Need a book? Engineering books recommendations...
RE: HOW TO DETERMINE A FLEXIBLE DIAPHRAGM[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: HOW TO DETERMINE A FLEXIBLE DIAPHRAGM
- From: "Eli Grassley" <elig(--nospam--at)psm-engineers.com>
- Date: Wed, 6 Oct 2004 11:44:11 -0700
I don’t think you should ever consider a concrete floor as “flexible.” The issue I think you need to consider for your model is if the floor will even have enough surface area to resist forces and act in “diaphragm action.” A “huge” opening isn’t rigid or flexible…it’s air.
If the openings aren’t too big, relative to the total floor area, in order to transfer the diaphragm forces around the openings you will have to add some type of reinforcing around the openings – which should stiffen up the floor and make it act in a rigid manner.
hi to all folks.
i have a trouble with flexible diaphragms. I´m working on a Thesis about this and i have floors of reinforced concrete, i think they are flexibles because they have huge openings on the floors.
My question is how should i modelate a bulding in a software to determine if it is rigid or flexible.
I know that it´s flexible when:
Max Lateral Deformation> 2 * Story Drift
My big problem as i said, HOW SHOULD I MODELATE?
A) Modelate as Rigid then i compare the desplacements as above?
B) Modelate as flexible then i compare....
Or maybe there is another way to check if it is flexible.
Thanks in advance.
- Prev by Subject: HOW TO DETERMINE A FLEXIBLE DIAPHRAGM
- Next by Subject: Re: HOW TO DETERMINE A FLEXIBLE DIAPHRAGM
- Previous by thread: Re: HOW TO DETERMINE A FLEXIBLE DIAPHRAGM
- Next by thread: Maximum Number of Wood-Framed Stories?