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RC slab supports

RC slab supports

RC slab supports

(OP)
Im designing RC slab - an extension of existing slab above house entrance.
The only load is dead load and snow.

Slab is 140 mm thick. I will anchor it to the existing slab also 140 mm thick(in the middle).
One edge of a slab in unsupported and one is partly supported (on the wall).

I already designed a slab and it looks fine, however I m not comfortable about the fact that the slab system pretty much depends only on anchors (no bending capacity, only shear on rebars) especially because I have free edges.

What is your experience in this topic, any suggestion? should I worry?



RE: RC slab supports

If you can't develop moment capacity in the connection to the existing slab then this will not work with this configuration.

You could add a column at the free corner and some edge beams.

RE: RC slab supports

How can you possibly say you have "designed" the slab? There has been no attempt to satisfy statics or equilibrium.

RE: RC slab supports

Is the new (or existing) slab tied into [what appears to be] the supporting wall with re-bar that can transfer the developed forces? If that is the case, you might be in business. I'd also closely check deflection.

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