The scope is primarily defined by the reference design document ^{Ref. 2} but the following additional limitations and assumptions should be noted.

• The design guidance is based on composite floors acting compositely with the steel beams. It is unclear whether the design approach is directly applicable to non-composite construction.
• For simplicity and to avoid the necessity of Tekla Structural Designer having to identify all the beams in the area selected for vibration assessment, the component of the unit mass from the self-weight of the beams is ignored. This will lead to a slight inaccuracy in the participating mass that is conservative (more mass is advantageous). Note, however, that beam self-weight is included in the calculation of beam deflection but only when the self-weight loadcase is included in the load combination.
• Cantilever beams are excluded from the analysis.
• Cold formed sections are excluded.
• Precast slabs are excluded.