Composite Joist Vibrations

[epitome1170]

Does anyone have any design guides or literature on vibrations of a composite joist system (on bearing walls)?

All of my vibration literature covers composite beams and non-composite beams/joists, but nothing seems to cover this type of system.

 

[JBR87]

Design Guide 11 from the AISC and CISC uses a deflection criteria to find the floor systems natural frequencies (joist/beams, girders and combined)

I would assume that the wall (your girder) does not delfect therefore you only have to worry about the composite joist's properties.

hope this helps

 

[steellion]

Non-composite joists are treated as "composite" when it comes to determining I for vibration calculations in AISC Design Guide #11, so I would just follow along with that and ignore the studs to start and see where that gets you.

 

[a2mfk]

I seem to remember SJI had a program for a couple hundred bucks for vibration, pretty old and basic DOS type thing. Been a long time since I designed a joist floor...

 

[haynewp]

Get FloorVibe.

 

[271828]

Also, read Design Guide 11 Sections 3.2 and 3.6.