Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 313

Anchor Fastening Technical Guide , Edition 22
Table 18 — Hilti Stainless Steel KB-TZ2 design strength based on concrete failure modes in uncracked concrete per ACI 318 Ch . 17 , applicable for both hammer and core drilled installations 1 , 2 , 3 , 4
Nominal anchor diameter in .
1 / 4
3 / 8
1 / 2
5 / 8
3 / 4
1
Effective embedment in . ( mm )
Nominal embedment in . ( mm )
Tension ( lesser of concrete breakout / pullout ) - ФN n
f ́c = 2,500 psi ( 17.2 MPa ) lb ( kN ) f ́c = 3,000 psi ( 20.7 MPa ) lb ( kN ) f ́c = 4,000 psi ( 27.6 MPa ) lb ( kN ) f ́c = 6,000 psi ( 41.1 MPa ) lb ( kN )
Shear ( lesser of concrete breakout or pryout ) - ФV n
f ́c = 2,500 psi ( 17.2 MPa ) lb ( kN ) f ́c = 3,000 psi ( 20.7 MPa ) lb ( kN ) f ́c = 4,000 psi ( 27.6 MPa ) lb ( kN ) f ́c = 6,000 psi ( 41.1 MPa ) lb ( kN )
1-1 / 2
1 3 / 4
705
760
850
995
1,545
1,690
1,950
2,390
( 38 )
( 44 )
( 3.1 )
( 3.4 )
( 3.8 )
( 4.4 )
( 6.9 )
( 7.5 )
( 8.7 )
( 10.6 )
1-1 / 2
1 7 / 8
1,435
1,570
1,815
2,220
1,545
1,690
1,950
2,390
( 38 )
( 48 )
( 6.4 )
( 7.0 )
( 8.1 )
( 9.9 )
( 6.9 )
( 7.5 )
( 8.7 )
( 10.6 )
2
2 1 / 2
2,205
2,415
2,790
3,420
2,375
2,605
3,005
3,680
( 51 )
( 64 )
( 9.8 )
( 10.7 )
( 12.4 )
( 15.2 )
( 10.6 )
( 11.6 )
( 13.4 )
( 16.4 )
2-1 / 2
3
2,720
2,910
3,235
3,760
6,640
7,275
8,400
10,290
( 64 )
( 76 )
( 12.1 )
( 12.9 )
( 14.4 )
( 16.7 )
( 29.5 )
( 32.4 )
( 37.4 )
( 45.8 )
2
2 1 / 2
2,195
2,390
2,725
3,285
2,375
2,605
3,005
3,680
( 51 )
( 64 )
( 9.8 )
( 10.6 )
( 12.1 )
( 14.6 )
( 10.6 )
( 11.6 )
( 13.4 )
( 16.4 )
2-1 / 2
3
2,605
2,855
3,295
4,040
6,640
7,275
8,400
10,290
( 64 )
( 76 )
( 11.6 )
( 12.7 )
( 14.7 )
( 18.0 )
( 29.5 )
( 32.4 )
( 37.4 )
( 45.8 )
3-1 / 4
3 3 / 4
3,575
3,915
4,520
5,540
9,845
10,785
12,450
15,250
( 83 )
( 95 )
( 15.9 )
( 17.4 )
( 20.1 )
( 24.6 )
( 43.8 )
( 48.0 )
( 55.4 )
( 67.8 )
2-3 / 4
3 1 / 4
2,655
2,910
3,360
4,115
7,660
8,395
9,690
11,870
( 70 )
( 83 )
( 11.8 )
( 12.9 )
( 14.9 )
( 18.3 )
( 34.1 )
( 37.3 )
( 43.1 )
( 52.8 )
3-1 / 4
3 3 / 4
3,910
4,220
4,765
5,645
9,845
10,785
12,450
15,250
( 83 )
( 95 )
( 17.4 )
( 18.8 )
( 21.2 )
( 25.1 )
( 43.8 )
( 48.0 )
( 55.4 )
( 67.8 )
4
4 1 / 2
5,235
5,700
6,525
7,895
13,440
14,725
17,000
20,820
( 102 )
( 114 )
( 23.3 )
( 25.4 )
( 29.0 )
( 35.1 )
( 59.8 )
( 65.5 )
( 75.6 )
( 92.6 )
3-1 / 4
4
4,570
5,005
5,780
7,080
9,845
10,785
12,450
