Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 366

Table 14 — Hilti KH-EZ SS316 and KH-EZ C SS316 screw anchor factored resistance with concrete / pullout failure in uncracked concrete 1 , 2 , 3 , 4
Nominal anchor diameter in .
1 / 4
3 / 8
1 / 2
Effective embed . in . ( mm )
Nominal embed . in . ( mm ) ƒ ' c
= 20 MPa ( 2,900psi ) lb ( kN ) ƒ ' c
= 25 MPa ( 3,625 psi ) lb ( kN )
Tension - N r ƒ ' c
= 30 MPa ( 4,350 psi ) lb ( kN ) ƒ ' c
= 40 MPa ( 5,800 psi ) lb ( kN ) ƒ ' c
= 20 MPa ( 2,900 psi ) lb ( kN ) ƒ ' c
= 25 MPa ( 3,625 psi ) lb ( kN )
Shear - V r ƒ ' c
= 30 MPa ( 4,350 psi ) lb ( kN ) ƒ ' c
= 40 MPa ( 5,800 psi ) lb ( kN )
1.19
1-5 / 8
925
1,030
1,130
1,305
925
1,030
1,130
1,305
( 30 )
( 41 )
( 4.1 )
( 4.6 )
( 5.0 )
( 5.8 )
( 4.1 )
( 4.6 )
( 5.0 )
( 5.8 )
1.93
2-1 / 2
1,680
1,880
2,060
2,380
1,680
1,880
2,060
2,380
( 49 )
( 64 )
( 7.5 )
( 8.4 )
( 9.2 )
( 10.6 )
( 7.5 )
( 8.4 )
( 9.2 )
( 10.6 )
1.49
2
1,710
1,915
2,095
2,420
1,710
1,915
2,095
2,420
( 38 )
( 51 )
( 7.6 )
( 8.5 )
( 9.3 )
( 10.8 )
( 7.6 )
( 8.5 )
( 9.3 )
( 10.8 )
1.92
2-1 / 2
2,505
2,800
3,065
3,540
2,505
2,800
3,065
3,540
( 49 )
( 64 )
( 11.1 )
( 12.5 )
( 13.6 )
( 15.8 )
( 11.1 )
( 12.5 )
( 13.6 )
( 15.8 )
2.55
3-1 / 4
3,830
4,285
4,695
5,420
3,830
4,285
4,695
5,420
( 65 )
( 83 )
( 17.0 )
( 19.1 )
( 20.9 )
( 24.1 )
( 17.0 )
( 19.1 )
( 20.9 )
( 24.1 )
1.56
2-1 / 4
1,560
1,745
1,910
2,205
1,560
1,745
1,910
2,205
( 40 )
( 57 )
( 6.9 )
( 7.8 )
( 8.5 )
( 9.8 )
( 6.9 )
( 7.8 )
( 8.5 )
( 9.8 )
2.20
3
2,610
2,920
3,195
3,690
2,610
2,920
3,195
3,690
( 56 )
( 76 )
( 11.6 )
( 13.0 )
( 14.2 )
( 16.4 )
( 11.6 )
( 13.0 )
( 14.2 )
( 16.4 )
3.26
4-1 / 4
4,710
5,265
5,765
6,660
9,415
10,530
11,535
13,320
( 83 )
( 108 )
( 20.9 )
( 23.4 )
( 25.7 )
( 29.6 )
( 41.9 )
( 46.8 )
( 51.3 )
( 59.2 )
Table 15 — Hilti KH-EZ SS316 and KH-EZ C SS316 screw anchor factored resistance with concrete / pullout failure in cracked concrete 1 , 2 , 3 , 4 , 5
Nominal anchor diameter in .
1 / 4
3 / 8
1 / 2
Effective embed . in . ( mm )
Nominal embed . in . ( mm ) ƒ ' c
= 20 MPa ( 2,900psi ) lb ( kN ) ƒ ' c
= 25 MPa ( 3,625 psi ) lb ( kN )
Tension - N r ƒ ' c
= 30 MPa ( 4,350 psi ) lb ( kN ) ƒ ' c
= 40 MPa ( 5,800 psi ) lb ( kN ) ƒ ' c
= 20 MPa ( 2,900 psi ) lb ( kN ) ƒ ' c
= 25 MPa ( 3,625 psi ) lb ( kN )
Shear - V r ƒ ' c
= 30 MPa ( 4,350 psi ) lb ( kN ) ƒ ' c
= 40 MPa ( 5,800 psi ) lb ( kN )
1.19
1-5 / 8
330
350
370
405
655
735
805
925
( 30 )
( 41 )
( 1.5 )
( 1.6 )
( 1.7 )
( 1.8 )
( 2.9 )
( 3.3 )
( 3.6 )
( 4.1 )
1.93
2-1 / 2
770
860
945
1,090
1,195
1,335
1,465
1,690
( 49 )
( 64 )
( 3.4 )
( 3.8 )
( 4.2 )
( 4.8 )
( 5.3 )
( 5.9 )
( 6.5 )
( 7.5 )
1.49
2
1,055
1,180
1,295
1,495
1,080
1,210
1,325
1,530
( 38 )
( 51 )
( 4.7 )
( 5.3 )
( 5.8 )
( 6.7 )
( 4.8 )
( 5.4 )
( 5.9 )
( 6.8 )
1.92
2-1 / 2
1,550
1,735
1,900
2,195
1,580
1,765
1,935
2,235
( 49 )
( 64 )
( 6.9 )
( 7.7 )
( 8.5 )
( 9.8 )
( 7.0 )
( 7.9 )
( 8.6 )
( 9.9 )
2.55
3-1 / 4
2,420
2,705
2,960
3,420
2,420
2,705
2,960
3,420
( 65 )
( 83 )
( 10.8 )
( 12.0 )
( 13.2 )
( 15.2 )
( 10.8 )
( 12.0 )
( 13.2 )
( 15.2 )
1.56
2-1 / 4
1,220
1,365
1,495
1,725
1,220
1,365
1,495
1,725
( 40 )
( 57 )
( 5.4 )
( 6.1 )
( 6.6 )
( 7.7 )
( 5.4 )
( 6.1 )
( 6.6 )
( 7.7 )
2.20
3
2,040
2,285
2,500
2,890
2,040
2,285
2,500
2,890
( 56 )
( 76 )
( 9.1 )
( 10.2 )
( 11.1 )
( 12.8 )
( 9.1 )
( 10.2 )
( 11.1 )
( 12.8 )
3.26
4-1 / 4
3,685
4,120
4,510
5,210
7,365
8,235
9,020
10,420
( 83 )
( 108 )
( 16.4 )
( 18.3 )
( 20.1 )
( 23.2 )
( 32.8 )
( 36.6 )
( 40.1 )
( 46.3 )
1 See PTG Ed . 21 section 3.1.8 to convert factored resistance 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 6 to 11 as necessary . Compare to the steel values in table 12 .
The lesser of the values is to be used for the design . 4 Tablular 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-in diameter by 1-5 / 8-in nominal embedment depth - α N , seis
= 0.51 All other sizes - 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 .
362 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