2.0 SHEAR
2.1 Concrete Breakout Failure Mode
Calculations V b
( continued )
Calculations ACI 318-19 Chapter 17 Provision Comments for PROFIS Engineering
V b
Case 2 : Another assumption of the distribution of forces indicates that the total shear force would be critical on the rear anchor and its projected area . Only this assumption needs to be considered when anchors are welded to a common plate independent of s . For the calculation of concrete breakout , c a1 is taken as c a1 , 2 .
Case 3 : Where s < c a1 , 1 , apply the entire shear load V ua to the front anchor . This case does not apply for anchors welded to a common plate . For the calculation of concrete breakout , c a1 is taken as c a1 , 1 .
198 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-19 Provisions