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Adhesive Anchoring Systems
HIT-ICE Adhesive Anchoring System 3.2.5
3.2.5
Hilti, Inc. (US) 1-800-879-8000 | www.us.hilti.com I en español 1-800-879-5000 I Hilti (Canada) Corp. 1-800-363-4458 I www.hilti.ca I Anchor Fastening Technical Guide 2016 211
Table 20 - Load adjustment factors for 5/8-in. and 3/4-in. diameter anchors
Diameter
5/8-in.
3/4-in.
Adjustment
factor
Spacing
tension/shear
ƒ
A
Edge distance
tension
ƒ
RN
Edge distance
shear
(
⊥
toward edge)
ƒ
RV1
Edge distance
shear
(II to or away
from edge)
ƒ
RV2
Spacing
tension/shear
ƒ
A
Edge distance
tension
ƒ
RN
Edge distance
shear
(
⊥
toward edge)
ƒ
RV1
Edge distance
shear
(II to or away
from edge)
ƒ
RV2
Embedment
depth, in. 2-1/2
5
7-1/2 2-1/2
5
7-1/2 2-1/2
5
7-1/2 2-1/2
5
7-1/2 3-3/8 6-5/8 10 3-3/8 6-5/8 10 3-3/8 6-5/8 10 3-3/8 6-5/8 10
Spacing (s)/Edge distance (c), in.
1-1/4 0.70
0.60
0.18
0.46
1-11/16 0.75
0.67
0.27
0.52
0.70
0.60
0.18
0.46
2
0.79
0.72
0.34
0.57
0.73
0.64
0.23
0.49
2-1/2 0.85 0.70
0.80 0.60
0.45 0.18
0.64 0.46
0.77
0.70
0.31
0.55
3
0.91 0.73
0.88 0.64
0.56 0.23
0.71 0.50
0.82
0.76
0.39
0.60
3-5/16 0.95 0.75
0.93 0.67
0.63 0.27
0.76 0.52
0.84 0.70
0.79 0.60
0.44 0.18
0.63 0.46
3-3/4 1.00 0.78 0.70 1.00 0.70 0.60 0.72 0.32 0.18 0.82 0.55 0.46 0.88 0.72
0.84 0.63
0.51 0.22
0.68 0.48
4
0.79 0.71
0.72 0.61 0.77 0.34 0.20 0.86 0.57 0.47 0.91 0.73
0.87 0.64
0.55 0.24
0.71 0.50
4-1/2
0.82 0.73
0.76 0.64 0.88 0.40 0.23 0.93 0.60 0.50 0.95 0.75
0.93 0.67
0.63 0.28
0.76 0.52
5
0.85 0.75
0.80 0.67 1.00 0.45 0.27 1.00 0.64 0.52 0.99 0.78 0.70 0.99 0.70 0.60 0.71 0.32 0.18 0.81 0.55 0.46
5-1/16
0.85 0.75
0.81 0.67
0.46 0.27
0.64 0.52 1.00 0.78 0.70 1.00 0.71 0.60 0.72 0.32 0.18 0.82 0.56 0.46
5-1/2
0.88 0.77
0.84 0.69
0.50 0.31
0.68 0.54
0.80 0.72
0.73 0.62 0.79 0.36 0.21 0.87 0.58 0.48
6
0.91 0.79
0.88 0.72
0.56 0.34
0.71 0.57
0.82 0.73
0.76 0.64 0.87 0.40 0.23 0.92 0.61 0.50
6-3/4
0.96 0.82
0.94 0.76
0.64 0.40
0.77 0.60
0.86 0.75
0.81 0.67 1.00 0.46 0.27 1.00 0.65 0.52
7-1/2
1.00 0.85
1.00 0.80
0.72 0.45
0.82 0.64
0.89 0.78
0.85 0.70
0.52 0.32
0.69 0.55
8
0.87
0.83
0.77 0.49
0.86 0.66
0.91 0.79
0.88 0.72
0.56 0.34
0.71 0.57
8-1/2
0.89
0.85
0.83 0.52
0.89 0.69
0.93 0.81
0.91 0.74
0.60 0.37
0.74 0.59
9
0.91
0.88
0.88 0.56
0.93 0.71
0.96 0.82
0.94 0.76
0.64 0.40
0.77 0.60
9-15/16
0.95
0.93
0.98 0.63
1.00 0.76
1.00 0.85
1.00 0.80
0.72 0.45
0.82 0.64
10
0.95
0.93
1.00 0.63
0.76
0.85
0.80
0.73 0.45
0.82 0.64
11-1/4
1.00
1.00
0.72
0.82
0.89
0.85
0.83 0.52
0.89 0.69
12
0.77
0.86
0.91
0.88
0.89 0.56
0.93 0.71
13-1/4
0.86
0.92
0.95
0.93
1.00 0.63
1.00 0.76
14
0.92
0.95
0.97
0.96
0.67
0.78
15
1.00
1.00
1.00
1.00
0.72
0.82
16
0.77
0.86
18
0.88
0.93
20
1.00
1.00
Table 19 - Load adjustment factors for 1/2-in. diameter anchors
Diameter
1/2-in.
