Product Technical Guides : CA-EN Anchor Fastening - Volume 2 Edition 21 | Page 69

Anchor Fastening Technical Guide , Edition 22
Table 50 — Load adjustment factors for 7 / 8-in . diameter threaded rods in uncracked concrete 1 , 2 , 3
7 / 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 and away from edge
ƒ RV
Concrete thickness factor in shear 5
Embedment
in .
3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2
h ef
( mm )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
1-3 / 4
( 44 )
n / a
n / a
n / a
n / a
0.39
0.24
0.18
0.10
n / a
n / a
n / a
n / a
0.09
0.03
0.02
0.01
0.18
0.05
0.04
0.02
n / a
n / a
n / a
n / a
2-1 / 4
( 57 )
n / a
n / a
n / a
n / a
0.43
0.25
0.19
0.11
n / a
n / a
n / a
n / a
0.13
0.04
0.03
0.01
0.26
0.08
0.05
0.02
n / a
n / a
n / a
n / a
4-3 / 8
( 111 )
0.58
0.58
0.57
0.54
0.54
0.31
0.23
0.13
0.58
0.54
0.53
0.52
0.35
0.11
0.07
0.03
0.54
0.22
0.14
0.07
n / a
n / a
n / a
n / a
5
( 127 )
0.60
0.60
0.58
0.55
0.56
0.33
0.24
0.13
0.59
0.54
0.53
0.52
0.43
0.13
0.09
0.04
0.56
0.27
0.17
0.08
n / a
n / a
n / a
n / a
5-1 / 2
( 140 )
0.61
0.61
0.59
0.55
0.59
0.34
0.25
0.14
0.60
0.55
0.54
0.52
0.50
0.15
0.10
0.05
0.59
0.31
0.20
0.09
0.65
n / a
n / a
n / a
6
( 152 )
0.62
0.62
0.60
0.56
0.61
0.36
0.26
0.15
0.61
0.55
0.54
0.52
0.57
0.17
0.11
0.05
0.61
0.35
0.23
0.11
0.68
n / a
n / a
n / a
7
( 178 )
0.63
0.63
0.61
0.57
0.66
0.39
0.28
0.16
0.63
0.56
0.55
0.53
0.71
0.22
0.14
0.07
0.66
0.39
0.28
0.13
0.73
n / a
n / a
n / a
8
( 203 )
0.65
0.65
0.63
0.58
0.72
0.42
0.30
0.17
0.65
0.57
0.55
0.53
0.87
0.27
0.17
0.08
0.72
0.42
0.30
0.16
0.78
n / a
n / a
n / a
9
( 229 )
0.67
0.67
0.64
0.59
0.77
0.45
0.33
0.18
0.67
0.58
0.56
0.54
1.00
0.32
0.21
0.10
0.77
0.45
0.33
0.18
0.83
n / a
n / a
n / a
9-7 / 8
( 251 )
0.69
0.69
0.66
0.59
0.82
0.48
0.35
0.19
0.69
0.59
0.56
0.54
0.37
0.24
0.11
0.82
0.48
0.35
0.19
0.87
0.59
n / a
n / a
10
( 254 )
0.69
0.69
0.66
0.60
0.82
0.49
0.35
0.20
0.69
0.59
0.57
0.54
0.38
0.24
0.11
0.82
0.49
0.35
0.20
0.87
0.59
n / a
n / a
11
( 279 )
0.71
0.71
0.67
0.60
0.88
0.52
0.37
0.21
0.71
0.60
0.57
0.54
0.43
0.28
0.13
0.88
0.52
0.37
0.21
0.91
0.62
n / a
n / a
12
( 305 )
0.73
0.73
0.69
0.61
0.94
0.56
0.40
0.22
0.73
0.60
0.58
0.55
0.49
0.32
0.15
0.94
0.56
0.40
0.22
0.95
0.65
n / a
n / a
12-1 / 2 ( 318 )
0.74
0.74
0.70
0.62
0.97
0.59
0.41
0.23
0.74
0.61
0.58
0.55
0.52
0.34
0.16
0.97
0.59
0.41
0.23
0.97
