Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 349

Anchor Fastening Technical Guide , Edition 22
Table 24 — Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC carbon steel 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
5 / 8
3 / 4
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 )
1.18
1-5 / 8
665
710
750
820
805
900
985
1,135
( 30 )
( 41 )
( 3.0 )
( 3.2 )
( 3.3 )
( 3.6 )
( 3.6 )
( 4.0 )
( 4.4 )
( 5.1 )
1.92
2-1 / 2
1,645
1,840
2,015
2,325
2,225
2,490
2,725
3,145
( 49 )
( 64 )
( 7.3 )
( 8.2 )
( 9.0 )
( 10.4 )
( 9.9 )
( 11.1 )
( 12.1 )
( 14.0 )
1.11
1-5 / 8
980
1,095
1,200
1,385
980
1,095
1,200
1,385
( 28 )
( 41 )
( 4.4 )
( 4.9 )
( 5.3 )
( 6.2 )
( 4.4 )
( 4.9 )
( 5.3 )
( 6.2 )
1.54
2-1 / 8
1,600
1,785
1,960
2,260
1,600
1,785
1,960
2,260
( 39 )
( 54 )
( 7.1 )
( 8.0 )
( 8.7 )
( 10.1 )
( 7.1 )
( 8.0 )
( 8.7 )
( 10.1 )
1.86
2-1 / 2
2,120
2,375
2,600
3,000
2,120
2,375
2,600
3,000
( 47 )
( 64 )
( 9.4 )
( 10.6 )
( 11.6 )
( 13.3 )
( 9.4 )
( 10.6 )
( 11.6 )
( 13.3 )
2.50
3-1 / 4
3,305
3,695
4,050
4,675
3,305
3,695
4,050
4,675
( 64 )
( 83 )
( 14.7 )
( 16.4 )
( 18.0 )
( 20.8 )
( 14.7 )
( 16.4 )
( 18.0 )
( 20.8 )
1.52
2-1 / 4
1,765
1,970
2,160
2,495
1,765
1,970
2,160
2,495
( 39 )
( 57 )
( 7.8 )
( 8.8 )
( 9.6 )
( 11.1 )
( 7.8 )
( 8.8 )
( 9.6 )
( 11.1 )
2.16
3
2,990
3,340
3,660
4,225
2,990
3,340
3,660
4,225
( 55 )
( 76 )
( 13.3 )
( 14.9 )
( 16.3 )
( 18.8 )
( 13.3 )
( 14.9 )
( 16.3 )
( 18.8 )
3.22
4-1 / 4
5,440
6,080
6,660
7,690
10,875
12,160
13,320
15,380
( 82 )
( 108 )
( 24.2 )
( 27.0 )
( 29.6 )
( 34.2 )
( 48.4 )
( 54.1 )
( 59.3 )
( 68.4 )
2.39
3-1 / 4
3,475
3,890
4,260
4,920
3,475
3,890
4,260
4,920
( 61 )
( 83 )
( 15.5 )
( 17.3 )
( 18.9 )
( 21.9 )
( 15.5 )
( 17.3 )
( 18.9 )
( 21.9 )
3.03
4
4,985
5,573
6,105
7,049
10,736
12,004
13,149
15,183
( 77 )
( 102 )
( 22.2 )
( 24.8 )
( 27.2 )
( 31.4 )
( 47.8 )
( 53.4 )
( 58.5 )
( 67.5 )
3.88
5
7,195
8,040
8,810
10,170
14,385
16,085
17,620
20,345
( 99 )
( 127 )
( 32.0 )
( 35.8 )
( 39.2 )
( 45.2 )
( 64.0 )
( 71.5 )
( 78.4 )
( 90.5 )
2.92
4
4,695
5,250
5,750
6,640
9,390
10,500
11,505
13,280
( 74 )
( 102 )
( 20.9 )
( 23.4 )
( 25.6 )
( 29.5 )
( 41.8 )
( 46.7 )
( 51.2 )
( 59.1 )
4.84
6-1 / 4
10,020
11,205
12,275
14,170
20,040
22,410
24,545
28,345
( 123 )
( 159 )
( 44.6 )
( 49.8 )
( 54.6 )
( 63.0 )
( 89.2 )
( 99.7 )
( 109.2 )
( 126.1 )
3.3.6
Table 25 — Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC carbon steel 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
