PROFIS ENGINEERING
Reference ESR-4266 Table 4 for ϕ steel( tension) and ϕ concrete( tension) values.
Reference ESR-4266 Table 6 for ϕ steel( shear) and ϕ concrete( shear) values. Tension nominal strength design strength factored load % utilization comments
steel strength N sa( lb / anchor) 17,535
concrete breakout
pullout strength
N cbg( lb) 19,584
N pn( lb / anchor) N / A ϕ steel = 0.75 ϕN sa( lb / anchor) 13,151 ϕ seismic = N / A ϕ concrete = 0.65 ϕN cbg( lb) 12,730 ϕ seismic = N / A ϕ cocrete = 0.65
ϕN pn
N / A
N ua, i( lb / anchor) 1127
N ua, g( lb) 4200
N ua, i( lb / anchor) 1127
( N ua, i / ϕN sa) 8.6 %
( N ua, g / ϕN cbg) 33.0 %
( N ua, i / ϕN pn) N / A %
OK
OK CONTROLS
Shear nominal strength design strength factored load % utilization comments
steel strength
concrete breakout( col 1,3)
towards x- edge
concrete breakout( col 1,3)
parallel to x- edge
concrete breakout( row 1,2) towards y- edge
concrete breakout( row 1,2)
parallel to y- edge
concrete pryout
Table 44. Interaction
V sa( lb / anchor) 10,255
V cbg, col 13( lb) 6803
V cbg,// col 13( lb) 16,592
V cbg, row 12( lb) 7446
V cbg,// row 12( lb) 14,892
V cpg( lb) 40,896 ϕ steel = 0.65 ϕV sa( lb / anchor) 6666
V ua, i( lb / anchor) 906
ϕ concrete = 0.70 Note( page 147) ϕV cbg, col 13( lb) 4762
V ua, col 13 = V ua, res( lb)
3606 ϕ concrete = 0.70 Note( page 147) ϕV cbg, col 13( lb) 11,614
V ua, row 12 = V ua, res( lb)
3606 ϕ concrete = 0.70 Note( page 149) ϕV cbg, row 12( lb) 5212
V ua, row 12 = V ua, res( lb)
3606 ϕ concrete = 0.70 Note( page 149) ϕV cbg, col 13( lb) 10,424 ϕ concrete = 0.70 ϕV cpg( lb) 28,627
V ua, row 12 = V ua, res( lb) 3606
V ua, res( lb) 3606
( V ua, i / ϕV sa) 13.6 %
( V ua, x / ϕV cbg, col 13) 75.7 %
( V ua, y / ϕV cbg, col 13) 31.1 %
( V ua, y / ϕV cbg, row 12) 69.2 %
( V ua, y / ϕV cbg, row 12) 34.6 %
( V ua, res / ϕV cpg) 12.6 %
N / A
OK
OK CONTROLS
OK
OK
OK
OK
Tri-Linear: N ua ϕN n
+ V ua ϕV n
≤ 1.2
0.33 + 0.757 = 1.09 < 1.2 OK
Parabolic: N 5 5
ua 3 V ua + 3 ≤ 1. 0 ϕN n ϕV n
ACI 318-19 Eq.( 17.8.3)
Reference ACI 318-19 commentary R17.8.
( 0.33) 5 / 3 +( 0.757) 5 / 3 = 0.158 + 0.629 = 0.787 < 1.0 OK
October 2025 151