Post-Installed Anchors in Masonry US English | Page 38

Table 5 — Hilti HIT-HY 270 adhesive design strength with masonry / bond failure for threaded rod in the face of cracked fully grouted CMU walls and installed at minimum distance from centerline of hollow head joint 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8
Nominal anchor diameter in .
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 or bond ) — ΦN 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 )
Shear ( lesser of breakout , pryout , or crushing ) — ΦV n
f ́m = 1500 psi ( 10.3 MPa ) lb ( kN ) 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 )
2-3 / 8
500
500
500
500
540
540
540
540
( 60 )
( 2.2 )
( 2.2 )
( 2.2 )
( 2.2 )
( 2.4 )
( 2.4 )
( 2.4 )
( 2.4 )
4-1 / 2
945
945
945
945
860
995
1,110
1,215
( 114 )
( 4.2 )
( 4.2 )
( 4.2 )
( 4.2 )
( 3.8 )
( 4.4 )
( 4.9 )
( 5.4 )
6-3 / 4
1,420
1,420
1,420
1,420
860
995
1,110
1,215
( 171 )
( 6.3 )
( 6.3 )
( 6.3 )
( 6.3 )
( 3.8 )
( 4.4 )
( 4.9 )
( 5.4 )
7-1 / 2
1,575
1,575
1,575
1,575
860
995
1,110
1,215
( 191 )
( 7.0 )
( 7.0 )
( 7.0 )
( 7.0 )
( 3.8 )
( 4.4 )
( 4.9 )
( 5.4 )
2-3 / 4
490
490
490
490
920
1,065
1,190
1,250
( 70 )
( 2.2 )
( 2.2 )
( 2.2 )
( 2.2 )
( 4.1 )
( 4.7 )
( 5.3 )
( 5.6 )
4-1 / 2
805
805
805
805
995
1,145
1,280
1,405
( 114 )
( 3.6 )
( 3.6 )
( 3.6 )
( 3.6 )
( 4.4 )
( 5.1 )
( 5.7 )
( 6.2 )
6-3 / 4
1,205
1,205
1,205
1,205
995
1,145
1,280
1,405
( 171 )
( 5.4 )
( 5.4 )
( 5.4 )
( 5.4 )
( 4.4 )
( 5.1 )
( 5.7 )
( 6.2 )
10
1,785
1,785
1,785
1,785
995
1,145
1,280
1,405
( 254 )
( 7.9 )
( 7.9 )
( 7.9 )
( 7.9 )
( 4.4 )
( 5.1 )
( 5.7 )
( 6.2 )
3-1 / 8
505
505
505
505
1,010
1,165
1,280
1,280
( 79 )
( 2.2 )
( 2.2 )
( 2.2 )
( 2.2 )
( 4.5 )
( 5.2 )
( 5.7 )
( 5.7 )
4-1 / 2
725
725
725
725
1,085
1,255
1,405
1,535
( 114 )
( 3.2 )
( 3.2 )
( 3.2 )
( 3.2 )
( 4.8 )
( 5.6 )
( 6.2 )
( 6.8 )
6-3 / 4
1,090
1,090
1,090
1,090
1,110
1,280
1,435
1,570
( 171 )
( 4.8 )
( 4.8 )
( 4.8 )
( 4.8 )
( 4.9 )
( 5.7 )
( 6.4 )
( 7.0 )
10
1,610
1,610
1,610
1,610
1,110
1,280
1,435
1,570
( 254 )
( 7.2 )
( 7.2 )
( 7.2 )
( 7.2 )
( 4.9 )
( 5.7 )
( 6.4 )
( 7.0 )
3-1 / 2
450
450
450
450
1,090
1,140
1,140
1,140
( 89 )
( 2.0 )
( 2.0 )
( 2.0 )
( 2.0 )
( 4.8 )
( 5.1 )
( 5.1 )
( 5.1 )
4-1 / 2
575
575
575
575
1,150
1,325
1,465
1,465
( 114 )
( 2.6 )
( 2.6 )
( 2.6 )
( 2.6 )
( 5.1 )
( 5.9 )
( 6.5 )
( 6.5 )
6-3 / 4
865
865
865
865
1,190
1,375
1,535
1,685
( 171 )
( 3.8 )
( 3.8 )
( 3.8 )
( 3.8 )
( 5.3 )
( 6.1 )
( 6.8 )
( 7.5 )
10
1,280
1,280
1,280
1,280
1,190
1,375
1,535
1,685
( 254 )
( 5.7 )
( 5.7 )
( 5.7 )
( 5.7 )
( 5.3 )
( 6.1 )
( 6.8 )
( 7.5 )
1 Linear interpolation between embedment depths and masonry compressive strengths is not permitted .
2 Tabular values are for a single anchor located 2-in from centerline of a hollow head joint with no additional influence from nearby edges or additional anchors . For designs with the influence of nearby edges , different distances to a hollow head joint , or additional anchors , use Hilti PROFIS Engineering Design software or perform anchor calculation using design equations from AC58 . 3 Compare masonry tabular values to the steel values in the Appendix . The lesser of the values is to be used for the design . 4 The maximum embedment for a 8-in CMU block is 6-3 / 4-in . The maximum embedment for a 10-in CMU block is 8-in . The maximum embedment for a 12-in CMU block is 10-in . 5 Data is for Temperature Range A : Maximum short term temperature = 130 ° F ( 55 ° C ) | Maximum long term temperature = 110 ° F ( 43 ° C ).
For Temperature Range B : Maximum short term temperature = 176 ° F ( 80 ° C ) | Maximum long term temperature = 110 ° F ( 43 ° C ), multiply design strength values by 0.91 . 6 Tabular values are for dry masonry conditions . For water saturated masonry conditions , multiply design strength values by : α sat
, 3 / 8-in and 1 / 2-in diameter - α sat
= 1.00 5 / 8-in and 3 / 4-in diameter - α sat
= 0.93
7 Tabular values are for static loads only . For seismic loads , multiply design strength values in tension and shear by the following reduction factors : 3 / 8-in diameter = 0.74 1 / 2-in diameter = 0.65 5 / 8-in diameter = 0.66 3 / 4-in diameter = 0.74
8 Tabular values are for short term loads only . For sustained loads including overhead use , see Section 3.0 and multiply design strength values in tension and shear by 0.80 .
38 Masonry Fastening Technical Guide Edition 24 | 7.1 HIT-HY 270 HYBRID FOR MASONRY CONSTRUCTION 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