Select the Main reinforcement tab in the Reinforcement Pattern dialog to define the principles of selecting the upper and lower main reinforcement.
Bottom reinforcement - Determines the diameter of reinforcement, define the minimum and maximum spacing between reinforcement layers.
U-type anchorages - Imposes the manner of anchoring the lower main reinforcement and to define its parameters (diameter and arm length).
In top reinforcement, all the options for the bottom reinforcement are available except the anchors. It is also possible to impose identical diameter for the top and bottom reinforcement.