Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 414

Table 9 — Load adjustment factors for 5 / 8-in . diameter Hilti KWIK Bolt 3 stainless steel anchor in uncracked concrete 1 , 2
5 / 8-in . KB3 stainless steel 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
II to and away from edge
ƒ RV
Concrete thickness factor in shear 4
ƒ HV
Embedment
in .
3-1 / 2
4-3 / 8
3-1 / 2
4-3 / 8
3-1 / 2
4-3 / 8
3-1 / 2
4-3 / 8
3-1 / 2
4-3 / 8
3-1 / 2
4-3 / 8
h nom
( mm )
( 89 )
( 111 )
( 89 )
( 111 )
( 89 )
( 111 )
( 89 )
( 111 )
( 89 )
( 111 )
( 89 )
( 111 )
Spacing ( s ) / edge distance ( c a
) / concrete thickness ( h ) - in . ( mm )
2-1 / 8
( 54 )
n / a
0.59
n / a
n / a
n / a
0.53
n / a
n / a
n / a
n / a
n / a
n / a
2-1 / 2
( 64 )
n / a
0.60
n / a
0.37
n / a
0.54
n / a
0.12
n / a
0.23
n / a
n / a
3
( 76 )
n / a
0.63
n / a
0.40
n / a
0.55
n / a
0.15
n / a
0.30
n / a
n / a
3-1 / 8
( 79 )
0.67
0.63
n / a
0.41
0.56
0.55
n / a
0.16
n / a
0.32
n / a
n / a
3-1 / 4
( 83 )
0.67
0.64
0.49
0.42
0.56
0.55
0.24
0.17
0.47
0.34
n / a
n / a
3-1 / 2
( 89 )
0.69
0.65
0.51
0.44
0.57
0.56
0.26
0.19
0.51
0.38
n / a
n / a
4
( 102 )
0.71
0.67
0.56
0.47
0.58
0.56
0.32
0.23
0.56
0.47
n / a
n / a
5
( 127 )
0.77
0.71
0.68
0.55
0.60
0.58
0.45
0.33
0.68
0.55
0.63
n / a
6
( 152 )
0.82
0.75
0.81
0.63
0.62
0.59
0.59
0.43
0.81
0.63
0.69
0.62
7
( 178 )
0.87
0.79
0.95
0.74
0.64
0.61
0.75
0.54
0.95
0.74
0.74
0.67
8
( 203 )
0.93
0.83
1.00
0.84
0.66
0.63
0.91
0.66
1.00
0.84
0.79
0.71
9
( 229 )
0.98
0.88
0.95
0.68
0.64
1.00
0.79
0.95
0.84
0.75
10
( 254 )
1.00
0.92
1.00
0.70
0.66
0.92
1.00
0.89
0.80
11
( 279 )
0.96
0.72
0.67
1.00
0.93
0.83
12
( 305 )
1.00
0.74
0.69
0.97
0.87
14
( 356 )
0.77
0.72
1.00
0.94
16
( 406 )
0.81
0.75
1.00
18
( 457 )
0.85
0.78
20
( 508 )
0.89
0.82
24
( 610 )
0.97
0.88
> 30
( 762 )
1.00
0.97
Table 10 — Load adjustment factors for 3 / 4-in . diameter Hilti KWIK Bolt 3 stainless steel anchor in uncracked concrete 1 , 2
3 / 4-in . KB3 stainless steel 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
II to and away from edge
ƒ RV
Concrete thickness factor in shear 4
ƒ HV
Embedment
in .
4-1 / 4
5-1 / 2
4-1 / 4
5-1 / 2
4-1 / 4
5-1 / 2
4-1 / 4
5-1 / 2
4-1 / 4
5-1 / 2
4-1 / 4
5-1 / 2
h nom
( mm )
( 108 )
( 140 )
( 108 )
( 140 )
( 108 )
( 140 )
( 108 )
( 140 )
( 108 )
( 140 )
( 108 )
( 140 )
Spacing ( s ) / edge distance ( c a
) / concrete thickness ( h ) - in . ( mm )
2-7 / 8
( 73 )
n / a
n / a
n / a
0.43
n / a
n / a
n / a
0.11
n / a
0.23
n / a
n / a
3
( 76 )
n / a
n / a
n / a
0.44
n / a
n / a
n / a
0.12
n / a
0.24
n / a
n / a
3-1 / 4
( 83 )
n / a
n / a
0.37
0.46
n / a
n / a
0.20
0.14
0.37
0.27
n / a
n / a
3-1 / 2
( 89 )
n / a
0.62
0.39
0.47
n / a
0.55
0.22
0.15
0.39
0.30
n / a
n / a
4
( 102 )
0.68
0.63
0.42
0.51
0.57
0.55
0.27
0.18
0.42
0.37
n / a
n / a
4-1 / 2
( 114 )
0.70
0.65
0.45
0.54
0.58
0.56
0.32
0.22
0.45
0.44
n / a
n / a
5
( 127 )
0.72
0.67
0.49
0.58
0.59
0.57
0.38
0.26
0.49
0.52
n / a
n / a
6
( 152 )
0.77
0.70
0.57
0.65
0.60
0.58
0.49
0.34
0.57
0.65
0.65
n / a
7
( 178 )
0.81
0.73
0.67
0.73
0.62
0.59
0.62
0.43
0.67
0.73
0.70
n / a
8
( 203 )
0.86
0.77
0.76
0.82
0.64
0.61
0.76
0.52
0.76
0.82
0.75
0.66
9
( 229 )
0.90
0.80
0.86
0.92
0.66
0.62
0.91
0.62
0.91
0.92
0.79
0.70
10
( 254 )
0.94
0.83
0.95
1.00
0.67
0.64
1.00
0.73
1.00
1.00
0.83
0.74
11
( 279 )
0.99
0.87
1.00
0.69
0.65
0.84
0.87
0.77
12
( 305 )
1.00
0.90
0.71
0.66
0.96
0.91
0.81
14
( 356 )
0.97
0.74
0.69
1.00
0.99
0.87
16
( 406 )
1.00
0.78
0.72
1.00
0.93
18
( 457 )
0.81
0.74
0.99
20
( 508 )
0.85
0.77
1.00
24
( 610 )
0.92
0.82
30
( 762 )
1.00
0.91
> 36
( 914 )
0.99
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 PROFIS Engineering or perform anchor calculation using design equations from ACI 318 Chapter 17 .
3 Spacing factor reduction in shear , ƒ AV , assumes an influence of a nearby edge . If no edge exists , then ƒ AV
= ƒ AN .
4 Concrete thickness reduction factor in shear , ƒ HV , assumes an influence of a nearby edge . If no edge exists , then ƒ 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 table 13 and figure 3 of this section to calculate permissable edge distance , spacing and concrete thickness combinations . Use of Hilti KWIK Bolt 3 anchors with edge distance and spacing dimensions smaller than what is noted in this table is permitted .
410 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.11 KWIK Bolt 3 ( KB 3 ) CARBON AND STAINLESS STEEL SCREW 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