Dining Area Vibration Values

[Galambos]

Im looking for Dining Area vibration values for a corporate dining hall and I think I will be going with "Assembly", however i wanted to see if anyone had a reference for this type of space or input.

Thoughts?

Accel. Limit 0.50%g
DL: 4 psf
LL: 2 psf
Damping Ratio: 0.02

 

[Galambos]

I should point out that there is hvac and a ceiling below, and tables as furniture on the slab on metal deck.

im really curious if there is a higher accel limit than 0.50%g recommended.

I go from W21x44 girders with W16x26 nrsmd to W24x55/W21x44's.

 

[rob768]

I don't know the actual values, but DNV has comfort rules that are applicable. We use them for the evaluation of vibration measurements on yachts (and ships in general).
Google for DNV Comfort Rules and you'll stumble upon them.

 

[csd72]

Is there likely to be dancing in this dining area?

 

[Neilmo]

Hi Galambos,

Would this document be of any help to you.

Regards

 

[JoshPlumSE]

I would be carful with this and would review the AISC design guide on the subject as well as some of the less technical MSC articles.

I recall seeing a nearly identical example somewhere. Just becasue there is no annoying vibration (as far as public use or walkway area is concerned) does not mean that it will be an acceptable dining area.

The exact example (as I remember it) was a conversion of an existing public area (in a nice hotel) into a fancy restaurant. Dinners enjoying a nice dinner are much, much less tolerant of vibrations than folks walking around a public common area. It sort of ruins ambience I guess.

 

[ajose]

Hi Galambos,

For floor vibration it´s just enough to have the area loaded and some one walking. I have already test my theory on some one design.

So if you are designing on stee there are several recomendations:

AISC Design Guide 11 - Floor Vibrations Due To Human Activity

Structural Steel education Council - Design practice prevent floor vibration - Naeim

Earthquake Engineering in Australia, Floor vibration due human excitation - Saidi et al

Tips Designers floor vibration - Murray.

So like you can see on those papers and recomendations, the clue is the right beam. Not so light (big vibrations, low cost) or so heavy (no vibration, high cost).

It is just a standard procedure.


ajose

 

[BAretired]

User's Guide - NBC 2005 treats "Deflection and Vibration Criteria for Serviceability and Fatigue Limit States" in Commentary D.

Table D-3 is titled "Recommended Acceleration Limits for Vibrations due to Rhythmic Activities"

Occupancy Acceleration Limit

Office and Residential 0.4 to 0.7

Dining and weightlifting 1.5 to 2.5

Rythmic activity area

in office or residential bldg. 4 to 7

in stadium or arena 10 to 18

BA