Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 310

Table 12 — Load adjustment factors for Carbon Steel 5 / 8-in . diameter KB-TZ2 in uncracked concrete 1 , 2
5 / 8-in . KB-TZ2 uncracked concrete
Spacing factor in tension
ƒ AN
Edge distance factor in tension
ƒ RN
Spacing factor in shear 3
ƒ AV
Edge distance in shear
┴ Toward edge
ƒ RV
‖ To edge
ƒ RV
Concrete thickness factor
4 in shear
Effective Embedment
in .
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
h ef
( mm )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
Nominal Embedment
in .
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
h nom
( mm )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
ƒ HV
Spacing ( s ) / Edge Distance ( c a
) / Concrete Thickness ( h ) - in . ( mm )
2-1 / 4
( 57 )
n / a
0.62
n / a
n / a
n / a
0.38
n / a
0.53
n / a
n / a
n / a
0.10
n / a
n / a
0.20
n / a
n / a
n / a
2-3 / 4
( 70 )
n / a
0.64
0.61
n / a
n / a
0.42
n / a
0.54
0.54
n / a
n / a
0.13
n / a
n / a
0.27
n / a
n / a
n / a
3
( 76 )
n / a
0.65
0.63
n / a
0.30
0.44
n / a
0.54
0.55
n / a
0.13
0.15
n / a
0.27
0.30
n / a
n / a
n / a
3-1 / 2
( 89 )
n / a
0.68
0.65
n / a
0.33
0.48
n / a
0.55
0.56
n / a
0.17
0.19
n / a
0.33
0.38
n / a
n / a
n / a
4
( 102 )
0.74
0.71
0.67
0.40
0.37
0.51
0.57
0.56
0.56
0.25
0.21
0.23
0.40
0.37
0.47
n / a
n / a
n / a
4-1 / 2
( 114 )
0.77
0.73
0.69
0.45
0.40
0.56
0.58
0.57
0.57
0.30
0.24
0.28
0.45
0.40
0.56
n / a
n / a
n / a
5
( 127 )
0.80
0.76
0.71
0.50
0.43
0.60
0.58
0.57
0.58
0.35
0.29
0.33
0.50
0.43
0.60
0.58
n / a
n / a
5-1 / 2
( 140 )
0.83
0.78
0.73
0.55
0.48
0.64
0.59
0.58
0.59
0.41
0.33
0.38
0.55
0.48
0.64
0.61
0.56
n / a
6
( 152 )
0.86
0.81
0.75
0.60
0.52
0.69
0.60
0.59
0.59
0.46
0.38
0.43
0.60
0.52
0.69
0.63
0.59
0.62
6-1 / 2
( 165 )
0.89
0.83
0.77
0.65
0.57
0.74
0.61
0.59
0.60
0.52
0.42
0.48
0.65
0.57
0.74
0.66
0.61
0.64
7
( 178 )
0.92
0.86
0.79
0.70
0.61
0.80
0.62
0.60
0.61
0.59
0.47
0.54
0.70
0.61
0.80
0.68
0.64
0.67
7-1 / 4
( 184 )
0.94
0.87
0.80
0.73
0.63
0.83
0.62
0.61
0.61
0.62
0.50
0.57
0.73
0.63
0.83
0.70
0.65
0.68
12
( 305 )
1.00
1.00
1.00
1.00
1.00
1.00
0.70
0.67
0.69
1.00
1.00
1.00
1.00
1.00
1.00
0.89
0.83
0.87
24
( 610 )
0.90
0.85
0.88
1.00
1.00
1.00
> 36
( 914 )
1.00
1.00
1.00
Table 13 — Load adjustment factors for Carbon Steel 5 / 8-in . diameter KB-TZ2 in cracked concrete 1 , 2
5 / 8-in . KB-TZ2 cracked concrete
Spacing factor in tension
ƒ AN
Edge distance factor in tension
ƒ RN
Spacing factor in shear 3
ƒ AV
Edge distance in shear
┴ Toward edge
ƒ RV
‖ To edge
ƒ RV
Concrete thickness factor
4 in shear
Effective Embedment
in .
