The reference upon which Tekla Structural Designer's floor vibration check is based is the main limiting factor with regard to scope. This publication is AISC Steel Design Guide Series 11: Vibrations of Steel-Framed Structural Systems Due to Human Activity Second Edition, otherwise referred to as DG11. ^{Ref. 1}

You are able to define an area on a particular floor level that is to be subject to the vibration response analysis and design. The layout of beams in real multi-story buildings can be of almost any configuration. The methodology adopted in DG11 is only applicable to regular structures which by and large have to be created from rectilinear grids. It is your responsibility to make an appropriate selection of the beams etc. that are to be the basic components of the idealized case.

As you proceed through the input making your selections, Tekla Structural Designer will, where it is possible to do so, interrogate the underlying model and retrieve the appropriate data. Once all the data has been assembled, you are then able to perform the check, after which a detailed set of results will be available for review. If you are unhappy with the outcome of your choices you can close the results window and make alternative selections by editing the Floor Vibration Check item properties.