Masonry Anchor Strength Design Guide 2024
Table 6 — Hilti KB1 design strength based on steel failure per ACI 318 Ch . 17 1
Nominal anchor diameter in .
3 / 8
1 / 2
5 / 8
3 / 4
Tensile 3
ФN sa lb ( kN )
Shear 4
ФV sa lb ( kN )
Seismic Shear 5
ФV sa lb ( kN )
4,760 1,170 1,170 ( 21.2 ) ( 5.2 ) ( 5.2 ) 8,145 1,970 1,970 ( 36.2 ) ( 8.8 ) ( 8.8 ) 12,875 3,460 3,460 ( 57.3 ) ( 15.4 ) ( 15.4 ) 18,220 4,985 4,985 ( 81.0 ) ( 22.2 ) ( 22.2 )
1 |
15,790 |
4,600 |
4,600 |
3 / 4x12 |
( 70.2 ) |
( 20.5 ) |
( 20.5 ) |
1 Hilti KB1 anchors are to be considered ductile steel elements with the exception of the 3 / 4 x 12 KB1 , which is a brittle steel element . 2 Tensile фN sa
= ф A se , N ƒ uta as noted in ACI 318 Ch . 17 . 3 Shear values determined by static shear tests with фV sa
< ф 0.60 A se , V ƒ uta as noted in ACI 318 Ch . 17 .
4 Seismic shear values determined by seismic shear tests with фV sa ≤ ф 0.60 A se , V ƒ uta as noted in ACI 318 Ch . 17 . See Section 3.1.8 for additional information on seismic applications .
Masonry Fastening Technical Guide Edition 24 | 7.7 KB1 EXPANSION ANCHOR 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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