Product Technical Guide Excerpt for HSL-3 Heavy Duty Expansion Anchor

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Anchor Fastening Technical Guide Edition 19 | 3.0 ANCHORING SYSTEMS | 3.3.2 HSL-3 HEAVY-DUTY EXPANSION ANCHORS
Hilti, Inc. (U.S.) 1-800-879-8000 | en español 1-800-879-5000 | www.hilti.com | Hilti (Canada) Corporation | www.hilti.com | 1-800-363-4458
Table 8 - Load adjustment factors for M16, M20, and M24 Hilti HSL-3 anchors in uncracked concrete
1,2
M16, M20 and M24
HSL-3
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
Conc. thickness factor
in shear
4
ƒ
HV
⊥ toward edge
ƒ
RV
II to and away
from edge
ƒ
RV
Nominal dia. M16 M20 M24 M16 M20 M24 M16 M20 M24 M16 M20 M24 M16 M20 M24 M16 M20 M24
Effective
embedment h
ef
mm 100 125 150 100 125 150 100 125 150 100 125 150 100 125 150 100 125 150
(in.) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91)
Spacing (s) / edge distance (c
a
) / concrete
thickness (h) - in. (mm)
4 (102) 0.67 n/a n/a n/a n/a n/a 0.56 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a
4-1/2 (114) 0.69 n/a n/a n/a n/a n/a 0.57 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a
4-3/4 (121) 0.70 n/a n/a 0.51 n/a n/a 0.58 n/a n/a 0.30 n/a n/a 0.51 n/a n/a n/a n/a n/a
5 (127) 0.71 0.67 n/a 0.53 0.45 n/a 0.58 0.57 n/a 0.33 0.25 n/a 0.53 0.45 n/a n/a n/a n/a
5-1/2 (140) 0.73 0.69 n/a 0.57 0.48 n/a 0.59 0.57 n/a 0.38 0.29 n/a 0.57 0.48 n/a n/a n/a n/a
5-7/8 (149) 0.75 0.70 0.67 0.60 0.50 0.45 0.59 0.58 0.57 0.42 0.32 0.26 0.60 0.50 0.45 n/a n/a n/a
6 (152) 0.75 0.70 0.67 0.61 0.51 0.45 0.59 0.58 0.57 0.43 0.33 0.27 0.61 0.51 0.45 n/a n/a n/a
6-1/4 (159) 0.76 0.71 0.68 0.63 0.53 0.47 0.60 0.58 0.57 0.46 0.35 0.29 0.63 0.53 0.47 0.63 n/a n/a
7 (178) 0.80 0.74 0.70 0.71 0.57 0.50 0.61 0.59 0.58 0.54 0.42 0.34 0.71 0.57 0.50 0.67 n/a n/a
7-1/2 (191) 0.82 0.75 0.71 0.76 0.61 0.53 0.62 0.60 0.59 0.60 0.46 0.38 0.76 0.61 0.53 0.69 0.63 n/a
8 (203) 0.84 0.77 0.73 0.81 0.65 0.55 0.63 0.61 0.59 0.66 0.51 0.41 0.81 0.65 0.55 0.71 0.65 n/a
8-7/8 (225) 0.88 0.80 0.75 0.90 0.72 0.60 0.64 0.62 0.60 0.77 0.60 0.48 0.90 0.72 0.60 0.75 0.69 0.64
9 (229) 0.88 0.80 0.75 0.91 0.73 0.61 0.64 0.62 0.60 0.79 0.61 0.49 0.91 0.73 0.61 0.75 0.69 0.65
10 (254) 0.92 0.84 0.78 1.00 0.81 0.68 0.66 0.63 0.62 0.92 0.71 0.58 1.00 0.81 0.68 0.79 0.73 0.68
11 (279) 0.97 0.87 0.81 1.00 0.89 0.75 0.67 0.65 0.63 1.00
0.82 0.67 1.00 0.89 0.75 0.83 0.77 0.71
12 (305) 1.00 0.91 0.84 0.97 0.81 0.69 0.66 0.64 0.94 0.76 0.97 0.81 0.87 0.80 0.75
14 (356) 1.00 0.97 0.90 1.00 0.95 0.72 0.69 0.66 1.00 0.96 1.00 0.96 0.94 0.86 0.80
16 (406) 1.00 1.00 0.95 1.00 0.75 0.71 0.69 1.00 1.00 1.00 0.92 0.86
18 (457) 1.00 0.78 0.74 0.71 0.98 0.91
20 (508) 0.82 0.77 0.73 1.00 0.96
24 (610) 0.88 0.82 0.78 1.00
30 (762) 0.97 0.90 0.85
36 (914) 1.00 0.98 0.92
> 48 (1219) 1.00 1.00
Table 9 - Load adjustment factors for M16, M20, and M24 Hilti HSL-3 anchors in cracked concrete
1,4
M16, M20 and M24
HSL-3
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
Conc. thickness factor
in shear
4
ƒ
HV
⊥ toward edge
