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Punching shear on L-shaped corner column?

Punching shear on L-shaped corner column?

Punching shear on L-shaped corner column?

(OP)
Hello, does anyone know of anywhere I can find a good worked-out example of how to checking punching shear on an L-shaped corner column supporting a non-prestressed concrete flat plate?

Thanks.

RE: Punching shear on L-shaped corner column?

I expect any good text book would cover punching shear.  For an L-shaped column, take a look at the commentary to ACI 318-02 11.12.2.1 for the perimeter and other parameters.  That is if your governing code references the ACI for use.  You may also try the PCA's Notes on ACI 318-02.

RE: Punching shear on L-shaped corner column?

As what UcfSE states, PCI's Notes on ACI 318-02 has a worked example (Ex 16.2) of a L-shaped column for punching shear capacity BUT it is an interior column. You will need to modify your shear perimeter to account for corner effects.

RE: Punching shear on L-shaped corner column?

(OP)
Thanks guys.

But more specifically, I was hoping to find a worked-example that shows how to find the shearing stresses caused by unbalanced moments (obviously the direct shearing stresses are simply Vu/bod) on an L-shaped corner column on such an unusual non-square perimeter...like this:


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