Starting with version 10.00 of spColumn, a model can be made with multiple solid shapes each capable of containing multiple openings.
complex models with multiple solids can be solved by spColumn to design and determine the strength of member cross sections encountered in buildings, bridges, and numerous other structures.
In multi solid models, the user has a choice to merge the shapes into one final combined model or keep the shapes separated without merging them. Shapes can be kept separate to facilitate modification to geometry of the shape and the reinforcing bar arrangement.
The spColumn solver requires merging of multi solid shapes only when they are overlapped.