15,250
( 83 )
( 102 )
( 20.3 )
( 22.3 )
( 25.7 )
( 31.5 )
( 43.8 )
( 48.0 )
( 55.4 )
( 67.8 )
3-3 / 4 6
4 1 / 2
6,370
6,980
8,060
9,870
13,725
15,035
17,360
21,265
( 95 )
( 114 )
( 28.3 )
( 31.0 )
( 35.9 )
( 43.9 )
( 61.1 )
( 66.9 )
( 77.2 )
( 94.6 )
4-3 / 4
5 1 / 2
8,075
8,845
10,215
12,510
17,390
19,050
22,000
26,945
( 121 )
( 140 )
( 35.9 )
( 39.3 )
( 45.4 )
( 55.6 )
( 77.4 )
( 84.7 )
( 97.9 )
( 119.9 )
4
4 5 / 8
7,020
7,690
8,880
10,875
15,120
16,565
19,125
23,425
( 102 )
( 117 )
( 31.2 )
( 34.2 )
( 39.5 )
( 48.4 )
( 67.3 )
( 73.7 )
( 85.1 )
( 104.2 )
5-3 / 4
6 3 / 8
12,100
13,255
15,305
18,745
26,060
28,545
32,965
40,370
( 146 )
( 162 )
( 53.8 )
( 59.0 )
( 68.1 )
( 83.4 )
( 115.9 )
( 127.0 )
( 146.6 )
( 179.6 )
3.3.5
Table 19 — Hilti Stainless Steel KB-TZ2 design strength based on concrete failure modes in cracked concrete per ACI 318 Ch . 17 , applicable for both hammer and core drilled installations 1 , 2 , 3 , 4 , 5
Nominal anchor diameter in .
1 / 4
3 / 8
1 / 2
5 / 8
3 / 4
1
Effective embedment in . ( mm )
Nominal embedment in . ( mm )
Tension ( lesser of concrete breakout / pullout ) - ФN n
f ́c = 2,500 psi ( 17.2 MPa ) lb ( kN ) f ́c = 3,000 psi ( 20.7 MPa ) lb ( kN ) f ́c = 4,000 psi ( 27.6 MPa ) lb ( kN ) f ́c = 6,000 psi ( 41.1 MPa ) lb ( kN )
Shear ( lesser of concrete breakout or pryout ) - ФV n
f ́c = 2,500 psi ( 17.2 MPa ) lb ( kN ) f ́c = 3,000 psi ( 20.7 MPa ) lb ( kN ) f ́c = 4,000 psi ( 27.6 MPa ) lb ( kN ) f ́c = 6,000 psi ( 41.1 MPa ) lb ( kN )
1-1 / 2
1 3 / 4
300
330
380
465
1,095
1,195
1,385
1,695
( 38 )
( 44 )
( 1.3 )
( 1.5 )
( 1.7 )
( 2.1 )
( 4.9 )
( 5.3 )
( 6.2 )
( 7.5 )
1-1 / 2
1 7 / 8
1,255
1,375
1,585
1,940
1,350
1,480
1,710
2,090
( 38 )
( 48 )
( 5.6 )
( 6.1 )
( 7.1 )
( 8.6 )
( 6.0 )
( 6.6 )
( 7.6 )
( 9.3 )
2
2 1 / 2
1,930
2,115
2,440
2,990
2,080
2,275
2,630
3,220
( 51 )
( 64 )
( 8.6 )
( 9.4 )
( 10.9 )
( 13.3 )
( 9.3 )
( 10.1 )
( 11.7 )
( 14.3 )
2-1 / 2
3
2,185
2,390
2,765
3,385
4,705
5,155
5,950
7,285
( 64 )
( 76 )
( 9.7 )
( 10.6 )
( 12.3 )
( 15.1 )
( 20.9 )
( 22.9 )
( 26.5 )
( 32.4 )
2
2 1 / 2
1,565
1,710
1,975
2,420
1,685
1,845
2,130
2,605
( 51 )
( 64 )
( 7.0 )
( 7.6 )
( 8.8 )
( 10.8 )
( 7.5 )
( 8.2 )
( 9.5 )
( 11.6 )
2-1 / 2
3
2,700
2,955
3,415
4,180
5,810
6,365
7,350
9,000
( 64 )
( 76 )
( 12.0 )
( 13.1 )
( 15.2 )
( 18.6 )
( 25.8 )
( 28.3 )
( 32.7 )
( 40.0 )
3-1 / 4 8
3 3 / 4
3,235
3,545
4,095
5,015
