Hello you know In the program, all slabs with one end open are perceived as consoles in the first place. The type of reinforcement axis does not affect the slab analysis results. The reinforcement type of the slab can be determined by examining the slab analysis results. Let's examine the M11(1 reinforcement axis) moments of the D01 slab in the attached picture. Positive moments occur on the left edge of the slab. Bottom reinforcement is needed to meet these moments. In areas close to the support Therefore, the reinforcement type of the reinforcement axis can be arranged as top+bottom reinforcement.