Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 207

Anchor Fastening Technical Guide , Edition 22
Table 11 — Load adjustment factors for 5 / 8-in . diameter threaded rods in uncracked concrete 1 , 2 , 3
5 / 8-in . threaded rods uncracked concrete
Spacing factor in tension
ƒ AN
Edge distance factor in tension
ƒ RN
Spacing factor in shear 4
ƒ AV
┴ Toward edge
ƒ RV
Edge distance in shear
⃦ To edge
ƒ RV
Concrete thickness factor in shear 5
Embedment
in .
3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2
h ef
( mm )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
1-3 / 4
( 44 )
n / a
n / a
n / a
n / a
0.39
0.26
0.19
0.11
n / a
n / a
n / a
n / a
0.09
0.05
0.04
0.02
0.187
0.10
0.08
0.05
n / a
n / a
n / a
n / a
3-1 / 8
( 79 )
0.62
0.60
0.57
0.54
0.52
0.32
0.23
0.14
0.56
0.54
0.53
0.52
0.22
0.12
0.09
0.06
0.45
0.25
0.19
0.11
n / a
n / a
n / a
n / a
4
( 102 )
0.65
0.62
0.59
0.55
0.62
0.36
0.27
0.16
0.58
0.55
0.54
0.53
0.32
0.18
0.14
0.08
0.62
0.36
0.27
0.16
n / a
n / a
n / a
n / a
4-5 / 8
( 117 )
0.67
0.64
0.60
0.56
0.69
0.40
0.29
0.17
0.59
0.56
0.55
0.54
0.40
0.22
0.17
0.10
0.69
0.40
0.29
0.17
0.60
n / a
n / a
n / a
5
( 127 )
0.68
0.648
0.61
0.57
0.74
0.42
0.31
0.18
0.60
0.57
0.56
0.54
0.45
0.25
0.19
0.11
0.74
0.42
0.31
0.18
0.63
n / a
n / a
n / a
6
( 152 )
0.72
0.68
0.63
0.58
0.891
0.47
0.35
0.20
0.62
0.58
0.57
0.55
0.59
0.33
0.25
0.15
0.89
0.47
0.35
0.20
0.69
n / a
n / a
n / a
7
( 178 )
0.76
0.71
0.66
0.59
1.00
0.54
0.40
0.23
0.64
0.59
0.58
0.55
0.75
0.42
0.31
0.19
1.00
0.54
0.40
0.23
0.74
n / a
n / a
n / a
7-1 / 8
( 181 )
0.76
0.71
0.66
0.60
0.55
0.40
0.24
0.64
0.59
0.58
0.56
0.77
0.43
0.32
0.19
0.55
0.40
0.24
0.75
0.62
n / a
n / a
8
( 203 )
0.80
0.74
0.68
0.61
0.62
0.45
0.27
0.66
0.61
0.59
0.56
0.91
0.51
0.38
0.23
0.62
0.45
0.27
0.79
0.65
n / a
n / a
9
( 229 )
0.83
0.77
0.70
0.62
0.69
0.51
0.30
0.68
0.62
0.60
0.57
1.00
0.61
0.45
0.27
0.69
0.51
0.30
0.84
0.69
0.63
n / a
10
( 254 )
0.87
0.80
0.72
0.63
0.77
0.57
0.33
0.70
0.63
0.61
0.58
0.71
0.53
0.32
0.77
0.57
0.33
0.89
0.73
0.6
n / a
11
( 279 )
0.91
0.83
0.74
0.65
0.85
0.62
0.36
0.72
0.65
0.62
0.59
0.82
0.61
0.37
0.85
0.62
0.36
0.93
0.76
0.694
n / a
12
( 305 )
0.94
0.86
0.77
0.66
0.92
0.68
0.40
0.74
0.66
0.63
0.59
0.93
0.70
0.42
0.92
0.68
0.40
0.97
0.80
0.73
n / a
14
( 356 )
1.00
0.92
0.81
0.69
1.00
0.79
0.46
0.77
0.69
0.65
0.61
1.00
0.88
0.53
1.00
0.79
0.46
1.00
0.86
0.78
0.66
16
( 406 )
0.97
0.86
0.71
0.90
0.53
0.81
0.71
0.68
0.63
1.00
0.65
0.90
0.53
0.92
0.84
0.71
18
( 457 )
1.00
0.90
0.74
1.00
0.60
0.85
0.74
0.70
0.64
0.77
1.00
0.60
0.98
0.89
0.75
20
( 508 )
0.94
0.77
0.66
0.89
0.77
0.72
0.66
0.90
0.66
1.00
0.94
0.79
22
( 559 )
0.99
0.79
0.73
0.93
0.80
0.74
0.67
1.00
0.73
0.98
0.83
24
( 610 )
1.00
0.82
0.79
0.97
0.82
0.76
0.69
0.79
1.00
0.86
26
( 660 )
0.85
0.86
1.00
0.85
0.79
0.70
0.86
0.90
28
( 711 )
0.87
0.93
0.87
0.81
0.72
0.93
0.93
30
( 762 )
0.90
0.99
0.90
0.83
0.73
0.99
0.97
36
( 914 )
0.98
1.00
0.98
0.89
0.78
1.00
1.00
> 48
( 1219 )
1.00
1.00
1.00
0.87
Spacing ( s ) / Edge distance ( c a ) / Concrete thickness ( h ), - in . ( mm ) ƒ HV
3.2.5
Table 12 — Load adjustment factors for 5 / 8-in . diameter threaded rods in cracked concrete 1 , 2 , 3
5 / 8-in . threaded rods cracked concrete
Spacing factor in tension
ƒ AN
Edge distance factor in tension
ƒ RN
Spacing factor in shear 4
ƒ AV
┴ Toward edge
ƒ RV
Edge distance in shear
⃦ To edge
ƒ RV
Concrete thickness factor in shear 5
Embedment
in .
