You can use camberingdeforming that curves a part to compensate for deflection which arises due to loads on the structure
Cambering is typically an upward curvature defined for a beam.
to pre-camber parts, in other words, to curve long heavy sections that will settle on site and become flat. Use cambering to show the natural camber of a prestressed part in a model. Cambering affects the position of cuts, skews, and embeds in the model.
Double-click the part to open the part properties.
Go to the Deforming section.
In the Cambering box, define the degree of camber.
Tekla Structures cambers the part in the local z direction.