Product Technical Guide Supplement for HDV Drop-in Anchors

4
May 2018
Anchor spacing and edge distance guidelines
Anchor Spacing Adjustment Factors
s = Actual Spacing
s
min
= 2.0 h
nom
s
er
= 3.5 h
nom
Edge Distance Adjustment Factors
c = Actual Edge Distance
c
min
= 2.0 h
nom
c
er
= 3.0 h
nom
Typical anchor installed through metal deck into lightweight concrete
Load Adjustment Factors for Anchor Spacing f
A
Load Adjustment Factors for Edge Distance f
R
Tension & Shear Loads Tension f
RN
Shear f
RV
Spacing s Anchor Diameter Edge Distance c Anchor Diameter Anchor Diameter
in. (mm) 1/4 3/8 1/2 in. (mm) 1/4 3/8 1/2 1/4 3/8 1/2
2 (51) .50 n/a n/a 2 (51) .80 n/a n/a .65 n/a n/a
2-1/2 (64) .67 n/a n/a 2-1/2 (64) .90 n/a n/a .83 n/a n/a
3 (76) .83 .50 n/a 3 (76) 1.0 .80 n/a 1.0 .65 n/a
3-1/2 (89) 1.0 .58 n/a 3-1/2 (89) .85 n/a .73 n/a
4 (102) .69 .50 4 (102) .91 .80 .85 .65
4-1/2 (114) .79 .58 4-1/2 (114) .98 .85 .96 .74
5 (127) .90 .67 5 (127) 1.0 .90 1.0 .83
5-1/2 (140) 1.0 .75 5-1/2 (140) .95 .91
6 (152) .83 6 (152) 1.0 1.0
7 (178) 1.0 7 (178)
8 (203) 8 (178)
Mechanical Anchoring Systems
Typical anchor installed through metal deck into lightweight concrete
Anchor Spacing Adjustment Factor
(f
A
)
Edge Distance Adjustment Factor
(f
RV,
f
RN
)
HDV Anchor
(Maximum 1” offset
from center of lower flute)
Mechanical Anchoring Systems
Typical anchor installed through metal deck into lightweight concrete
Anchor Spacing Adjustment Factor
(f
A
)
Edge Distance Adjustment Factor
(f
RV,
f
RN
)
HDV Anchor
(Maximum 1” offset
from center of lower flute)
Anchor Size h
nom
in. in. (mm)
1/4 1 (25)
3/8 1-9/16 (40)
1/2 2 (51)
h
nom
= standard ebedment depth
HDV embedment depth for load
adjustment factor calculations
Load adjustment factors for HDV ush anchors in concrete
Mechanical Anchoring Systems
Typical anchor installed through metal deck into lightweight concrete
Anchor Spacing Adjustment Factor
(f
A
)
Edge Distance Adjustment Factor
(f
RV,
f
RN
)
HDV Anchor
(Maximum 1” offset
from center of lower flute)