Vibration Check for Joist Supported Floor
Vibration Check for Joist Supported Floor
(OP)
We have a note on drawing that joist designer has to perform vibration check for floor supported on joists.
But joist guy is still insisting that we have to provde him inertia values.
Do we still need to check vibrations for these joists.
Beam supporting joists are design as non-composite.
But joist guy is still insisting that we have to provde him inertia values.
Do we still need to check vibrations for these joists.
Beam supporting joists are design as non-composite.






RE: Vibration Check for Joist Supported Floor
RE: Vibration Check for Joist Supported Floor
If the joist supplier now finds there is a problem, how do you solve it? With a big change order? What if you have to add concrete to the system?
RE: Vibration Check for Joist Supported Floor
I need to check analysis.
Joists are spaced 3'-8" o/c and floor consists of 5" concrete deck i/c 1.5" composite deck. Also joist spacing is half than the design span of concrete deck.
RE: Vibration Check for Joist Supported Floor
RE: Vibration Check for Joist Supported Floor
I agree with jike that it would be impractical to leave this for a component supplier.
We use FloorVibe.exe program which was developed by Murray, and reflects the requirements of Design Guide #11. Very simple program to use, and it allows for quick checking of a lot of different systems and combinations of beams, joists, decks, concrete thicknesses, etc.
RE: Vibration Check for Joist Supported Floor
Have you developed that sofware or is from a software company.
I also don't want to believe in black box results too, so manual calcs are vital.
RE: Vibration Check for Joist Supported Floor
It my understanding that the company is owned by (or very closely associated with) Thomas Murray who is pretty much the 'guru' of floor vibration reasearch.
The website is: http://www.floorvibe.com/
RE: Vibration Check for Joist Supported Floor
RE: Vibration Check for Joist Supported Floor