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Base Plate for Moment Frame-Shear Transfer

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A question came up today when designing a base plate for a steel moment frame which resists lateral forces.  We  are considering using a standard base plate with anchor bolts and 1 1/2" of grout.

How is shear considered to transfer from the base plate, through the grout bed and into the footing?  Do anchor bolts act in bending, or does grout adequately transfer the load thru interlock against steel and concrete.

Or, should a different method be considered, such as embedding the base of the column into the footing.

Thanks in advance...