0.66
0.57
n / a
14
( 356 )
0.77
0.77
0.72
0.63
1.00
0.66
0.46
0.26
0.77
0.62
0.59
0.55
0.62
0.40
0.19
1.00
0.66
0.46
0.26
1.00
0.70
0.60
n / a
16
( 406 )
0.81
0.81
0.75
0.65
0.75
0.52
0.29
0.80
0.64
0.60
0.56
0.76
0.49
0.23
1.00
0.75
0.52
0.29
0.75
0.65
n / a
18
( 457 )
0.85
0.85
0.79
0.67
0.84
0.59
0.33
0.84
0.66
0.62
0.57
0.91
0.59
0.27
1.00
0.84
0.59
0.33
0.79
0.68
n / a
19-1 / 2 ( 495 )
0.88
0.88
0.81
0.69
0.92
0.64
0.36
0.87
0.67
0.63
0.58
1.00
0.66
0.31
1.00
0.92
0.64
0.36
0.82
0.71
0.55
20
( 508 )
0.89
0.89
0.82
0.69
0.94
0.65
0.37
0.88
0.67
0.63
0.58
0.69
0.32
1.00
0.94
0.65
0.37
0.83
0.72
0.56
22
( 559 )
0.92
0.92
0.85
0.71
1.00
0.72
0.40
0.92
0.69
0.64
0.59
0.80
0.37
1.00
0.72
0.40
0.87
0.76
0.59
24
( 610 )
0.96
0.96
0.88
0.73
0.78
0.44
0.96
0.71
0.66
0.59
0.91
0.42
0.78
0.44
0.91
0.79
0.61
26
( 660 )
1.00
1.00
0.91
0.75
0.85
0.48
0.99
0.73
0.67
0.60
1.00
0.48
0.85
0.48
0.95
0.82
0.64
28
( 711 )
0.94
0.77
0.91
0.51
1.00
0.74
0.68
0.61
0.53
0.91
0.51
0.99
0.85
0.66
30
( 762 )
0.98
0.79
0.98
0.55
0.76
0.70
0.62
0.59
0.98
0.55
1.00
0.88
0.68
36
( 914 )
1.00
0.84
1.00
0.66
0.81
0.73
0.64
0.77
1.00
0.66
0.97
0.75
> 48
( 1219 )
0.96
0.88
0.92
0.81
0.69
1.00
0.88
1.00
0.87
Spacing ( s ) / Edge distance ( c a ) / Concrete thickness ( h ), - in . ( mm ) ƒ HV
3.2.2
Table 51 — Load adjustment factors for 7 / 8-in . diameter threaded rods in cracked concrete 1 , 2 , 3
7 / 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 and away from edge
ƒ RV
Concrete thickness factor in shear 5
Embedment
in .
3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2 3-1 / 2 7-7 / 8 10-1 / 2 17-1 / 2
h ef
( mm )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
( 89 )
( 200 )
( 267 )
( 445 )
1-3 / 4
( 44 )
n / a
n / a
n / a
n / a
0.42
0.42
0.41
0.38
n / a
n / a
n / a
n / a
0.09
0.03
0.02
0.01
0.18
0.06
0.04
0.02
n / a
n / a
n / a
n / a
2-1 / 4
( 57 )
n / a
n / a
n / a
n / a
0.44
0.44
0.42
0.39
n / a
n / a
n / a
n / a
0.13
0.04
0.03
0.01
0.26
0.08
0.05
0.03
n / a
n / a
n / a
n / a
4-3 / 8
( 111 )
0.58
0.58
0.57
0.54
0.54
0.54
0.50
0.44
0.58
0.54
0.53
0.52
0.36
0.11
0.07
0.03
0.54
0.22
0.14
0.07
n / a
n / a
n / a
n / a
5
( 127 )
0.60
0.60
0.58
0.55
0.56
0.56
0.52
0.45
0.60
0.54
0.53
0.52
0.43
0.13
0.09
0.04
0.56
0.27
0.17
0.08
n / a
n / a
n / a
n / a
5-1 / 2
( 140 )
0.61
0.61
0.59
0.55
0.59
0.59
0.54
0.46
0.61
0.55
0.54
0.52
0.50
0.15
