Yield-Line Software for RC slabs
Yield-Line Software for RC slabs
(OP)
Recently read this Structure magazine article: http://www.structuremag.org/?p=9007
Any thoughts about this type of analysis software? It seems like [in the near future] it could be much cheaper and practical for complicated RC slab design than trying to perform plastic analysis with ANSYS and the like.
Any thoughts about this type of analysis software? It seems like [in the near future] it could be much cheaper and practical for complicated RC slab design than trying to perform plastic analysis with ANSYS and the like.
"It is imperative Cunth doesn't get his hands on those codes."






RE: Yield-Line Software for RC slabs
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Yield-Line Software for RC slabs
However in saying that... it could be useful for getting the column mushroom reo down.
RE: Yield-Line Software for RC slabs
RE: Yield-Line Software for RC slabs
"It is imperative Cunth doesn't get his hands on those codes."
RE: Yield-Line Software for RC slabs
If software could do all of the following, I'd be on board:
1) use limit analysis to establish reinforcing demand.
2) allow the user to lay out a rationalized reinforcing scheme.
3) perform some kind of valid deflection check on the rebar as set out.
Another issue that I'm not clear on is how one would efficiently determine bar cut offs coming out of a two way slab limit analysis where the yield lines are somewhat randomly oriented. The problem studied in the article conveniently used a uniform mat top and bottom. That wouldn't be so well received off campus.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Yield-Line Software for RC slabs
Whenever I see a slab without enough steel over a column, it just has big ugly cracks that nobody will accept. It hasn't been the reason for a collapse.
RE: Yield-Line Software for RC slabs
I don't like the sound of that. The top bars over the columns are the most important reinforcing bars in the slab - and when you look at the tonnage of steel in the slab, the top bars over the columns constitute a fairly small percentage of the overall. To reduce that steel further makes me nervous. But I'm an old dinosaur - so don't pay me no nevermind...