Applies To
	Product(s):	STAAD Advanced Concrete Design
	Version(s):	All
	Environment:	N/A
	Area:	Concrete Design
	Subarea:	Pilecap Design
	Original Author:	Abhisek Mandal Bentley Technical Support Group

Using which theory pile-caps are designed in RCDC. Truss or Beam design theory? And why?

RCDC design the pile-cap based on the Beam design theory.

In truss theory, effect of bending moment can’t be considered. Generally, there are moments exists in the column footing thus, designing pile-cap will give added advantage of design pile-cap for axial and bending moments.