Various specifications and design standards allow the use of nominal strength of material when calculating resistance values of components for special blast or seismic design. Beyond the use of nominal strength, some design codes allow the use of an increased nominal strength or an increased expected strength.
The Steel Network is the only connector manufacturer in the US that has rated its connector products for special seismic and blast design by providing tables with Load and Resistance Factor Design (LRFD) strength, nominal strength and ultimate strength for each connector. The tables are compatible with the acceptable increased material strength.
For further information regarding the background of special seismic and blast design and the selection the appropriate design strength of the connections in the tables below or read the full Technical
MasterClip VLB Blast Loads:
MasterClip® Series
Load Direction
F1
F2
F1
F2
F3
MasterClip® Series
LRFD Design Strength (lbs)
364
2,509
1,481
3,297
2,869
MasterClip® Series
Nominal Strength (lbs)
405
2,788
1,646
3,664
3,188
MasterClip® Series
Ultimate Strength (lbs)
661
4,245
2,506
5,579
4,855
VertiClip Blast Loads
Splice600
Splice600
Splice800
Splice800
VertiClip® Series
Load Direction
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F1
F2
F2
F2
F2
F2
F2
F1
F2
F1
F2
F1
F2
F2
F2
F2
F1
F2
F1
F2
F2
F2
F2
F2
F2
F1
F2
F1
F2
F2
F3
F2
F3
VertiClip® Series
LRFD Design Strength (lbs)
397
1,696
318
1,817
588
2,691
579
2,994
664
2,521
611
2,863
82
254
575
648
1,091
364
2,563
364
2,563
357
2,563
2,266
2,266
2,266
374
1,901
388
1,606
1,991
3,315
3,398
3,036
2,909
546
822
784
1,116
2,282
3,888
2,282
3,639
VertiClip® Series
Nominal Strength (lbs)
441
1,885
353
2,019
653
2,990
643
3,327
738
2,801
679
3,182
91
282
639
720
1,212
405
2,848
405
2,848
397
2,848
2,517
2,517
2,517
416
2,112
431
1,785
2,096
3,489
3,577
3,196
3,062
575
865
825
1,175
2,402
4,092
2,402
4,044
VertiClip® Series
Ultimate Strength (lbs)
721
2,680
600
3,074
1,068
4,251
1,052
4,730
1,206
4,266
1,110
4,845
139
430
973
1,302
1,844
661
4,381
661
4,381
604
4,381
4,112
4,112
4,112
679
3,216
704
2,718
3,821
5,237
5,750
5,137
4,922
991
1,492
1,422
2,026
3,861
6,578
3,861
6,158
DriftClip Blast Loads:
Table Notes:
- 1LRFD strengths for DSLS600-15 & DSL800 are limited by fastener pattern 1.
- Strength values provided are those of the clip only. Attachment to stud framing and to structure must be evaluated independently.
- Nominal Strength is calculated as LRFD Strength divided by an average resistance factor of 0.9.
- Ultimate Strength is the average maximum load obtained from tests.
- When dynamic analysis is used in blast design, the Nominal Strength may be allowed to be increased by a Static Increase Factor (SIF) and a Dynamic Increase Factor (DIF).
DriftClip®Series
Load Direction
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
F2
DriftClip®Series
Fastener Pattern
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
DriftClip®Series
LRFD Design Strength (lbs)
1,467
916
1,536
1,507
1,977
1,722
1,924
1,627
2,980
2,788
3,045
3,045
3,582
2,664
1,859
1,850
3,026
1,915
2,917
1,991
186
85
286
399
318
293
796
397
1,242
1,840
1,666
1,666
DriftClip®Series
Nominal Strength (lbs)
1,630
1,018
1,707
1,674
2,197
1,913
2,138
1,808
3,311
3,098
3,383
3,383
3,980
2,960
2,066
2,056
3,362
2,128
3,241
2,212
207
94
317
443
354
326
884
441
1,380
2,044
1,851
1,851
DriftClip®Series
Ultimate Strength (lbs)
2,317
1,663
2,787
2,735
3,588
3,126
3,864
2,952
4,707
4,405
4,811
4,811
6,061
4,507
3,374
3,358
5,492
3,475
4,936
4,123
317
141
481
869
578
858
1,320
720
2,254
3,051
3,023
3,023
DriftTrak Blast Loads:
Table Notes:
- 1Strength values limited by corresponding 8″ fastener spacing.