Adjustment
factor
Spacing
tension/shear
ƒ
A
Edge distance
tension
ƒ
RN
Edge distance shear
(
⊥
toward edge)
ƒ
RV1
Edge distance shear
(II to or away
from edge)
ƒ
RV2
Embedment
depth, in.
2-1/8 4-1/4 6-3/8 2-1/8 4-1/4 6-3/8 2-1/8 4-1/4 6-3/8 2-1/8 4-1/4 6-3/8
Spacing (s)/
Edge distance (c), in.
1-1/16
0.70
0.60
0.18
0.46
1-1/2
0.76
0.68
0.29
0.53
2 0.83
0.78
0.42
0.62
2-1/8
0.85
0.70
0.80
0.60
0.45
0.18
0.64
0.46
2-3/4
0.94
0.74
0.92
0.66
0.61
0.26
0.75
0.51
3 0.97
0.76
0.96
0.68
0.67
0.29
0.79
0.53
3-3/16
1.00
0.78
0.70
1.00
0.70
0.60
0.72
0.32
0.18
0.82
0.55
0.46
4
0.83
0.74
0.78
0.65
0.93
0.42
0.25
0.96
0.62
0.51
4-1/4
0.85
0.75
0.80
0.67
1.00
0.45
0.27
1.00
0.64
0.52
5
0.90
0.79
0.87
0.71
0.55
0.33
0.70
0.56
6
0.97
0.83
0.96
0.78
0.67
0.42
0.79
0.62
6-3/8
1.00
0.85
1.00
0.80
0.72
0.45
0.82
0.64
7
0.88
0.84
0.80
0.50
0.87
0.68
7-1/2
0.90
0.87
0.86
0.55
0.92
0.70
8-1/2
0.95
0.93
1.00
0.63
1.00
0.76
9
0.97
0.96
0.67
0.79
9-9/16
1.00
1.00
0.72
0.82
10
0.76
0.84
11
0.84
0.90
12-3/4
1.00
1.00
Note: Tables apply for listed
embedment depths. Reduction
factors for other embedment
depths must be calculated
using equations below.
Spacing tension/shear
s
min
= 0.5 h
ef
s
cr
= 1.5 h
ef
ƒ
A
= 0.3(s/h
ef
) + 0.55
for s
cr
>s>s
min
Edge distance tension
c
min
= 0.5 h
ef
c
cr
= 1.5 h
ef
ƒ
RN
= 0.4(c/h
ef
) + 0.40
for c
cr
>c>c
min
Edge distance shear
⊥
toward edge
c
min
= 0.5 h
ef
c
cr
= 2.0 h
ef
ƒ
RV1
= 0.54(c/h
ef
) – 0.09
for c
cr
>c>c
min
Edge distance shear
II to or away from edge
c
min
= 0.5 h
ef
c
cr
= 2.0 h
ef
ƒ
RV2
= 0.36(c/h
ef
) + 0.28
for c
cr
>c>c
min