PART 3 TENSION LOAD
Steel Failure
Calculations N sa
( continued )
Calculations ACI 318-14 Chapter 17 Provision Comments for PROFIS Engineering
N sa
PROFIS Engineering uses the pre-calculated N sa
-values given in the ICC-ESR for the mechanical anchors in its portfolio to define the nominal steel strength in tension . Excerpt from a mechanical anchor ICC-ESR showing N sa
-values used in PROFIS Engineering .
ICC-ESR-3187 Table 3 |
Nominal anchor diameter ( in .) |
DESIGN INFORMATION |
Symbol |
Units |
|
|
|
3 / 8 |
1 / 2 |
5 / 8 |
3 / 4 |
Min . specified yield strength |
f y
|
lb / in 2
|
100,000 |
84,800 |
84,800 |
84,800 |
Min specified ult . strength |
f uta
|
lb / in 2
|
125,000 |
106,000 |
106,000 |
106,000 |
Effective tensile stress area |
A se , N
|
in 2
|
0.052 |
0.101 |
0.162 |
0.237 |
Steel strength in tension |
N sa
|
lb |
6,500 |
10,705 |
17,170 |
25,120 |
PROFIS Engineering uses the pre-calculated N sa
-values given in the ICC-ESR for the adhesive anchor systems in its portfolio to define the nominal steel strength in tension . Excerpt from an adhesive anchor ICC-ESR showing N sa
-values used in PROFIS Engineering .
ICC-ESR-3187 Table 14
DESIGN INFORMATION Symbol Units
Nominal rod diameter ( in .) 3 / 8 1 / 2 5 / 8 3 / 4 7 / 8 1 1-1 / 4
ASTM F1554
Gr . 36
Rod effective crosssectional area
A se in 2 0.0775 0.1419 0.2260 0.3345 0.4617 0.6057 0.9691
N sa in - 8,230 13,110 19,400 26,780 35,130 56,210
138 NORTH AMERICAN PROFIS ENGINEERING ANCHORING TO CONCRETE DESIGN GUIDE — ACI 318-14 Provisions