PROFIS ENGINEERING REPORT SHEAR LOAD
Concrete Breakout Failure Mode
Variables h a
( continued )
Variables ACI 318-14 Chapter 17 Provision Comments for PROFIS Engineering
h a
For the post-installed anchors in its portfolio , PROFIS Engineering uses the minimum concrete thickness values ( h min
) given in the anchor approval . Excerpt from ICC-ESR-1917 ( Kwik Bolt-TZ ) showing values for h min
.
ICC-ESR-1917 Table 3
DESIGN |
|
|
|
Nominal anchor diameter ( in .) |
|
|
INFORMATION Symbol
Units
|
|
|
3 / 8 |
1 / 2 5 / 8 |
3 / 4 |
Effective min . embedment
Min . member thickness h ef in . 1-1 / 2 2 2-3 / 4 2 3-1 / 4 3-1 / 8 4 3-1 / 4 3-3 / 4 4-3 / 4 h min in . 3-1 / 4 4 5 5 4 6 6 8 5 6 8 5-1 / 2 6 8 8
Excerpt from ICC-ESR-3187 ( HIT-HY 200 ) showing values for h min
.
ICC-ESR-3187 Table 12
DESIGN INFORMATION Symbol Units
3 / 8 or # 3
1 / 2 or # 4
Nominal Rod Diameter ( in ).
Minimum Embedment h ef , min in . 2-3 / 8 2-3 / 4 3-1 / 8 3-1 / 2 3-1 / 2 4 4-1 / 2 5
Maximum Embedment h ef , max in . 7-1 / 2 10 12-1 / 2 15 17-1 / 2 20 22-1 / 2 25
Minimum Concrete Thickness
5 / 8 or # 5
3 / 4 or # 6
7 / 8 or # 7 h min in . h ef + 1-1 / 4 h ef
+ 2d 0
1 or # 8
# 9
1 / 4 or # 10 if h a
< 1.5c a1 : ψ h , V
= √ ( 1.5c a1 / h a
) if h a
≥ 1.5c a1 : ψ h , V
= 1.0
Reference the Variables section of the PROFIS Engineering report for more information on the parameter c a1
.
Reference the Calculations section of the PROFIS Engineering report for more information on the parameters A Vc and ψ h , V
.
180 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-14 Provisions