Masonry Anchor Strength Design Guide 2024
Table 7 — Hilti HIT-HY 200 V3 adhesive design strength with masonry / bond failure for threaded rod in the top of cracked fully grouted CMU walls and installed at minimum edge distance parallel with masonry course 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8
Nominal anchor diameter in .
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 / 4 |
330 |
330 |
330 |
330 |
710 |
710 |
710 |
710 |
( 70 ) |
( 1.5 ) |
( 1.5 ) |
( 1.5 ) |
( 1.5 ) |
( 3.2 ) |
( 3.2 ) |
( 3.2 ) |
( 3.2 ) |
4-1 / 2 |
540 |
540 |
540 |
540 |
940 |
1,085 |
1,165 |
1,165 |
( 114 ) |
( 2.4 ) |
( 2.4 ) |
( 2.4 ) |
( 2.4 ) |
( 4.2 ) |
( 4.8 ) |
( 5.2 ) |
( 5.2 ) |
6-3 / 4 |
810 |
810 |
810 |
810 |
940 |
1,085 |
1,215 |
1,330 |
( 171 ) |
( 3.6 ) |
( 3.6 ) |
( 3.6 ) |
( 3.6 ) |
( 4.2 ) |
( 4.8 ) |
( 5.4 ) |
( 5.9 ) |
10 |
1,200 |
1,200 |
1,200 |
1,200 |
940 |
1,085 |
1,215 |
1,330 |
( 254 ) |
( 5.3 ) |
( 5.3 ) |
( 5.3 ) |
( 5.3 ) |
( 4.2 ) |
( 4.8 ) |
( 5.4 ) |
( 5.9 ) |
3-1 / 8 |
430 |
430 |
430 |
430 |
920 |
920 |
920 |
920 |
( 79 ) |
( 1.9 ) |
( 1.9 ) |
( 1.9 ) |
( 1.9 ) |
( 4.1 ) |
( 4.1 ) |
( 4.1 ) |
( 4.1 ) |
4-1 / 2 |
615 |
615 |
615 |
615 |
1,030 |
1,190 |
1,330 |
1,330 |
( 114 ) |
( 2.7 ) |
( 2.7 ) |
( 2.7 ) |
( 2.7 ) |
( 4.6 ) |
( 5.3 ) |
( 5.9 ) |
( 5.9 ) |
6-3 / 4 |
925 |
925 |
925 |
925 |
1,055 |
1,215 |
1,360 |
1,490 |
( 171 ) |
( 4.1 ) |
( 4.1 ) |
( 4.1 ) |
( 4.1 ) |
( 4.7 ) |
( 5.4 ) |
( 6.0 ) |
( 6.6 ) |
10 |
1,370 |
1,370 |
1,370 |
1,370 |
1,055 |
1,215 |
1,360 |
1,490 |
( 254 ) |
( 6.1 ) |
( 6.1 ) |
( 6.1 ) |
( 6.1 ) |
( 4.7 ) |
( 5.4 ) |
( 6.0 ) |
( 6.6 ) |
3-1 / 2 |
470 |
470 |
470 |
470 |
1,010 |
1,010 |
1,010 |
1,010 |
( 89 ) |
( 2.1 ) |
( 2.1 ) |
( 2.1 ) |
( 2.1 ) |
( 4.5 ) |
( 4.5 ) |
( 4.5 ) |
( 4.5 ) |
4-1 / 2 |
605 |
605 |
605 |
605 |
1,300 |
1,300 |
1,300 |
1,300 |
( 114 ) |
( 2.7 ) |
( 2.7 ) |
( 2.7 ) |
( 2.7 ) |
( 5.8 ) |
( 5.8 ) |
( 5.8 ) |
( 5.8 ) |
6-3 / 4 |
905 |
905 |
905 |
905 |
1,950 |
1,950 |
1,950 |
1,950 |
( 171 ) |
( 4.0 ) |
( 4.0 ) |
( 4.0 ) |
( 4.0 ) |
( 8.7 ) |
( 8.7 ) |
( 8.7 ) |
( 8.7 ) |
10 |
1,340 |
1,340 |
1,340 |
1,340 |
2,225 |
2,570 |
2,875 |
2,890 |
( 254 ) |
( 6.0 ) |
( 6.0 ) |
( 6.0 ) |
( 6.0 ) |
( 9.9 ) |
( 11.4 ) |
( 12.8 ) |
( 12.9 ) |
1 Linear interpolation between embedment depths and masonry compressive strengths is not permitted . 2 Tabular values are for a single anchor located at minimum edge of 1-3 / 4-in ( 2-3 / 4-in for 3 / 4-in diameter ) from edge parallel with masonry course with no additional influence from nearby edges or additional anchors . For designs with the additional influence of nearby edges , a different edge distance , 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 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 0.82 . 5 Tabular values are for dry masonry conditions . For water saturated masonry conditions , multiply design strength values by α sat
1 / 2-in diameter - α sat = 0.93
5 / 8-in diameter - α sat = 0.79
3 / 4-in diameter - α sat
= 0.65 6 Tabular values are for static loads only . For seismic loads , multiply design strength values in tension and shear by : 0.75 . 7 Tabular shear values are for shear force parallel to the edge parallel with the masonry course . For shear force perpendicular to the edge parallel with the masonry course , multiply design strength values in shear by the following reduction factors : 1 / 2-in and 5 / 8-in . diameter = 0.50 3 / 4-in diameter = 0.46
8 Tabular values are for short term loads only . For sustained loads including overhead use , see Section 3.0 .
Masonry Fastening Technical Guide Edition 24 | 7.0 HIT-HY 200 V3 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
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