Post-Installed Anchors in Masonry US English | Page 44

Table 11 — Hilti HIT-HY 270 adhesive design strength with masonry / bond failure for rebar 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
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 )
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
475
475
475
475
510
510
510
510
( 60 )
( 2.1 )
( 2.1 )
( 2.1 )
( 2.1 )
( 2.3 )
( 2.3 )
( 2.3 )
( 2.3 )
4-1 / 2
900
900
900
900
860
995
1,110
1,215
( 114 )
( 4.0 )
( 4.0 )
( 4.0 )
( 4.0 )
( 3.8 )
( 4.4 )
( 4.9 )
( 5.4 )
6-3 / 4
1,350
1,350
1,350
1,350
860
995
1,110
1,215
( 171 )
( 6.0 )
( 6.0 )
( 6.0 )
( 6.0 )
( 3.8 )
( 4.4 )
( 4.9 )
( 5.4 )
7-1 / 2
1,500
1,500
1,500
1,500
860
995
1,110
1,215
( 191 )
( 6.7 )
( 6.7 )
( 6.7 )
( 6.7 )
( 3.8 )
( 4.4 )
( 4.9 )
( 5.4 )
2-3 / 4
335
335
335
335
855
855
855
855
( 70 )
( 1.5 )
( 1.5 )
( 1.5 )
( 1.5 )
( 3.8 )
( 3.8 )
( 3.8 )
( 3.8 )
4-1 / 2
550
550
550
550
995
1,145
1,280
1,395
( 114 )
( 2.4 )
( 2.4 )
( 2.4 )
( 2.4 )
( 4.4 )
( 5.1 )
( 5.7 )
( 6.2 )
6-3 / 4
825
825
825
825
995
1,145
1,280
1,405
( 171 )
( 3.7 )
( 3.7 )
( 3.7 )
( 3.7 )
( 4.4 )
( 5.1 )
( 5.7 )
( 6.2 )
10
1,220
1,220
1,220
1,220
995
1,145
1,280
1,405
( 254 )
( 5.4 )
( 5.4 )
( 5.4 )
( 5.4 )
( 4.4 )
( 5.1 )
( 5.7 )
( 6.2 )
3-1 / 8
560
560
560
560
1,010
1,165
1,305
1,425
( 79 )
( 2.5 )
( 2.5 )
( 2.5 )
( 2.5 )
( 4.5 )
( 5.2 )
( 5.8 )
( 6.3 )
4-1 / 2
805
805
805
805
1,085
1,255
1,405
1,535
( 114 )
( 3.6 )
( 3.6 )
( 3.6 )
( 3.6 )
( 4.8 )
( 5.6 )
( 6.2 )
( 6.8 )
6-3 / 4
1,210
1,210
1,210
1,210
1,110
1,280
1,435
1,570
( 171 )
( 5.4 )
( 5.4 )
( 5.4 )
( 5.4 )
( 4.9 )
( 5.7 )
( 6.4 )
( 7.0 )
10
1,790
1,790
1,790
1,790
1,110
1,280
1,435
1,570
( 254 )
( 8.0 )
( 8.0 )
( 8.0 )
( 8.0 )
( 4.9 )
( 5.7 )
( 6.4 )
( 7.0 )
3-1 / 2
445
445
445
445
1,090
1,130
1,130
1,130
( 89 )
( 2.0 )
( 2.0 )
( 2.0 )
( 2.0 )
( 4.8 )
( 5.0 )
( 5.0 )
( 5.0 )
4-1 / 2
570
570
570
570
1,150
1,325
1,450
1,450
( 114 )
( 2.5 )
( 2.5 )
( 2.5 )
( 2.5 )
( 5.1 )
( 5.9 )
( 6.4 )
( 6.4 )
6-3 / 4
855
855
855
855
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
1,265
1,265
1,265
1,265
1,190
1,375
1,535
1,685
( 254 )
( 5.6 )
( 5.6 )
( 5.6 )
( 5.6 )
( 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 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 .
44 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