Anchor Fastening Technical Guide , Edition 22
Figure 3 — Installation of Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC in soffit of concrete over steel deck floor and roof assemblies 1
1 Anchors may be placed in the upper or lower flute of the steel deck profile provided the minimum concrete cover above the drilled hole is satisfied . Anchors in the lower flute may be installed with a maximum 1-inch offset in either direction from the center of the flute . The offset distance may be increased proportionally for profiles with lower flute widths greater than those shown provided the minimum lower flute edge distance is also satisfied .
Figure 4 — Installation of Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC on the top of sand-lightweight concrete over metal floor and roof assemblies
3.3.6
Table 18 — Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC in the top of uncracked concrete over metal deck 1 , 2 , 3 , 4 , 5
Nominal anchor diameter in .
Nominal embedment depth in . ( mm ) ƒ ' c
= 3,000 psi ( 20.7 MPa ) lb ( kN )
Tension - фN n ƒ ' c
= 4,000 psi ( 27.6 MPa ) lb ( kN ) ƒ ' c
= 3,000 psi ( 20.7 MPa ) lb ( kN )
Shear - фV n ƒ ' c
= 4,000 psi ( 27.6 MPa ) lb ( kN )
1 / 4 |
1-5 / 8 ( 41 ) |
620 ( 2.8 ) |
675 ( 3.0 ) |
1,180 ( 5.2 ) |
1,360 ( 6.0 ) |
3 / 8 |
1-5 / 8 ( 41 ) |
1,000 ( 4.4 ) |
1,155 ( 5.1 ) |
1,075 ( 4.8 ) |
1,245 ( 5.5 ) |
Table 19 — Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC in the top of cracked concrete over metal deck 1 , 2 , 3 , 4 , 5
Nominal anchor diameter in .
Nominal embed . depth in . ( mm ) ƒ ' c
= 3,000 psi ( 20.7 MPa ) lb ( kN )
Tension - фN n ƒ ' c
= 4,000 psi ( 27.6 MPa ) lb ( kN ) ƒ ' c
= 3,000 psi ( 20.7 MPa ) lb ( kN )
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.6 KWIK HUS-EZ 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
Shear - фV n ƒ ' c
= 4,000 psi ( 27.6 MPa ) lb ( kN )
1 / 4 |
1-5 / 8 ( 41 ) |
315 ( 1.4 ) |
345 ( 1.5 ) |
835 ( 3.7 ) |
965 ( 4.3 ) |
3 / 8 |
1-5 / 8 ( 41 ) |
520 ( 2.3 ) |
600 ( 2.7 ) |
760 ( 3.4 ) |
880 ( 3.9 ) |
1 See PTG Ed . 21 Section 3.1.8 to convert design strength value to ASD value . 2 Linear interpolation between embedment depths and concrete compressive strengths is not permitted . 3 Apply spacing , edge distance , and concrete thickness factors in tables 20 and 21 as necessary . Compare to the steel values in table 4 . The lesser of the values is to be used for the design . 4 Tabular values are for normal weight concrete only . For lightweight concrete multiply design strength by λ a as follows : for sand-lightweight , λ a = 0.68 ; for all-lightweight , λ a
= 0.60
5 Tabular values are for static loads only . Seismic design is not permitted for uncracked concrete . For seismic tension loads , multiply cracked concrete tabular values in tension by the following reduction factors :
1 / 4-inch diameter - α N , seis = 0.60
3 / 8-inch diameter- α N , seis
= 0.75 . No reduction needed for seismic shear . See PTG Ed . 21 Section 3.1.8 for additional information on seismic applications .
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