I would suggest reviewing ACI 336 "Suggested Analysis and Design Procedures for Combined Footing and Mats". I used to be a member of that committee and we provided typical design procedures and assumptions. This would be a good place to start and then you can move from the references listed in...
Check ACI 223 "Standard Practice for the Use of Shrinkage-compensating Concrete". In addition, check out the web site for CTS cement which makes the expansive cement for shrinkage compensating concrete. They have FAQ's along with structural design recommendations. And you can always ask them...
ACI 318 in the "Definitions" section defines columns as "member with a ratio of height-to-least lateral dimemsion exceeding 3 used primarily to support axial compression load."
