During the design process, the program analyses, for each segment, whether edge elements must be provided and their required length. In the design options, two limits have been included to determine whether or not confinement reinforcement is to be placed throughout the entire segment; one that depends on the lengths of the edge elements and another that depends on the length to thickness ratio of the segment.