Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 405

Table 11 — Hilti KWIK HUS screw anchor factored resistance with concrete / pullout failure in uncracked concrete 1 , 2 , 3 , 4 , 5
Nominal anchor diameter in .
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 )
Anchor Fastening Technical Guide , Edition 22
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 )
1-1 / 8
1-5 / 8
970
1,085
1,185
1,370
970
1,085
1,185
1,370
( 28 )
( 41 )
( 4.3 )
( 4.8 )
( 5.3 )
( 6.1 )
( 4.3 )
( 4.8 )
( 5.3 )
( 6.1 )
1-7 / 8
2-1 / 2
2,105
2,355
2,580
2,980
2,105
2,355
2,580
2,980
( 47 )
( 64 )
( 9.4 )
( 10.5 )
( 11.5 )
( 13.2 )
( 9.4 )
( 10.5 )
( 11.5 )
( 13.2 )
2-3 / 16
3-1 / 4
2,740
3,060
3,355
3,875
2,740
3,060
3,355
3,875
( 56 )
( 83 )
( 12.2 )
( 13.6 )
( 14.9 )
( 17.2 )
( 12.2 )
( 13.6 )
( 14.9 )
( 17.2 )
1-1 / 2
2-1 / 4
1,590
1,780
1,950
2,250
1,590
1,780
1,950
2,250
( 39 )
( 57 )
( 7.1 )
( 7.9 )
( 8.7 )
( 10.0 )
( 7.1 )
( 7.9 )
( 8.7 )
( 10.0 )
2
3
2,665
2,980
3,265
3,770
2,665
2,980
3,265
3,770
( 55 )
( 76 )
( 11.9 )
( 13.3 )
( 14.5 )
( 16.8 )
( 11.9 )
( 13.3 )
( 14.5 )
( 16.8 )
3-1 / 4
4-1 / 4
4,850
5,425
5,945
6,860
9,705
10,850
11,885
13,725
( 82 )
( 108 )
( 21.6 )
( 24.1 )
( 26.4 )
( 30.5 )
( 43.2 )
( 48.3 )
( 52.9 )
( 61.1 )
2-3 / 8
3-1 / 4
3,485
3,900
4,270
4,930
3,485
3,900
4,270
4,930
( 61 )
( 83 )
( 15.5 )
( 17.3 )
( 19.0 )
( 21.9 )
( 15.5 )
( 17.3 )
( 19.0 )
( 21.9 )
4
5
7,210
8,060
8,830
10,195
14,420
16,120
17,660
20,390
( 99 )
( 127 )
( 32.1 )
( 35.9 )
( 39.3 )
( 45.4 )
( 64.1 )
( 71.7 )
( 78.6 )
( 90.7 )
2-15 / 16
4
4,660
5,210
5,705
6,590
9,320
10,420
11,415
13,180
( 74 )
( 102 )
( 20.7 )
( 23.2 )
( 25.4 )
( 29.3 )
( 41.4 )
( 46.3 )
( 50.8 )
( 58.6 )
4-13 / 16
6-1 / 4
9,985
11,165
12,230
14,120
19,970
22,325
24,455
28,240
( 123 )
( 159 )
( 44.4 )
( 49.7 )
( 54.4 )
( 62.8 )
( 88.8 )
( 99.3 )
( 108.8 )
( 125.6 )
1 See 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 4 to 7 as necessary . Compare to the steel values in table 9 .
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 .
Table 12 — Hilti KWIK HUS in the soffit of uncracked lightweight concrete over metal deck 1 , 2 , 3 , 4 , 5 , 6 , 7
Nominal anchor diameter in .
3 / 8
1 / 2
5 / 8
3 / 4
Nominal embedment depth in . ( mm ) ƒ ' c
= 20 MPa ( 2,900 psi ) lb ( kN )
Installation in lower flute Installation in upper flute
Tension - фN r
Shear - фV r
Tension - фN r
Shear - фV r
ƒ ' c = 30 MPa
ƒ ' c = 20 MPa
ƒ ' c = 30 MPa
ƒ ' c = 20 MPa
ƒ ' c = 30 MPa
ƒ ' c = 20 MPa
(( 4,350 psi )
( 2,900 psi )
( 4,350 psi )
( 2,900 psi )
( 4,350 psi )
( 2,900 psi )
lb ( kN )
lb ( kN )
lb ( kN )
lb ( kN )
lb ( kN )
lb ( kN )
ƒ ' c
= 30 MPa ( 4,350 psi ) lb ( kN )
1-5 / 8
820
1,005
925
925
650
795
2,175
2,175
( 41 )
( 3.6 )
( 4.5 )
( 4.1 )
( 4.1 )
( 2.9 )
( 3.5 )
( 9.7 )
( 9.7 )
2-1 / 2
1,430
1,755
835
835
1,865
2,285
3,365
3,365
( 64 )
( 6.4 )
( 7.8 )
( 3.7 )
( 3.7 )
( 8.3 )
( 10.2 )
( 15.0 )
( 15.0 )
3-1 / 4
( 83 )
2,505
( 11.1 )
3,070
( 13.7 )
1,990
( 8.9 )
1,990
( 8.9 )
n / a
n / a
n / a
n / a
2-1 / 4
835
1,020
885
885
890
1,090
4,335
4,335
( 57 )
( 3.7 )
( 4.5 )
( 3.9 )
( 3.9 )
( 4.0 )
( 4.8 )
( 19.3 )
( 19.3 )
3
( 76 )
1,955
( 8.7 )
2,395
( 10.7 )
1,615
( 7.2 )
1,615
( 7.2 )
n / a
n / a
n / a
n / a
4-1 / 4
( 108 )
3,425
( 15.2 )
4,195
( 18.7 )
1,985
( 8.8 )
1,985
( 8.8 )
n / a
n / a
n / a
n / a
3-1 / 4
( 83 )
2,670
( 11.9 )
3,270
( 14.5 )
1,915
( 8.5 )
1,915
( 8.5 )
n / a
n / a
n / a
n / a
5
( 127 )
6,070
( 27.0 )
7,430
( 33.1 )
2,315
( 10.3 )
2,315
( 10.3 )
n / a
n / a
n / a
n / a
4
( 102 )
2,670
( 11.9 )
3,270
( 14.5 )
2,080
( 9.3 )
2,080
( 9.3 )
n / a
n / a
n / a
n / a
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 Tabular value is for one anchor per flute . Minimum spacing along the length of the flute is 3 x h nom
( nominal embedment ).
4 Tabular values are lightweight concrete and no additional reduction factor is needed . 5 No additional reduction factors for spacing or edge distance need to be applied . 6 Comparison of the tabular values to the steel strength is not necessary . Tabular values control . 7 Tabular values are for static loads only . Seismic design is not permitted for uncracked concrete .
3.3.10
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.10 KWIK HUS ( KH ) CARBON STEEL 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
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