- Strength values provided are those of the clip only. Attachment to stud framing and to structure must be evaluated independently.
- Nominal Strength is calculated as LRFD Strength divided by an average resistance factor of 0.9.
- Ultimate Strength is the average maximum load obtained from tests.
- When dynamic analysis is used in blast design, the Nominal Strength may be allowed to be increased by a Static Increase Factor (SIF) and a Dynamic Increase Factor (DIF).
DriftTrak® Series
Load Direction
F2
F2
F2
F2
F2
F2
F2
F2
F2
F3
F2
F3
F2
F3
F2
F3
F2
F3
F2
F3
F2
F2
F3
F2
F3
F2
F3
F2
F2
F3
F2
F3
DriftTrak® Series
Fastener Pattern
8" Fastener Spacing - Pattern 1
8" Fastener Spacing - Pattern 2
16" Fastener Spacing - Pattern 11
16" Fastener Spacing - Pattern 2
8" Fastener Spacing - Pattern 1 and 2
16" Fastener Spacing - Pattern 1 and 2
8" Fastener Spacing - Pattern 1 and 2
16" Fastener Spacing - Pattern 1 and 2
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
8" Fastener Spacing
Headed Stud
Headed Stud
Headed Stud
Headed Stud
Headed Stud
Headed Stud
Headed Stud
Headed Stud - PTS
Headed Stud - PTS
Headed Stud - PTS
Headed Stud - PTS
Headed Stud - PTS
DriftTrak® Series
LRFD Design Strength (lbs)
1,001
770
1,001
774
1,292
1,206
2,591
1,640
1,613
1,859
1,914
2,803
1,914
2,037
2,104
1,859
2,796
2,803
2,796
2,037
2,649
2,649
1,859
2,649
3,047
2,649
2,037
1,726
1,815
1,856
1,775
1,599
DriftTrak® Series
Nominal Strength (lbs)
1,112
856
1,112
860
1,435
1,340
2,879
1,822
1,792
2,065
2,126
3,115
2,126
2,264
2,338
2,065
3,106
3,115
3,106
2,264
2,943
2,943
2,065
2,943
3,386
2,943
2,264
1,918
2,017
2,062
1,973
1,777
DriftTrak® Series
Ultimate Strength (lbs)
1,807
1,303
1,807
1,309
2,186
2,040
4,384
2,775
2,729
3,145
2,935
4,743
2,935
3,447
3,560
3,145
4,288
4,743
4,288
3,447
4,063
4,063
3,145
4,063
4,674
4,063
3,447
2,701
2,784
2,846
2,723
2,453
StiffClip Blast Loads
Table Notes:
- Clip connectors and load directions have theif LRFD, nominal, and ultimate strength values all calculated using AISI S100-12 provisions.
- Strength values provided are those of the clip only. Attachment to stud framing and to structure must be evaluated independently.
- Nominal Strength is calculated as LRFD Strength divided by an average resistance factor of 0.9.
- Ultimate Strength is the average maximum load obtained from tests.
- When dynamic analysis is used in blast design, the Nominal Strength may be allowed to be increased by a Static Increase Factor (SIF) and a Dynamic Increase Factor (DIF).
StiffClip® Series
Load Direction
F1
F2
F3
F1
F2
F3
F1
F2
F3
F1
F2
F3
F1
F2
F3
F1
F2
F3
F1
F2
F3 Direction (4 #12 Screws Max.)
