PROFIS Design Guide: US-EN Summer 2021 | Page 175

PROFIS ENGINEERING REPORT SHEAR LOAD

Concrete Breakout Failure Mode
Variables c a1
( continued )
Variables ACI 318-14 Chapter 17 Provision Comments for PROFIS Engineering
c a1
17.5.2.5 The modification factor for anchor groups loaded eccentrically in shear , ψ ec , V , shall be calculated as
Reference ACI 318-14 commentary Fig . R17.5.2.1b ( Case 2 ). ψ ec , V
=
1
1 + 2e ́V
3c a1
( 17.5.2.5 )
17.5 . 2.6 The modification factor for edge effect for a single anchor or group of anchors loaded in shear , ψ ed , V
, shall be calculated ……………………………………………………….
If c a2
< 1.5c a1 , then ψ ed , V
= 0.7 + 0.3 c a2 ( 17 . 5 . 2 . 6b )
1.5c a1
17.5.2.8 The modification factor for anchors located in a concrete member where h a
< 1.5c a1 , ψ h , V
, shall be calculated as ψ h , V
=
1.5c a1 ( 17.5.2.8 )
h a
Reference ACI 318-14 commentary Fig . R17.5.2.1b ( Case 3 ).
175 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-14 Provisions