Post-Installed Anchors in Masonry Canada English | Page 75

Masonry Anchor Strength Design Guide 2024
Table 2 — Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC design strength with masonry failure modes in the face of uncracked fully grouted CMU walls 1 , 2 , 3 , 4
Nominal anchor diameter in .
1 / 4
3 / 8
1 / 2
5 / 8
3 / 4
Effective embedment in . ( mm ) f ́m = 1500 psi ( 10.3 MPa ) lb ( kN )
Tension ( lesser of breakout / pullout ) - ФN n
f ́m = 2000 psi ( 13.8 MPa ) lb ( kN ) f ́m = 2500 psi ( 17.2 MPa ) lb ( kN ) f ́m = 3000 psi ( 20.7 MPa ) lb ( kN ) f ́m = 1500 psi ( 10.3 MPa ) lb ( kN )
Shear ( lesser of pryout or crushing ) - ФV n
f ́m = 2000 psi ( 13.8 MPa ) lb ( kN ) f ́m = 2500 psi ( 17.2 MPa ) lb ( kN ) f ́m = 3000 psi ( 20.7 MPa ) lb ( kN )
1.18
455
455
455
455
590
680
765
835
( 30 )
( 2.0 )
( 2.0 )
( 2.0 )
( 2.0 )
( 2.6 )
( 3.0 )
( 3.4 )
( 3.7 )
1.92
885
885
885
885
1,225
1,415
1,585
1,735
( 49 )
( 3.9 )
( 3.9 )
( 3.9 )
( 3.9 )
( 5.4 )
( 6.3 )
( 7.1 )
( 7.7 )
1.11
480
480
480
480
540
620
695
760
( 28 )
( 2.1 )
( 2.1 )
( 2.1 )
( 2.1 )
( 2.4 )
( 2.8 )
( 3.1 )
( 3.4 )
2.50
1,690
1,910
1,910
1,910
2,950
3,170
3,350
3,505
( 64 )
( 7.5 )
( 8.5 )
( 8.5 )
( 8.5 )
( 13.1 )
( 14.1 )
( 14.9 )
( 15.6 )
1.52
800
925
1,015
1,015
865
995
1,115
1,220
( 39 )
( 3.6 )
( 4.1 )
( 4.5 )
( 4.5 )
( 3.8 )
( 4.4 )
( 5.0 )
( 5.4 )
3.22
2,475
2,855
3,190
3,190
3,450
3,705
3,920
4,100
( 82 )
( 11.0 )
( 12.7 )
( 14.2 )
( 14.2 )
( 15.3 )
( 16.5 )
( 17.4 )
( 18.2 )
2.39
1,465
1,465
1,465
1,465
1,705
1,965
2,200
2,410
( 61 )
( 6.5 )
( 6.5 )
( 6.5 )
( 6.5 )
( 7.6 )
( 8.7 )
( 9.8 )
( 10.7 )
3.88
2,485
2,485
2,485
2,485
3,920
4,210
4,450
4,660
( 99 )
( 11.1 )
( 11.1 )
( 11.1 )
( 11.1 )
( 17.4 )
( 18.7 )
( 19.8 )
( 20.7 )
2.92
1,805
2,085
2,335
2,380
4,310
4,630
4,895
5,125
( 74 )
( 8.0 )
( 9.3 )
( 10.4 )
( 10.6 )
( 19.2 )
( 20.6 )
( 21.8 )
( 22.8 )
4.84
3,515
3,515
3,515
3,515
4,310
4,630
4,895
5,125
( 123 )
( 15.6 )
( 15.6 )
( 15.6 )
( 15.6 )
( 19.2 )
( 20.6 )
( 21.8 )
( 22.8 )
1 Linear interpolation between embedment depths and masonry compressive strengths is not permitted . 2 Tabular values are for a single anchor with no influence from nearby edges , hollow head joints , or additional anchors . For designs with the influence of nearby edges , hollow head joints , or additional anchors , use Hilti PROFIS Engineering Design software or perform anchor calculation using design equations from AC01 . 3 Compare masonry tabular values to the steel values in Table 8 . The lesser of the values is to be used for the design . 4 Tabular values are for static loads only . Seismic design is not permitted for uncracked masonry .
