The "Result Beam" member type is a virtual member without stiffness that can be freely arranged in the model, and it is used to integrate the internal forces of members, surfaces, and solids to show them as member internal forces. For example, it can substantially simplify the result evaluation of deep beams.
The video showed examples of how to determine the reinforcement for window and door lintels and a split-level slab. The internal forces at these points were visualized beforehand using a result beam.
