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)
1.18( 30)
1.92( 49)
1.11( 28)
2.50( 64)
1.52( 39)
3.22( 82)
2.39( 61)
3.88( 99)
2.92( 74)
4.84( 123) f ́m = 1500 psi( 10.3 MPa) lb( kN)
455( 2.0)
885( 3.9)
480( 2.1)
1,690( 7.5)
800( 3.6)
2,475( 11.0)
1,465( 6.5)
2,485( 11.1)
1,805( 8.0)
3,515( 15.6)
Tension( lesser of breakout / pullout)- ϕN n |
|
f ́m = 2000 psi
( 13.8 MPa)
|
f ́m = 2500 psi
( 17.2 MPa)
|
lb( kN) |
lb( kN) |
455( 2.0)
885( 3.9)
480( 2.1)
1,910( 8.5)
925( 4.1)
2,855( 12.7)
1,465( 6.5)
2,485( 11.1)
2,085( 9.3)
3,515( 15.6)
455( 2.0)
885( 3.9)
480( 2.1)
1,910( 8.5)
1,015( 4.5)
3,190( 14.2)
1,465( 6.5)
2,485( 11.1)
2,335( 10.4)
3,515( 15.6) f ́m = 3000 psi( 20.7 MPa) lb( kN)
455( 2.0)
885( 3.9)
480( 2.1)
1,910( 8.5)
1,015( 4.5)
3,190( 14.2)
1,465( 6.5)
2,485( 11.1) f ́m = 1500 psi( 10.3 MPa) lb( kN)
590( 2.6)
1,225( 5.4)
540( 2.4)
2,950( 13.1)
865( 3.8)
3,450( 15.3)
1,705( 7.6)
3,920( 17.4)
Shear( lesser of pryout or crushing)- ϕV n |
|
f ́m = 2000 psi
( 13.8 MPa)
|
f ́m = 2500 psi
( 17.2 MPa)
|
lb( kN) |
lb( kN) |
680( 3.0)
1,415( 6.3)
620( 2.8)
3,170( 14.1)
995( 4.4)
3,705( 16.5)
1,965( 8.7)
4,210( 18.7)
765( 3.4)
1,585( 7.1)
695( 3.1)
3,350( 14.9)
1,115( 5.0)
3,920( 17.4)
2,200( 9.8)
4,450( 19.8) f ́m = 3000 psi( 20.7 MPa) lb( kN)
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 1. 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.
2,380( 10.6)
3,515( 15.6)
4,310( 19.2)
4,310( 19.2)
4,630( 20.6)
4,630( 20.6)
4,895( 21.8)
4,895( 21.8)
835( 3.7)
1,735( 7.7)
760( 3.4)
3,505( 15.6)
1,220( 5.4)
4,100( 18.2)
2,410( 10.7)
4,660( 20.7)
5,125( 22.8)
5,125( 22.8)
75