5 / 8
3 / 4
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 )
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 - V r ƒ ' c
= 30 MPa ( 4,350psi ) lb ( kN ) ƒ ' c
= 40 MPa ( 5,800 psi ) lb ( kN )
1.18
1-5 / 8
340
360
385
415
565
630
690
795
( 30 )
( 41 )
( 1.5 )
( 1.6 )
( 1.7 )
( 1.9 )
( 2.5 )
( 2.8 )
( 3.1 )
( 3.5 )
1.92
2-1 / 2
815
910
1,000
1,155
1,560
1,740
1,910
2,205
( 49 )
( 64 )
( 3.6 )
( 4.1 )
( 4.4 )
( 5.1 )
( 6.9 )
( 7.7 )
( 8.5 )
( 9.8 )
1.11
1-5 / 8
510
570
620
720
685
765
840
970
( 28 )
( 41 )
( 2.3 )
( 2.5 )
( 2.8 )
( 3.2 )
( 3.0 )
( 3.4 )
( 3.7 )
( 4.3 )
1.54
2-1 / 8
1,120
1,250
1,370
1,585
1,120
1,250
1,370
1,585
( 39 )
( 54 )
( 5.0 )
( 5.6 )
( 6.1 )
( 7.0 )
( 5.0 )
( 5.6 )
( 6.1 )
( 7.0 )
1.86
2-1 / 2
1,485
1,660
1,820
2,100
1,485
1,660
1,820
2,100
( 47 )
( 64 )
( 6.6 )
( 7.4 )
( 8.1 )
( 9.3 )
( 6.6 )
( 7.4 )
( 8.1 )
( 9.3 )
2.50
3-1 / 4
2,315
2,590
2,835
3,275
2,315
2,590
2,835
3,275
( 64 )
( 83 )
( 10.3 )
( 11.5 )
( 12.6 )
( 14.6 )
( 10.3 )
( 11.5 )
( 12.6 )
( 14.6 )
1.52
2-1 / 4
1,095
1,225
1,345
1,550
1,095
1,225
1,345
1,550
( 39 )
( 57 )
( 4.9 )
( 5.5 )
( 6.0 )
( 6.9 )
( 4.9 )
( 5.5 )
( 6.0 )
( 6.9 )
2.16
3
1,860
2,080
2,275
2,630
1,860
2,080
2,275
2,630
( 55 )
( 76 )
( 8.3 )
( 9.2 )
( 10.1 )
( 11.7 )
( 8.3 )
( 9.2 )
( 10.1 )
( 11.7 )
3.22
4-1 / 4
3,385
3,785
4,145
4,785
6,765
7,565
8,290
9,570
( 82 )
( 108 )
( 15.1 )
( 16.8 )
( 18.4 )
( 21.3 )
( 30.1 )
( 33.7 )
( 36.9 )
( 42.6 )
2.39
3-1 / 4
2,165
2,420
2,650
3,060
2,165
2,420
2,650
3,060
( 61 )
( 83 )
( 9.6 )
( 10.8 )
( 11.8 )
( 13.6 )
( 9.6 )
( 10.8 )
( 11.8 )
( 13.6 )
3.03
4
3,139
3,509
3,844
4,439
6,760
7,558
8,279
9,560
( 77 )
( 102 )
( 14.0 )
( 15.6 )
( 17.1 )
( 19.7 )
( 30.1 )
( 33.6 )
( 36.8 )
( 42.5 )
3.88
5
4,475
5,005
5,480
6,330
8,950
10,005
10,965
12,660
( 99 )
( 127 )
( 19.9 )
( 22.3 )
( 24.4 )
( 28.2 )
( 39.8 )
( 44.5 )
( 48.8 )
( 56.3 )
2.92
4
2,920
3,265
3,580
4,130
5,845
6,535
7,155
8,265
( 74 )
( 102 )
( 13.0 )
( 14.5 )
( 15.9 )
( 18.4 )
( 26.0 )
( 29.1 )
( 31.8 )
( 36.8 )
4.84
6-1 / 4
6,235
6,970
7,635
8,820
12,470
13,945
15,275
17,635
( 123 )
( 159 )
( 27.7 )
( 31.0 )
( 34.0 )
( 39.2 )
( 55.5 )
( 62.0 )
( 67.9 )
( 78.4 )
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 15 as necessary . Compare to the steel values in table 22 .
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
= 0.60 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 .
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