Table 3 — Hilti KH-EZ , KH-EZ P , KH-EZ PM , KH-EZ PL , KH-EZ C and KH-EZ CRC design strength with masonry failure modes in the face of cracked fully grouted CMU walls 1 , 2 , 3 , 4
Nominal anchor diameter in .
1 / 4
3 / 8
1 / 2
5 / 8
3 / 4
Effective embedment in . ( mm ) f ́m = 1500 psi ( 10.3 MPa ) lb ( kN )
Tension ( lesser of breakout / pullout ) - ФN n
f ́m = 2000 psi ( 13.8 MPa ) lb ( kN ) f ́m = 2500 psi ( 17.2 MPa ) lb ( kN ) f ́m = 3000 psi ( 20.7 MPa ) lb ( kN ) f ́m = 1500 psi ( 10.3 MPa ) lb ( kN )
Shear ( lesser of pryout or crushing ) - ФV n
f ́m = 2000 psi ( 13.8 MPa ) lb ( kN ) f ́m = 2500 psi ( 17.2 MPa ) lb ( kN ) f ́m = 3000 psi ( 20.7 MPa ) lb ( kN )
1.18
155
155
155
155
415
480
540
590
( 30 )
( 0.7 )
( 0.7 )
( 0.7 )
( 0.7 )
( 1.8 )
( 2.1 )
( 2.4 )
( 2.6 )
1.92
300
300
300
300
865
1,000
1,115
1,225
( 49 )
( 1.3 )
( 1.3 )
( 1.3 )
( 1.3 )
( 3.8 )
( 4.4 )
( 5.0 )
( 5.4 )
1.11
355
355
355
355
380
440
490
540
28 )
( 1.6 )
( 1.6 )
( 1.6 )
( 1.6 )
( 1.7 )
( 2.0 )
( 2.2 )
( 2.4 )
2.50
1,195
1,380
1,415
1,415
2,570
2,970
3,320
3,505
( 64 )
( 5.3 )
( 6.1 )
( 6.3 )
( 6.3 )
( 11.4 )
( 13.2 )
( 14.8 )
( 15.6 )
1.52
565
655
730
800
610
705
785
860
( 39 )
( 2.5 )
( 2.9 )
( 3.2 )
( 3.6 )
( 2.7 )
( 3.1 )
( 3.5 )
( 3.8 )
3.22
1,745
2,015
2,255
2,470
3,450
3,705
3,920
4,100
( 82 )
( 7.8 )
( 9.0 )
( 10.0 )
( 11.0 )
( 15.3 )
( 16.5 )
( 17.4 )
( 18.2 )
2.39
1,115
1,290
1,440
1,465
1,200
1,390
1,550
1,700
( 61 )
( 5.0 )
( 5.7 )
( 6.4 )
( 6.5 )
( 5.3 )
( 6.2 )
( 6.9 )
( 7.6 )
3.88
2,310
2,485
2,485
2,485
3,920
4,210
4,450
4,660
( 99 )
( 10.3 )
( 11.1 )
( 11.1 )
( 11.1 )
( 17.4 )
( 18.7 )
( 19.8 )
( 20.7 )
2.92
1,275
1,475
1,645
1,645
3,245
3,750
4,190
4,590
( 74 )
( 5.7 )
( 6.6 )
( 7.3 )
( 7.3 )
( 14.4 )
( 16.7 )
( 18.6 )
( 20.4 )
4.84
2,425
2,425
2,425
2,425
4,310
4,630
4,895
5,125
( 123 )
( 10.8 )
( 10.8 )
( 10.8 )
( 10.8 )
( 19.2 )
( 20.6 )
( 21.8 )
2 81
1 Linear interpolation between embedment depths and masonry compressive strengths is not permitted . 2 Tabular values are for a single anchor with no influence from nearby edges , hollow head joints , or additional anchors . For designs with the influence of nearby edges , hollow head joints , or additional anchors , use Hilti PROFIS Engineering Design software or perform anchor calculation using design equations from AC01 . 3 Compare masonry tabular values to the steel values in Table 8 . The lesser of the values is to be used for the design . 4 Tabular values are for static loads only . For seismic loads , multiply design strength values in tension and shear by the following reduction factors : 1 / 4-in diameter = 0.75 3 / 8-in diameter = 0.73 1 / 2-in , 5 / 8-in and 3 / 4-in diameters = 0.71
Masonry Fastening Technical Guide Edition 24 | 7.5 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
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