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Flat slab analysis

Flat slab analysis

Flat slab analysis

(OP)
Hi,

For flat slabs is a 2D frame analysis or a finite element model more appropriate for analysis? I mean which would most engineers go for.

Any discussion/suggestion regarding how to model flat slabs along with a combination of columns and load bearing walls would be greatly appreciated.

Thanks in advance



RE: Flat slab analysis

I would do the direct design as applicable or equivalent frame method. I wouldn't use finite elements for slabs unless I was very comfortable with slab design in general, finite elements in general, and the finite element software I would be using. Maybe you could check what you get with the equivalent frame method with a FE model if you have the time, and get into using FE to model slabs that way.

For advanced layouts of slab (non-rectangular plans, vertically and horizontally offsetting columns, strange wall layouts) you have to look at using other ways to analyze slabs like FE models, yield line analysis, or the strip method. But 2 way concrete slabs are not really my cup of tea.

RE: Flat slab analysis

Use the ACI method and ACI design guides.

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RE: Flat slab analysis

I have always used the Equivalent Frame Method.  With computer programs so readily available, I don't see the point of using the Direct Design Method.

DaveAtkins

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