3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2 3-1 / 8
5-5 / 8
7-1 / 2 12-1 / 2
h ef
( mm )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
( 79 )
( 143 )
( 191 )
( 318 )
1-3 / 4
( 44 )
n / a
n / a
n / a
n / a
0.49
0.46
0.43
0.40
n / a
n / a
n / a
n / a
0.14
0.09
0.06
0.04
0.28
0.17
0.13
0.08
n / a
n / a
n / a
n / a
3-1 / 8
( 79 )
0.62
0.59
0.57
0.54
0.61
0.56
0.50
0.44
0.58
0.56
0.55
0.53
0.33
0.20
0.15
0.09
0.61
0.40
0.30
0.18
n / a
n / a
n / a
n / a
4
( 102 )
0.65
0.62
0.59
0.55
0.70
0.62
0.55
0.46
0.602
0.57
0.56
0.54
0.48
0.29
0.22
0.13
0.70
0.58
0.44
0.26
n / a
n / a
n / a
n / a
4-5 / 8
( 117 )
0.67
0.64
0.60
0.56
0.76
0.67
0.58
0.48
0.62
0.59
0.57
0.55
0.60
0.36
0.27
0.16
0.76
0.67
0.55
0.33
0.69
n / a
n / a
n / a
5
( 127 )
0.68
0.65
0.61
0.57
0.80
0.70
0.60
0.49
0.63
0.59
0.58
0.55
0.67
0.41
0.31
0.18
0.80
0.70
0.60
0.37
0.71
n / a
n / a
n / a
6
( 152 )
0.72
0.68
0.63
0.58
0.91
0.78
0.66
0.53
0.65
0.61
0.59
0.57
0.88
0.54
0.40
0.24
0.91
0.78
0.66
0.48
0.78
n / a
n / a
n / a
7
( 178 )
0.76
0.71
0.66
0.59
1.00
0.87
0.72
0.56
0.68
0.63
0.61
0.58
1.00
0.68
0.51
0.30
1.00
0.87
0.72
0.56
0.85
n / a
n / a
n / a
7-1 / 8
( 181 )
0.76
0.71
0.66
0.60
0.88
0.73
0.56
0.68
0.63
0.61
0.58
0.69
0.52
0.31
0.88
0.73
0.56
0.85
0.72
n / a
n / a
8
( 203 )
0.80
0.74
0.68
0.61
0.96
0.78
0.60
0.70
0.65
0.62
0.59
0.83
0.62
0.37
0.96
0.78
0.59
0.90
0.77
n / a
n / a
9
( 229 )
0.83
0.77
0.70
0.62
1.00
0.85
0.63
0.73
0.67
0.64
0.60
0.99
0.74
0.44
1.00
0.85
0.63
0.96
0.81
0.74
n / a
10
( 254 )
0.87
0.80
0.72
0.63
0.91
0.66
0.76
0.68
0.65
0.61
1.00
0.87
0.52
0.91
0.66
1.00
0.86
0.78
n / a
11
( 279 )
0.91
0.83
0.74
0.65
0.98
0.70
0.78
0.70
0.67
0.62
1.00
0.60
0.98
0.70
0.90
0.82
n / a
12
( 305 )
0.94
0.86
0.77
0.66
1.00
0.73
0.81
0.72
0.68
0.63
0.68
1.00
0.73
0.94
0.85
n / a
14
( 356 )
1.00
0.92
0.81
0.69
0.81
0.86
0.76
0.71
0.65
0.86
0.81
1.00
0.92
0.78
16
( 406 )
0.97
0.86
0.71
0.89
0.91
0.79
0.74
0.67
1.00
0.89
0.98
0.83
18
( 457 )
1.00
0.90
0.74
0.97
0.96
0.83
0.77
0.69
0.97
1.00
0.88
20
( 508 )
0.94
0.77
1.00
1.00
0.87
0.80
0.72
1.00
0.93
22
( 559 )
0.99
0.79
0.90
0.83
0.74
0.97
24
( 610 )
1.00
0.82
0.94
0.86
0.76
1.00
26
( 660 )
0.85
0.98
0.89
0.78
28
( 711 )
0.87
1.00
0.92
0.80
30
( 762 )
0.90
0.95
0.82
36
( 914 )
0.98
1.00
0.89
> 48
( 1219 )
1.00
1.00
Spacing ( s ) / Edge distance ( c a
) / Concrete thickness ( h ), - in . ( mm )
1 Linear interpolation not permitted 2 Shaded area with reduced edge distance is permitted provided the installation torque is reduced to 0.30 T max for 5d ≤ s ≤ 16-in . and to 0.5 T max for s > 16-in . 3 When combining multiple load adjustment factors ( e . g . for a four-anchor pattern in a corner with thin concrete member ) the design can become very conservative . To optimize the design , use
PROFIS Engineering or perform anchor calculation using design equations from ACI 318 Chapter 17 . 4 Spacing factor reduction in shear applicable when c < 3 * h ef
. ƒ AV , is applicable when edge distance , c < 3 * h ef
. If c ≥ 3 * h ef , then ƒ AV
= ƒ AN .
5 Concrete thickness reduction factor in shear , ƒ HV , is applicable when edge distance , c < 3 * h ef
. If c ≥ 3 * h ef , then ƒ HV
= 1.0 . ƒ HV
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.2.5 HIT-ICE ADHESIVE ANCHORING SYSTEM Hilti , Inc . 1-800-879-8000 | en español 1-800-879-5000 | www . hilti . com | Hilti ( Canada ) Corporation | www . hilti . ca | 1-800-363-4458
203