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Puddling of Concrete Slabs

Puddling of Concrete Slabs

Puddling of Concrete Slabs

(OP)
I have started a debate with a couple of my colleagues.  I would love to get some opinions/feedback.  In our office typical details, we show that for corner columns (in particular) that have a concrete strength greater than the slab strength, puddling must be coordinated on site such that the concrete strength at the slab/column joint is equal to the column concrete strength.  This is to satisfy Clause 10.12, Transmission of Loads Through Floor System, of the CSA A23.3-94.  I quote clause 10.12.3:  "The resistance of the column in the joint region . . . ".  However, I interpret the "resistance" of the "joint region" as satisfying bearing.  Others say it is axial resistance.  Am I wrong?

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