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Two way slab design

Two way slab design

Two way slab design

(OP)
Does anyone have a good reference or software package for designing a two way or one way slab.  It's for a residential slab in the US on a pier and grade beam foundation in weak soil conditions.  

Thanks--Peter  

RE: Two way slab design

Do you really need a software package for that? Sounds like hand calcs would be adequate.

RE: Two way slab design

(OP)
Hi sdz,

I looked at ACI and PCA references.  The Simplified Design for Concrete Buildings book from PCA has a 40 page section on two way slabs.  It looks like it is mostly geared towards flat slabs on columns, not slabs on beams.  So, it's a confusing design project for me and I wish there was a conservative prescriptive guide to avoid an analytical solution.  I have about 6 irregular slab spans and don't want to do that much work for a single family residence.  (Just complaining!!)

By the way would I call the grade beam supports "spandrel beams"?

I found a slab designer on the Internet.  It seems simple and I wonder if it gives accurage results:

http://www.oytec.net/edu_ref/slab_designer.htm  

RE: Two way slab design

petrosoft

The ACI code method is a prescriptive method. Just use it. It gives top and bottom moment factors.

Otherwise do some "engineering" to sort it out.

RE: Two way slab design

not tryng to be rude here (especially as some of my posts might be fundemantal to some), but why is someone who cant even design a simple one or two way slab designing one. This is pretty basic stuff really?  

RE: Two way slab design

herewegothen,

You forgot to add that, if you do not know how to do it, then you should not even consider using software to do it. Software is a design aid, not an engineer. No engineer should use a software package unless he is competent in the areas of design it is covering.

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