6,970
7,640
8,820
10,800
( 83 )
( 95 )
( 14.4 )
( 15.8 )
( 18.2 )
( 22.3 )
( 31.0 )
( 34.0 )
( 39.2 )
( 48.0 )
2-3 / 4
3 1 / 4
3,110
3,410
3,935
4,820
6,705
7,345
8,480
10,385
( 70 )
( 83 )
( 13.8 )
( 15.2 )
( 17.5 )
( 21.4 )
( 29.8 )
( 32.7 )
( 37.7 )
( 46.2 )
3-1 / 4
3 3 / 4
4,000
4,380
5,060
6,195
8,615
9,435
10,895
13,345
( 83 )
( 95 )
( 17.8 )
( 19.5 )
( 22.5 )
( 27.6 )
( 38.3 )
( 42.0 )
( 48.5 )
( 59.4 )
4
4 1 / 2
4,420
4,840
5,590
6,845
9,520
10,430
12,040
14,750
( 102 )
( 114 )
( 19.7 )
( 21.5 )
( 24.9 )
( 30.4 )
( 42.3 )
( 46.4 )
( 53.6 )
( 65.6 )
3-1 / 4
4
4,000
4,380
5,060
6,195
8,615
9,435
10,895
13,345
( 83 )
( 102 )
( 17.8 )
( 19.5 )
( 22.5 )
( 27.6 )
( 38.3 )
( 42.0 )
( 48.5 )
( 59.4 )
3-3 / 4 7
4 1 / 2
4,955
5,430
6,270
7,680
10,675
11,695
13,505
16,540
( 95 )
( 114 )
( 22.0 )
( 24.2 )
( 27.9 )
( 34.2 )
( 47.5 )
( 52.0 )
( 60.1 )
( 73.6 )
4-3 / 4
5 1 / 2
5,715
6,260
7,230
8,855
15,220
16,670
19,250
23,575
( 121 )
( 140 )
( 25.4 )
( 27.8 )
( 32.2 )
( 39.4 )
( 67.7 )
( 74.2 )
( 85.6 )
( 104.9 )
4
4 5 / 8
6,240
6,835
7,895
9,665
13,440
14,725
17,000
20,820
( 102 )
( 117 )
( 27.8 )
( 30.4 )
( 35.1 )
( 43.0 )
( 59.8 )
( 65.5 )
( 75.6 )
( 92.6 )
5-3 / 4
6 3 / 8
9,410
10,310
11,905
14,580
20,270
22,205
25,640
31,400
( 146 )
( 162 )
( 41.9 )
( 45.9 )
( 53.0 )
( 64.9 )
( 90.2 )
( 98.8 )
( 114.1 )
( 139.7 )
1 See 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 22 to 33 as necessary . Compare to the steel values in Table 20 . 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 only by α N , seis = 0.75 . No reduction needed for seismic shear , except for the 3 / 4 bolts where α V , seis
= 0.81 . See Section 3.1.8 for additional information on seismic applications . 6 For core drilled installations of 3 / 4 “ anchors installed at 3-3 / 4 “ effective embedment , apply a reduction factor of 0.89 to the design tension strength . 7 For core drilled installations of 3 / 4 “ anchors installed at 3-3 / 4 “ effective embedment , apply a reduction factor of 0.81 to the design tension strength . 8 For core drilled installations of 1 / 2 " anchors installed at 3-1 / 4 effective embedment , apply a reduction factor of 0.85 to the design tension strength .
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.5 KWIK BOLT TZ2 EXPANSION 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
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