When you generate forces resulting from prestressing tendons, the forces are replaced with the equivalent external load.
Note: Loads from prestressing tendons are generated for bar elements only.
The tendon assumes the parabolic shape according to the specified values of eccentricities. The loss of prestress and when a tendon does not extend over the whole beam length are not considered.
The equivalent load is defined as bar forces (concentrated and distributed) in the bars' local coordinate system.