Post-Installed Anchors in Masonry US English | Page 42

Table 9 — Hilti HIT-HY 270 adhesive design strength with masonry / bond failure for rebar in the face of cracked fully grouted CMU walls 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8
Rebar Size
# 3
# 4
# 5
# 6
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 ) f ́m = 1500 psi ( 10.3 MPa ) lb ( kN )
Shear ( lesser of pryout or crushing ) — ΦV 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 )
2-3 / 8
620
620
620
620
665
665
665
665
( 60 )
( 2.8 )
( 2.8 )
( 2.8 )
( 2.8 )
( 3.0 )
( 3.0 )
( 3.0 )
( 3.0 )
4-1 / 2
1,170
1,170
1,170
1,170
2,525
2,525
2,525
2,525
( 114 )
( 5.2 )
( 5.2 )
( 5.2 )
( 5.2 )
( 11.2 )
( 11.2 )
( 11.2 )
( 11.2 )
6-3 / 4
1,755
1,755
1,755
1,755
3,135
3,370
3,565
3,730
( 171 )
( 7.8 )
( 7.8 )
( 7.8 )
( 7.8 )
( 13.9 )
( 15.0 )
( 15.9 )
( 16.6 )
7-1 / 2
1,955
1,955
1,955
1,955
3,135
3,370
3,565
3,730
( 191 )
( 8.7 )
( 8.7 )
( 8.7 )
( 8.7 )
( 13.9 )
( 15.0 )
( 15.9 )
( 16.6 )
2-3 / 4
485
485
485
485
1,240
1,240
1,240
1,240
( 70 )
( 2.2 )
( 2.2 )
( 2.2 )
( 2.2 )
( 5.5 )
( 5.5 )
( 5.5 )
( 5.5 )
4-1 / 2
795
795
795
795
2,030
2,030
2,030
2,030
( 114 )
( 3.5 )
( 3.5 )
( 3.5 )
( 3.5 )
( 9.0 )
( 9.0 )
( 9.0 )
( 9.0 )
6-3 / 4
1,195
1,195
1,195
1,195
3,045
3,045
3,045
3,045
( 171 )
( 5.3 )
( 5.3 )
( 5.3 )
( 5.3 )
( 13.5 )
( 13.5 )
( 13.5 )
( 13.5 )
10
1,770
1,770
1,770
1,770
3,640
3,915
4,140
4,330
( 254 )
( 7.9 )
( 7.9 )
( 7.9 )
( 7.9 )
( 16.2 )
( 17.4 )
( 18.4 )
( 19.3 )
3-1 / 8
930
930
930
930
2,360
2,360
2,360
2,360
( 79 )
( 4.1 )
( 4.1 )
( 4.1 )
( 4.1 )
( 10.5 )
( 10.5 )
( 10.5 )
( 10.5 )
4-1 / 2
1,335
1,335
1,335
1,335
3,400
3,400
3,400
3,400
( 114 )
( 5.9 )
( 5.9 )
( 5.9 )
( 5.9 )
( 15.1 )
( 15.1 )
( 15.1 )
( 15.1 )
6-3 / 4
2,005
2,005
2,005
2,005
4,065
4,365
4,615
4,830
( 171 )
( 8.9 )
( 8.9 )
( 8.9 )
( 8.9 )
( 18.1 )
( 19.4 )
( 20.5 )
( 21.5 )
10
2,970
2,970
2,970
2,970
4,065
4,365
4,615
4,830
( 254 )
( 13.2 )
( 13.2 )
( 13.2 )
( 13.2 )
( 18.1 )
( 19.4 )
( 20.5 )
( 21.5 )
3-1 / 2
770
770
770
770
1,965
1,965
1,965
1,965
( 89 )
( 3.4 )
( 3.4 )
( 3.4 )
( 3.4 )
( 8.7 )
( 8.7 )
( 8.7 )
( 8.7 )
4-1 / 2
990
990
990
990
2,525
2,525
2,525
2,525
( 114 )
( 4.4 )
( 4.4 )
( 4.4 )
( 4.4 )
( 11.2 )
( 11.2 )
( 11.2 )
( 11.2 )
6-3 / 4
1,485
1,485
1,485
1,485
3,785
3,785
3,785
3,785
( 171 )
( 6.6 )
( 6.6 )
( 6.6 )
( 6.6 )
( 16.8 )
( 16.8 )
( 16.8 )
( 16.8 )
10
2,205
2,205
2,205
2,205
4,435
4,765
5,040
5,275
( 254 )
( 9.8 )
( 9.8 )
( 9.8 )
( 9.8 )
( 19.7 )
( 21.2 )
( 22.4 )
( 23.5 )
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 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 and # 4 rebar - α sat
= 1.00 # 5 and # 6 rebar - 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 rebar = 0.67 # 4 rebar = 0.74 # 5 rebar = 0.74 # 6 rebar = 0.53
8 Tabular values are for short term loads only . For sustained loads including overhead use , see Section 3.0 .
42 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