Anchor Fastening Technical Guide , Edition 22
Figure 9 — Anchor spacing and edge distance
Edge distance for shear and tension : Grout-filled , normal-weight and lightweight block
c cr
= 12 in . minimum from free edge
c min
= 4 in . minimum from free edge
Anchor spacing for shear and tension : Grout-filled , normal-weight and lightweight block
s cr
= s min
= maximum ( 1 ) anchor per cell and minimum 8 inches center-to-center spacing between anchors
3.2.5
Table 57 — Allowable loads for anchorage to the top of grout-filled block walls with Hilti HIT-ICE 1 , 2 , 3 , 4
Nominal anchor diameter in .
1 / 2
5 / 8
Effective embedment in . ( mm )
4-1 / 4 ( 108 )
5 ( 127 )
1 Allowable loads calculated using a factor of safety of 4 . 2 Allowable loads are based on masonry capacity . The steel strength must be checked . 3 Minimum edge distance is 1-3 / 4 inches . 4 Minimum masonry prism strength is 1,500 psi .
Edge distance Tension Shear lb ( kN )
in . ( mm ) lb ( kN ) Load II to edge Load ⊥ to edge 1-3 / 4 ( 45 ) 1,120 ( 5.0 ) 1,425 ( 6.3 ) 560 ( 2.5 ) 2-3 / 4 ( 70 ) 1,440 ( 6.4 ) 2,085 ( 9.3 ) 1,110 ( 4.9 ) 1-3 / 4 ( 45 ) 1,475 ( 6.5 ) 1,800 ( 8.0 ) 680 ( 3.0 ) 2-3 / 4 ( 70 ) 1,630 ( 7.2 ) 3,070 ( 13.7 ) 1,110 ( 4.9 )
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.2.5 HIT-ICE ADHESIVE ANCHORING SYSTEM 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
231