Single Anchor
When there is only one anchor or there are muliple anchors but the anchor spaced more than the citical spacing as specified in ACI 318-14 clause 17.2.1.1.
Group Anchor
When there are muliple anchors and two or more anchors spaced less than the citical spacing as specified in ACI 318-14 clause 17.2.1.1.
ACI 318-14 Clause 17.2.1.1
Single Anchor Case