ƒ
RV
II to and away
from edge
ƒ
RV
Nominal dia. M16 M20 M24 M16 M20 M24 M16 M20 M24 M16 M20 M24 M16 M20 M24 M16 M20 M24
Effective
embedment h
ef
mm 100 125 150 100 125 150 100 125 150 100 125 150 100 125 150 100 125 150
(in.) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91) (3.94) (4.92) (5.91)
Spacing (s) / edge distance (c
a
) / concrete
thickness (h) - in. (mm)
4 (102) 0.67 n/a n/a n/a n/a n/a 0.55 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a
4-1/2 (114) 0.69 n/a n/a n/a n/a n/a 0.56 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a
4-3/4 (121) 0.70 n/a n/a 0.85 n/a n/a 0.56 n/a n/a 0.22 n/a n/a 0.43 n/a n/a n/a n/a n/a
5 (127) 0.71 0.67 n/a 0.88 0.76 n/a 0.56 0.55 n/a 0.23 0.18 n/a 0.47 0.36 n/a n/a n/a n/a
5-1/2 (140) 0.73 0.69 n/a 0.95 0.81 n/a 0.57 0.56 n/a 0.27 0.21 n/a 0.54 0.42 n/a n/a n/a n/a
5-7/8 (149) 0.75 0.70 0.67 1.00 0.84 0.75 0.57 0.56 0.55 0.30 0.23 0.19 0.59 0.46 0.37 n/a n/a n/a
6 (152) 0.75 0.70 0.67 1.00 0.86 0.76 0.58 0.56 0.56 0.31 0.24 0.19 0.61 0.47 0.38 n/a n/a n/a
6-1/4 (159) 0.76 0.71 0.68 1.00 0.88 0.78 0.58 0.57 0.56 0.33 0.25 0.20 0.65 0.50 0.41 0.56 n/a n/a
7 (178) 0.80 0.74 0.70 1.00 0.96 0.84 0.59 0.57 0.56 0.39 0.30 0.24 0.77 0.60 0.48 0.59 n/a n/a
7-1/2 (191) 0.82 0.75 0.71 1.00 1.00 0.88 0.59 0.58 0.57 0.43 0.33 0.27 0.86 0.66 0.54 0.62 0.56 n/a
8 (203) 0.84 0.77 0.73 1.00 1.00 0.92 0.60 0.59 0.57 0.47 0.36 0.30 0.94 0.73 0.59 0.64 0.58 n/a
8-7/8 (225) 0.88 0.80 0.75 1.00 1.00 1.00 0.61 0.59 0.58 0.55 0.43 0.35 1.00 0.85 0.69 0.67 0.61 0.57
9 (229) 0.88 0.80 0.75 1.00 1.00 1.00 0.61 0.60 0.58 0.56 0.43 0.35 1.00 0.87 0.71 0.67 0.62 0.58
10 (254) 0.92 0.84 0.78 1.00 1.00 1.00 0.63 0.61 0.59 0.66 0.51 0.41 1.00 1.00 0.83 0.71 0.65 0.61
11 (279) 0.97 0.87 0.81 1.00 1.00 1.00 0.64 0.62 0.60 0.76
0.59 0.48 1.00 1.00 0.95 0.75 0.68 0.64
12 (305) 1.00 0.91 0.84 1.00 1.00 0.65 0.63 0.61 0.87 0.67 0.54 1.00 1.00 0.78 0.71 0.67
14 (356) 1.00 0.97 0.90 1.00 0.68 0.65 0.63 1.00 0.84 0.68 1.00 0.84 0.77 0.72
16 (406) 1.00 1.00 0.95 0.70 0.67 0.65 1.00 0.84 0.90 0.82 0.77
18 (457) 1.00 0.73 0.69 0.67 1.00 0.95 0.87 0.82
20 (508) 0.75 0.71 0.68 1.00 1.00 0.92 0.86
24 (610) 0.80 0.76 0.72 1.00 0.94
30 (762) 0.88 0.82 0.78 1.00
36 (914) 0.95 0.88 0.83
> 48 (1219) 1.00 1.00 0.94
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 Anchor Design software or perform anchor calculation using design equations from ACI 318-14 Chapter 17.
3 Spacing factor reduction in shear, ƒ
AV
, assumes an inuence of a nearby edge. If no edge exists, then ƒ
AV
= ƒ
AN
.
4 Concrete thickness reduction factor in shear, ƒ
HV
, assumes an inuence of a nearby edge. If no edge exists, then ƒ
HV
= 1.0.
If a reduction factor value is in a shaded cell, it may not be permitted if both edge and spacing are less than “critical” distances.
Check table 5 and gure 2 of this section to calculate permissable edge distance, spacing and concrete thickness combinations.
For the HSL-3-SH M8, M10 and M12 diameters, the minimum slab thickness must be increased by 5 mm (3/16-in.).