Product Technical Guide Supplement for Seismic Bracing per NFPA July 2021

Anchorage for seismic bracing technical supplement
21
July 2021
Maximum allowable pipe horizontal load, F
pw
(lb)
Hilti KCS-WF in 6,000 psi normal weight cracked concrete with Grade A36 threaded rod (or stronger)
1
Nominal
anchor
dia.
Effective
embed.
Min.
edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Hilti MQS-SP-L-1/2” and MQS-SP-T-1/2”
A B C D E F G H I
30°-44° 45°-59° 60°-74° 75°-90° 30°-44° 45°-59° 60 °-74° 75°-90° 30°-44° 45°-59° 60 °-74° 75°-90°
Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 4.10 0 1.580 0.870 1.850 1.520 2.320 2.900 3.440 3.710 2.620 2.140 1.920
1/2 1.63 3-1/4 5 5 206 410 567 371 326 318 301 254 185 262 321 357
Nominal
anchor
dia.
Effective
embed.
Min.
edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Tolco™ Figure 909 seismic brace
A B C D E F G H I
30°-44° 45°-59° 60°-74° 75°-90° 30°-44° 45°-59° 60 °-74° 75°-90° 30°-44° 45°-59° 60 °-74° 75°-90°
Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 2.490 1.080 0.950 1.360 1.650 1.400 1.830 2.220 2.710 1.920 1.570 1.400
3/8 1.11 2-1/2 3-1/ 2 5 172 294 314 258 181 253 249 221 129 182 223 250
1/2 1.63 3-1/4 5 5 302 509 543 448 313 441 438 393 225 317 388 434
5/8 1.90 4-3/4 5-3/4 5 407 721 776 625 447 613 583 495 313 442 541 606
3/4 1.83 4-1/4 5-1/ 2 5 385 681 733 591 423 580 551 468 296 418 512 573
Nominal
anchor
dia.
Effective
embed.
Min.
edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Tolco™ Figure 910/980 seismic brace
A B C D E F G H I
30°-44° 45°-59° 60°-74° 75°-90° 30°-44° 45°-59° 60 °-74° 75°-90° 30°-44° 45°-59° 60 °-74° 75°-90°
Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 2.930 1.290 0.750 0.960 1.310 1.670 1.970 2.250 1.920 1.360 1.110 0.990
3/8 1.11 2-1/2 3-1/ 2 5 153 266 352 313 202 227 235 218 156 221 270 302
1/2 1.63 3-1/4 5 5 268 462 606 541 349 396 413 388 270 382 468 523
5/8 1.90 4-3/4 5-3/4 5 358 647 879 771 506 545 549 488 386 545 667 747
3/4 1.83 4-1/4 5-1/ 2 5 339 611 831 729 478 515 519 462 365 515 631 706
Nominal
anchor
dia.
Effective
embed.
Min.
edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Afcon™ AF075/AF076/AF077 seismic brace
A B C D E F G H I
30°-44° 45°-59° 60°-90° 30°-44° 45°-59° 60°-90° 30°-44° 45°-59° 60°-90°
Pr Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 2.520 1.070 1.380 1.620 1.420 2.250 2.750 1.940 1.590
1/2 1.63 3-1/4 5 5 300 512 444 316 437 372 223 315 385
Nominal
anchor
dia.
Effective
embed.
Min.
edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Afcon™ AF771 seismic brace
A B C D E F G H I
30°-44° 45°-59° 60°-90° 30°-44° 45°-59° 60°-90° 30°-44° 45°-59° 60°-90°
Pr Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 4.170 2.000 0.960 1.970 2.380 2.960 1.930 1.360 1.110
1/2 1.63 3-1/4 5 5 204 352 541 286 312 295 270 382 468
5/8 1.90 4-3/4 5-3/4 5 264 480 771 403 421 371 385 545 667
3/4 1.83 4-1/4 5 -1/2 5 249 453 729 381 398 351 363 515 631
Nominal
anchor
dia.
Effective
embed.
Min.
edge
distance
Min.
spacing
distance
Min.
concrete
thickness
Afcon™ AF700 seismic brace
A B C D E F G H I
30°-44° 45°-59° 60°-90° 30°-44° 45°-59° 60°-90° 30°-44° 45°-59° 60°-90°
Pr Pr Pr Pr Pr Pr Pr Pr Pr
in in in in in 2.550 1.090 0.910 1.410 1.450 2.000 1.830 1.290 1.060
1/2 1.63 3-1/4 5 5 297 507 555 338 432 409 277 392 479
5/8 1.90 4-3/4 5-3/4 5 400 717 795 487 599 542 396 561 685
3/4 1.83 4-1/4 5 -1/2 5 378 678 751 460 567 512 374 530 647
1 Refer to Figure 3 for flat slab concrete installation.