PROFIS Design Guide: US-EN Summer 2021 | Page 255

PART 4 SHEAR LOAD

Pryout Failure Mode ( Concrete Breakout )
Equation V cpg
( continued )
Equation 318-14 Chapter 17 Provision Comments for PROFIS Engineering
V cpg
= k cp
A Na ψec , N ψ ed , N ψ c , N ψ cp , N
N b
A Nc0
Reference the Variables section of the PROFIS Engineering report for information on : ψ c , N
: Modification factor for cracked concrete
k cp
: Coefficient for pryout strength
Reference the Calculations section of the PROFIS Engineering report for information on :
A Nc
: Area of influence for anchors in tension
A Nc0
: Area of influence for single anchor in tension
ψ ec , N
: Tension modification factor for eccentricity
ψ ed , N
: Tension modification factor for edge distance
ψ cp , N
: Modification factor for splitting
N b
: Basic concrete breakout strength in tension
255 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-14 Provisions