PROFIS Design Guide: US-EN Summer 2021 | Page 283

Pryout Failure Mode ( Concrete Breakout )

Calculations ψ _{ed , N}

( continued )

All six anchors are in shear , so both c _a1 and c _a2

( which are less than 1.5h _ef ) are considered for ψ _{ed , N} when calculating concrete pryout in shear . Since c _a1 is less than c _a2 , ψ _{ed , N} would be calculated for concrete pryout in shear using c _a1 as follows : ψ _{ed , N}

= 0.7 + 0.3 ( c _a1 / 1.5h _ef

)

Reference the Variables section of the PROFIS Engineering report for more information on the following parameters :

c _{a , min}

: Parameter for the smallest fixed edge being modeled

h _ef

: Parameter for anchor effective embedment depth

Reference the Equations section of the PROFIS Engineering report for more information on ψ _{ed , N} when calculating concrete pryout strength .

283 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-14 Provisions