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tmin for Prying

tmin for Prying

tmin for Prying

(OP)
Hi,

New to this so hopefully I've posted in the correct area.

In the 14th edition of the AISC's Steel Construction Manual, section 9-10 (connections) gives a formula which allows you to calculate the minimum plate thickness required to eliminate prying (tmin).

The formula uses the ultimate plate/element strength (Fu) rather than the yield strength (Fy). Is this correct or is it a typo?

All other variations of this tmin formula I can find uses Fy and not Fu as stated in the latest edition. Not too sure if this is due to changes in the Specification from 360-05 to 360-10?

Any views would be greatly appreciated.

Cheers,

Bob

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