Analysis Effects
Camber in walls is computed as part of the members initial bow which is defined as the camber plus the additional bow defined by the user. The initial bow is used by determining the panels initial locations prior to any restraints being applied.
Applied Prestressing Loads
The prestressing strands are converted to applied loads acting on the member. At each analysis point an axial load and a point moment is computed and applied to the member. For a beam-spring system these loads are added to each wythe individually. These internal forces are run on the system and deflections are computed. The prestressing forces assume 15% losses when computing the camber at erection. This assumed loss is also used for transfer lengths.