Applies To
	Product(s):	STAAD Advanced Concrete Design
	Version(s):	All
	Environment:	N/A
	Area:	Concrete Design
	Subarea:	Column & Shear Wall
	Original Author:	Shreyanka Bhattacharjee Bentley Technical Support Group

RCDC follows ductile detailing as per 13920 for outer ring of boundary element but reduces link dia. & spacing for inner links

As per ductile detailing, for the calculation of confining links (outer links in BE – BE main) of boundary zone, formulation of Ash as per IS 13920, clause 7.4.8 is used. The internal links (BE others) are provided at same spacing with lowest possible diameter to maintain the “h” value in calculation of Ash. At middle zone, the links are provided as per IS 456. As a standard practice RCDC provided links to all longitudinal reinforcement.