To perform the concrete design successfully, all parameters of the concrete objects must be defined. This has been done for the surfaces, but not yet for the members. Therefore, the user is required to exclude those objects from the design provisionally. Select the Objects to Design table for this purpose.
Clear the check boxes of the Members, Member Representatives, and Nodes with Punching object type (1) so that only the surfaces are designed. Then click the
button on the table toolbar to start the design (2).