Floor Vibration Output dialog
Used to review the floor vibration analysis per AISC Design Guide No. 11 for a specific floor system and load combination. To utilize this feature, the floor system must be defined as a composite deck in the modeling mode.
Opens when the Reports group on the Results ribbon tab.tool is selected from the
The adequacy of a floor system from the standpoint of its vibration serviceability due to human activity, specifically walking excitation, can be assessed using STAAD.Pro. The procedures of Chapters 3 and 4 of the AISC Steel Design Guide Series No. 11 - Floor Vibrations due to Human Activity are used by the program.
The vibration calculation is done for:
- beam or the joist mode
- girder mode
The two modes are then combined to obtain the system frequency and other results of the combined mode using the Dunkerley relationship described in chapter 3 of the AISC Design Guide. Results for the 2 basic modes and the combined mode are provided in a tabular form.
The output for the combined mode consists of:
- the peak acceleration for walking excitation
- allowable acceleration (known in the code as the acceleration limit)
The design criterion as stated in the code in the third paragraph in Chapter 4 is that a floor system is satisfactory if the peak acceleration does not exceed the acceleration limit.
Select a previously defined Composite Deck.
|Load Case||Select the load case for analysis.|
|Check||Performs the floor vibration checks per AISC Design Guide 11.|
|Opens a Print dialog, which is used to create a hard copy of the currently displayed floor vibration report.|