Product Technical Guides : US-EN Anchor Fastening - August 2021 | Page 455

Anchor Fastening Technical Guide , Edition 22
Table 10 — Design strength for steel failure of common threaded rods 1 , 5
Nominal anchor diameter
Tensile 2
ϕN sa , rod or
ϕN sa , eq , rod lb ( kN )
Grade A36 threaded rod
Shear 3
ϕV sa , rod lb ( kN )
Seismic
Shear 4
ϕV sa , eq , rod lb ( kN )
ASTM A 193 B7 or ASTM F1554 Gr . 105 threaded rod
Tensile 2
ϕN sa , rod or
ϕN sa , eq , rod lb ( kN )
Shear 3
ϕV sa , rod lb ( kN )
Seismic
Shear 4
ϕV sa , eq , rod lb ( kN )
ASTM A 307 , Grade A threaded rod
Tensile 2
ϕN sa , rod or
ϕN sa , eq , rod lb ( kN )
Shear 3
ϕV sa , rod lb ( kN )
Seismic
Shear 4
ϕV sa , eq , rod lb ( kN )
1 / 4
1,390 ( 6.2 )
720 ( 3.2 )
505 ( 2.2 )
3,000 ( 13.3 )
1,550 ( 6.9 )
1,085 ( 4.8 )
1,425 ( 6.3 )
740 ( 3.3 )
520 ( 2.3 )
3 / 8
3,395 ( 15.1 )
1,750 ( 7.8 )
1,225 ( 5.4 )
7,315 ( 32.5 )
3,780 ( 16.8 )
2,645 ( 11.8 )
3,490 ( 15.5 )
1,815 ( 8.1 )
1,270 ( 5.7 )
1 / 2
6,175 ( 27.5 )
3,210 ( 14.3 )
2,245 ( 10.0 )
13,315 ( 59.2 )
6,915 ( 30.8 )
4,840 ( 21.5 )
6,375 ( 28.4 )
3,315 ( 14.7 )
2,320 ( 10.3 )
5 / 8
9,835 ( 43.7 )
5,110 ( 22.7 )
3,575 ( 15.9 )
21,190 ( 94.3 )
11,020 ( 49.0 )
7,715 ( 34.3 )
10,165 ( 45.2 )
5,285 ( 23.5 )
3,700 ( 16.5 )
3 / 4
14,550 ( 64.7 )
7,565 ( 33.7 )
5,295 ( 23.6 )
31,405 ( 139.7 )
16,305 ( 72.5 )
11,415 ( 50.8 )
15,040 ( 66.9 )
7,820 ( 34.8 )
5,475 ( 24.4 )
1 See Section 3.1.8.7 for additional information on seismic applications . 2 Tensile values determined by static tension tests with фN sa = ф A se , N f uta as noted in ACI 318 Chapter 17 . 3 Shear values determined by static shear tests with фV sa = ф 0.60 A se , V f uta as noted in ACI 318 Chapter 17 . . 4 Seismic shear values determined by seismic shear tests with ф V sa ≤ ф 0.60 A se , V f uta as noted in ACI 318 , Chapter 17 . 5 Shear values are for the threaded rods only . The capacity of the insert must be also determined from Table 3A or 3B . The calculation of concrete shear strength is not required .
Compare the shear values of threaded rod and inserts . The lesser of the values is to be used for the design strength of the anchor in shear .
3.3.16
Anchor Fastening Technical Guide Edition 22 | 3.0 ANCHORING SYSTEMS | 3.3.16 KCM-MD CAST-IN 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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