Table 4 — Steel design strength for Hilti KH-EZ SS316 and KH-EZ C SS316 anchors 1 , 2
Anchor diameter in . ( mm )
1 / 4 ( 6.4 )
3 / 8 ( 9.5 )
1 / 2 ( 12.7 )
Nominal embedment depth in . ( mm )
Tensile 3
фN sa lb ( kN )
Shear 4
фV sa lb ( kN )
1-5 / 8 2-1 / 2 4,535 1,190 780
Seismic shear 5
фV sa , eq lb ( kN )
( 41 ( 64 ) ( 20.2 ) ( 5.3 ) ( 3.5 ) 2 2-1 / 2 3-1 / 4 9,850 2,835 2,835 ( 51 ) ( 64 ) ( 83 ) ( 43.8 ) ( 12.6 ) ( 12.6 ) 2-1 / 4 3 4-1 / 4 15,525 3,115 3,115 ( 57 ) ( 76 ) ( 108 ) ( 69.1 ) ( 13.9 ) ( 13.9 )
1 See PTG Ed . 21 Section 3.1.8 to convert design strength value to ASD value . 2 Hilti KH-EZ SS316 and KH-EZ C SS316 screw anchors are to be considered ductile steel elements . 3 Tensile фN sa
= фA se , N f uta as noted in ACI 318 Chapter 17 . 4 Shear values determined by static shear tests with фV sa
< ф 0.60 A se , V f uta as noted in ACI 318 Chapter 17 .
5 Seismic shear values determined by seismic shear tests with ф Vsa ≤ ф 0.60 A se , V f uta as noted in ACI 318 Chapter 17 .
See PTG Ed . 21 Section 3.1.8 for additional information on seismic applications .
Figure 2 |
Anchors not permitted in shaded area
c min , 1 c min , 2
Case 2
|
|
|
|
Case 1 |
For a specific edge distance , the permitted spacing is calculated as follows :
( s min , 1 – s min , 2
) s ≥ s min , 2
+ ___________ ( c – c min , 2 )
( c min , 1 – c min , 2
)
|
spacing s
s design
|
c min , 1 at s min , 1
|
c min , 2 at s min , 2
|
s min , 2 s min , 1
Concrete Edge c designedge distance c
Table 5 — Hilti KH-EZ SS316 and KH-EZ C SS316 specifications 1
Setting information Symbol Units
Nominal anchor diameter 1 / 4 3 / 8 1 / 2
Effective minimum embedment h ef in . 1.18 1.92 1.11 1.54 2.50 1.50 2.16 3.22
Minimum member thickness h min in . 3-1 / 4 4-1 / 8 3-1 / 4 3-2 / 3 4-7 / 8 4-1 / 2 4-3 / 4 6-3 / 4
Case 1
Case 2 c min , 1 in . 2 3 1.75 for s min , 1 ≥ in . 1.5 2.25 3 c min , 2 in . 1.5 1.5 1.75 for s min , 2
≥ in . 3 3 3
1 Linear interpolation is permitted to establish an edge distance and spacing combination between Case 1 and Case 2 . Linear interpolation for a specific edge distance c , where c min , 1
< c < c min , 2 will determine the permissible spacings .
356 Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.7 KWIK HUS-EZ SS316 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