PROFIS Design Guide - AC 318-19 July 2022 | Page 272

2.0 SHEAR

2.3 Steel Failure Mode

Calculations ψ _{ed , Na}

( continued )

Calculations ACI 318-19 Chapter 17 Provision Comments for PROFIS Engineering

ψ _{ed , Na}

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

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

= 0.7 + 0.3 ( c _a1 / c _Na

)

Reference the Variables section of the PROFIS Engineering report for more information c _{a , min}

.

Reference the Equations section of the PROFIS Engineering report for more information on ψ _{ed , Na}

.

Reference the Equations and Calculations section of the PROFIS Engineering report for more information on c _Na

.

272 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-19 Provisions