Product Technical Guide Supplement for Seismic Bracing per NFPA 13 April 2020

22
April 2020
3,000 psi minimum
lightweight concrete
Min.
concrete
thickness
1-1/2"
max.
Min. edge distance
2-1/2"
min.
1-3/4"
min.
Maximum allowable pipe horizontal load, F
pw
(lb)
Hilti KCM-MD in the soffit of 3,000 psi or 4,000 psi lightweight concrete over metal deck
1-1/2-in B-deck profiles
1,2
Anchor size
Nominal
rod
diameter
Min. edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Hilti MQS-SP-L-1/2" and MQS-SP-T-1/2"
3,000 psi 4,000 psi
A B C A B C
30°-44° 45°-59° 60 °-74° 75°-90° 30°-44° 45°-59° 60°-74° 75°-90°
Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 4.100 1.580 0.870 1.850 4.100 1.580 0.870 1.850
3/8"-1/2" 1/2 7/8 6 2-1/2 40 103 187 88 46 119 212 102
Anchor size
Nominal
rod
diameter
Min. edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Tolco™ Figure 909 seismic brace
3,000 psi 4,000 psi
A B C A B C
30°-44° 45°-59° 60 °-74° 75°-90° 30°-44° 45°-59° 60°-74° 75°-90°
Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 2.626 1.002 0.870 1.230 2.626 1.002 0.870 1.230
1/4"-3/8" 3/8 7/8 5-1/ 2 2-1/2 60 144 161 123 69 161 179 138
3/8"-1/2" 1/2 7/8 6 2-1/ 2 62 163 187 132 72 188 212 153
3/8"-1/2"-5/8" 5/8 7/8 7-1/2 3-1/4 68 179 206 146 79 206 237 168
5/8"-3/4"
3
3/4 7/8 7-1/2 3-1/4 449 932 1020 810 507 1021 1113 894
Anchor size
Nominal
rod
diameter
Min. edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Tolco™ Figure 910/980 seismic brace
3,000 psi 4,000 psi
A B C A B C
30°-44° 45°-59° 60 °-74° 75°-90° 30°-44° 45°-59° 60°-74° 75°-90°
Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 3.275 1.156 0.910 1.739 3.275 1.156 0.910 1.739
1/4"-3/8" 3/8 7/8 5-1/ 2 2-1/2 48 129 156 90 55 145 173 104
3/8"-1/2" 1/2 7/8 6 2-1/ 2 50 141 179 94 58 163 205 108
3/8"-1/2"-5/8" 5/8 7/8 7-1/2 3-1/4 55 155 197 103 63 179 227 119
5/8"-3/4"
3
3/4 7/8 7-1/2 3-1/4 360 846 992 627 416 932 1084 699
Anchor size
Nominal
rod
diameter
Min. edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Afcon™ AF075/AF076/AF077 seismic brace
3,000 psi 4,000 psi
A B C A B C
30°-44° 45°-59° 60°-90° 30°-44° 45°-59° 60°-90°
Pr Pr Pr Pr Pr Pr
in in in in in 3.724 2.150 1.375 3.724 2.150 1.375
3/8"-1/2" 1/2 7/ 8 6 2-1/2 44 76 118 51 88 137
Anchor size
Nominal
rod
diameter
Min. edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Afcon™ AF771 seismic brace
3,000 psi 4,000 psi
A B C A B C
30°-44° 45°-59° 60°-90° 30°-44° 45°-59° 60°-90°
Pr Pr Pr Pr Pr Pr
in in in in in 4.170 2.000 0.964 4.170 2.000 0.964
3/8"-1/2" 1/2 7/ 8 6 2-1/2 39 81 169 45 94 195
3/8"-1/2"-5/8" 5/8 7/8 7-1/2 3-1/4 43 89 186 49 103 214
5/8"-3/4"
3
3/4 7/8 7-1/2 3-1/4 317 531 74 8 327 629 1046
1 Anchor may be placed in upper or lower flute. Prying factors noted assume the seismic swivel brace has its full bearing area in contact with the metal deck.
2 Only ASTM A193 Grade B7, ASTM A325, or ASTM F1554 Grade 105 threaded rod is permitted with smaller interior thread diameter. A36 threaded rod (or stronger) can be used with largest
thread diameter per insert.
3 5/8” - 3/4” only applicable for upper flute location.
3,000 psi or
4,000 psi
Lightweight over
metal deck
1-1/2-in B-deck