If portal frames are modelled and designed in Tekla Structural Designer they will be designed elastically for the forces determined from the 3D analysis, in the same manner as other steel beams and columns.
A more economic design can be obtained by exporting individual frames to Tekla Portal Frame Designer. This industry leading portal frame software performs an elastic-plastic analysis and design and undertakes member stability checks to EC3 or BS5950. Once designed, the resulting sections can then be returned to the Tekla Structural Designer model.
Note: Tekla Portal Frame Designer is a separately purchasable product.