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
2-3 / 4
3-1 / 4
4
h ef
( mm )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
( 70 )
( 83 )
( 102 )
Nominal Embedment
in .
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
3-1 / 4
3-3 / 4
4-1 / 2
h nom
( mm )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
( 83 )
( 95 )
( 114 )
ƒ HV
Spacing ( s ) / Edge Distance ( c a
) / Concrete Thickness ( h ) - in . ( mm )
2-1 / 4
( 57 )
n / a
0.62
n / a
n / a
n / a
0.56
n / a
0.54
n / a
n / a
n / a
0.10
n / a
n / a
0.20
n / a
n / a
n / a
2-3 / 4
( 70 )
n / a
0.64
0.61
n / a
n / a
0.61
n / a
0.55
0.54
n / a
n / a
0.13
n / a
n / a
0.27
n / a
n / a
n / a
3
( 76 )
n / a
0.65
0.63
n / a
0.71
0.64
n / a
0.55
0.55
n / a
0.16
0.15
n / a
0.32
0.31
n / a
n / a
n / a
3-1 / 2
( 89 )
n / a
0.68
0.65
n / a
0.79
0.69
n / a
0.56
0.56
n / a
0.20
0.19
n / a
0.41
0.39
n / a
n / a
n / a
4
( 102 )
0.74
0.71
0.67
0.98
0.86
0.75
0.58
0.57
0.56
0.31
0.25
0.24
0.62
0.50
0.47
n / a
n / a
n / a
4-1 / 2
( 114 )
0.77
0.73
0.69
1.00
0.94
0.81
0.59
0.57
0.57
0.37
0.30
0.28
0.74
0.60
0.56
n / a
n / a
n / a
5
( 127 )
0.80
0.76
0.71
1.00
1.00
0.87
0.60
0.58
0.58
0.43
0.35
0.33
0.87
0.70
0.66
0.62
n / a
n / a
5-1 / 2
( 140 )
0.83
0.78
0.73
1.00
1.00
0.93
0.61
0.59
0.59
0.50
0.40
0.38
1.00
0.81
0.76
0.65
0.60
n / a
6
( 152 )
0.86
0.81
0.75
1.00
1.00
0.61
0.60
0.60
0.57
0.46
0.43
0.92
0.87
0.68
0.63
0.62
6-1 / 2
( 165 )
0.89
0.83
0.77
1.00
0.62
0.61
0.60
0.64
0.52
0.49
1.00
0.98
0.71
0.66
0.64
7
( 178 )
0.92
0.86
0.79
1.00
0.63
0.62
0.61
0.72
0.58
0.55
1.00
1.00
0.73
0.68
0.67
7-1 / 4
( 184 )
0.94
0.87
0.80
0.64
0.62
0.62
0.76
0.61
0.58
0.74
0.69
0.68
12
( 305 )
1.00
1.00
1.00
0.73
0.70
0.69
1.00
1.00
1.00
0.96
0.89
0.87
24
( 610 )
0.96
0.90
0.88
1.00
1.00
1.00
> 36
( 914 )
1.00
1.00
1.00
1 Linear interpolation not permitted 2 When combining multiple load adjustment factors ( e . g . for a 4 anchor pattern in a corner with thin concrete member ) the design can become very conservative .
To optimize the design , use Hilti PROFIS Engineering Design software or perform anchor calculation using design equations from ACI 318 Ch . 17 or CSA A23.3 Annex D . 3 Spacing factor reduction in shear , f AV
, is applicable when edge distance c < 3h ef . If c ≥ 3h ef then f AV = f AN
.
4 Concrete thickness reduction factor in shear , f HV , is applicable when edge distance c < 3h ef
. If c ≥ 3h ef then f HV
= 1.0 .
If a reduction factor value is in a shaded cell , this indicates that this specific edge distance may not be permitted with a certain spacing ( or vice versa ). Check with Figure 2 and Table 5 to calculate permissible edge distance , spacing and concrete thickness combinations .
306 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.5 KWIK BOLT TZ2 EXPANSION ANCHOR 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