1.0 TENSION
1.2 Concrete Breakout Failure Mode
Calculations A Nc
( continued )
Calculations ACI 318-19 Chapter 17 Provision Comments for PROFIS Engineering
A Nc
Example of minimum edge distance and spacing requirements given in a mechanical anchor approval .
ICC-ES ESR-1917 Table 3
DESIGN |
|
Nominal anchor diameter ( in .) |
|
INFORMATION Symbol Units
|
3 / 8 |
1 / 2
5 / 8
|
3 / 4 |
Min . edge distance c min in . 8 2-1 / 2 2-1 / 2 2-3 / 4 2-3 / 8 3-5 / 8 3-1 / 4 9-1 / 2 4-3 / 4 4-1 / 8 for s ≥ in . 8 5 5 5-3 / 4 5-3 / 4 6-1 / 8 5-7 / 8 5 10-1 / 2 8-7 / 8
Post-installed anchor values for c min and s min are established via testing and can be referenced in the ICC-ES evaluation report ( ESR ) for the anchor .
Reference the Variables section of the PROFIS Engineering report for more information on h ef
.
Reference the Equations section of the PROFIS Engineering report for more information on A Nc
.
Min . anchor spacing s min in . 8 2-1 / 2 2-1 / 2 2-3 / 4 2-3 / 8 3-1 / 2 3 5 5 4 for c ≥ in . 8 3-5 / 8 3-5 / 8 4-1 / 8 3-1 / 2 4-3 / 4 4-1 / 4 9-1 / 2 9-1 / 2 7-3 / 4
Example of minimum edge distance and spacing requirements given in an adhesive anchor system approval .
ICC-ES ESR-3187 Table 12
DESIGN INFORMATION Symbol Units
3 / 8 or # 3
1 / 2 or # 4
Nominal anchor diameter ( in .)
5 / 8 or # 5
3 / 4 or # 6
7 / 8 or # 7
1 or # 8
# 9
1-1 / 4 or # 10
Min . anchor spacing s min in . 1-7 / 8 2-1 / 2 3-1 / 8 3-3 / 4 4-3 / 8 5 5-5 / 8 6-1 / 4
Min edge distance ( Threaded rods )
Min . edge distance ( Reinforcing bars ) c min in . 1-3 / 4 1-3 / 4 2 2-1 / 8 2-1 / 4 2-3 / 4 n / a 3-1 / 8 c min
-
5d ; or see Section 4.1.9.2 of this report for design with reduced minimum edge distances
67 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-19 Provisions