0.10
0.05
0.59
0.31
0.20
0.10
0.65
n / a
n / a
n / a
6
( 152 )
0.62
0.62
0.60
0.56
0.61
0.61
0.56
0.47
0.61
0.55
0.54
0.52
0.57
0.18
0.11
0.06
0.61
0.35
0.23
0.11
0.68
n / a
n / a
n / a
7
( 178 )
0.63
0.63
0.61
0.57
0.66
0.66
0.60
0.49
0.63
0.56
0.55
0.53
0.72
0.22
0.14
0.07
0.66
0.44
0.29
0.14
0.73
n / a
n / a
n / a
8
( 203 )
0.65
0.65
0.63
0.58
0.72
0.72
0.64
0.52
0.65
0.57
0.55
0.53
0.88
0.27
0.18
0.09
0.72
0.54
0.35
0.17
0.78
n / a
n / a
n / a
9
( 229 )
0.67
0.67
0.64
0.59
0.77
0.77
0.68
0.54
0.67
0.58
0.56
0.54
1.00
0.32
0.21
0.10
0.77
0.65
0.42
0.20
0.83
n / a
n / a
n / a
9-7 / 8
( 251 )
0.69
0.69
0.66
0.59
0.82
0.82
0.72
0.56
0.69
0.59
0.56
0.54
0.37
0.24
0.12
0.82
0.74
0.48
0.23
0.87
0.59
n / a
n / a
10
( 254 )
0.69
0.69
0.66
0.60
0.82
0.82
0.73
0.56
0.69
0.59
0.57
0.54
0.38
0.25
0.12
0.82
0.76
0.49
0.24
0.87
0.59
n / a
n / a
11
( 279 )
0.71
0.71
0.67
0.60
0.88
0.88
0.77
0.59
0.71
0.60
0.57
0.54
0.44
0.28
0.14
0.88
0.87
0.57
0.28
0.92
0.62
n / a
n / a
12
( 305 )
0.73
0.73
0.69
0.61
0.94
0.94
0.82
0.61
0.73
0.60
0.58
0.55
0.50
0.32
0.16
0.94
0.94
0.65
0.31
0.96
0.65
n / a
n / a
12-1 / 2 ( 318 )
0.74
0.74
0.70
0.62
0.97
0.97
0.84
0.62
0.74
0.61
0.58
0.55
0.53
0.34
0.17
0.97
0.97
0.69
0.33
0.98
0.66
0.57
n / a
14
( 356 )
0.77
0.77
0.72
0.63
1.00
1.00
0.91
0.66
0.77
0.62
0.59
0.56
0.63
0.41
0.20
1.00
1.00
0.82
0.40
1.00
0.70
0.61
n / a
16
( 406 )
0.81
0.81
0.75
0.65
1.00
0.71
0.81
0.64
0.60
0.56
0.77
0.50
0.24
1.00
0.48
0.75
0.65
n / a
18
( 457 )
0.85
0.85
0.79
0.67
0.76
0.84
0.66
0.62
0.57
0.91
0.59
0.29
0.58
0.79
0.69
n / a
19-1 / 2 ( 495 )
0.88
0.88
0.81
0.69
0.80
0.87
0.67
0.63
0.58
1.00
0.67
0.32
0.65
0.82
0.71
0.56
20
( 508 )
0.89
0.89
0.82
0.69
0.82
0.88
0.67
0.63
0.58
0.70
0.34
0.67
0.84
0.72
0.57
22
( 559 )
0.92
0.92
0.85
0.71
0.87
0.92
0.69
0.64
0.59
0.80
0.39
0.78
0.88
0.76
0.60
24
( 610 )
0.96
0.96
0.88
0.73
0.93
0.96
0.71
0.66
0.60
0.91
0.44
0.89
0.92
0.79
0.62
26
( 660 )
1.00
1.00
0.91
0.75
0.99
1.00
0.73
0.67
0.61
1.00
0.50
0.99
0.95
0.82
0.65
28
( 711 )
0.94
0.77
1.00
0.74
0.68
0.61
0.56
1.00
0.99
0.86
0.67
30
( 762 )
0.98
0.79
0.76
0.70
0.62
0.62
1.00
0.89
0.70
36
( 914 )
1.00
0.84
0.81
0.74
0.65
0.81
0.97
0.76
> 48
( 1219 )
0.96
0.92
0.81
0.69
1.00
1.00
0.88
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 | 3.2.2 HILTI HIT-HY 200 A / R V3 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
65