F3 Direction (10 #12 Screws Max.)
F1
F2
F3
F1
F2
F3
F1
F2
F3
F1
F2
F3
F2
F3
F2
F3
F2
F3
F2*
F3
F2*
F3
F2*
F3
F1
F2
F3
M1 (in-lbs)
F1
F2
F3
M1 (in-lbs)
F1
F2
F3
M1 (in-lbs)
F1
F2
F3
M1 (in-lbs)
F1
F2
F3
M1 (in-lbs)
F1
F2
F3
M1 (in-lbs)
F1
F2
F3
M1 (in-lbs)
F1
F2
F3
M1 (in-lbs)
F1
F2
F3
M1 (in-lbs)
F3
StiffClip® Series
LRFD Design Strength (lbs)
1,562
2,354
3,937
1,388
3,493
4,830
2,827
4,022
9,798
1,641
3,297
4,256
1,481
3,297
2,869
1,764
1,810
3,149
1,576
3,297
2,032
6,188
2,138
3,297
2,496
1,571
2,435
2,872
1,571
2,435
2,506
1,571
2,435
3,041
1,002
4,901
1,739
8,880
1,739
4,753
4,420
1,773
6,630
2,943
6,630
3,885
2,267
3,071
1,842
2,888
3,880
7,090
3,611
6,299
4,160
7,973
9,150
10,750
2,275
4,020
1,932
4,978
4,131
6,578
3,561
9,126
6,659
10,337
9,620
9,958
2,298
4,263
1,724
4,578
5,375
10,265
4,270
13,170
7,713
13,251
11,925
17,834
15,722
StiffClip® Series
Nominal Strength (lbs)
1,736
2,616
4,374
1,542
3,882
5,366
3,141
4,469
10,887
1,823
3,664
4,729
1,646
3,664
3,188
1,959
2,011
3,499
1,751
3,664
2,258
6,875
2,375
3,664
2,773
1,745
2,705
3,191
1,745
2,705
2,784
1,745
2,705
3,379
1,114
5,446
1,932
9,867
1,933
5,282
8,840
1,970
13,260
3,270
13,260
4,317
2,519
3,412
2,047
3,209
4,311
7,878
4,012
6,999
4,622
8,858
10,167
11,944
2,528
4,467
2,147
5,531
4,590
7,308
3,956
10,140
7,399
11,485
10,689
11,065
2,553
4,736
1,916
5,086
5,972
11,406
4,744
14,634
8,570
14,723
13,250
19,815
17,469
StiffClip® Series
Ultimate Strength (lbs)
2,643
3,983
6,661
2,348
5,911
8,172
4,784
6,806
16,579
2,776
5,579
7,202
2,506
5,579
4,855
2,984
3,062
5,328
2,667
5,579
3,438
10,470
3,617
5,579
4,223
2,658
4,120
4,859
2,658
4,120
4,240
2,658
4,120
5,146
1,696
8,293
2,943
15,026
2,943
8,043
11,492
3,000
17,238
4,980
17,238
6,574
4,122
4,851
3,349
5,251
6,129
11,201
6,565
11,453
6,572
12,595
14,455
19,545
3,594
6,351
3,513
9,050
7,147
10,391
6,474
16,592
10,520
16,330
15,197
18,106
3,630
6,734
3,135
8,323
8,491
16,217
8,291
23,946
12,185
20,933
18,839
32,425
19,127
Midwall Blast Loads:
- Strength values provided are those of the clip only. Attachment to stud framing and to structure must be evaluated independently.
- Nominal Strength is calculated as LRFD Strength divided by an average resistance factor of 0.9.
- Ultimate Strength is the average maximum load obtained from tests.
- When dynamic analysis is used in blast design, the Nominal Strength may be allowed to be increased by a Static Increase Factor (SIF) and a Dynamic Increase Factor (DIF).
250MW
362MW
600MW
Midwall® Series
Load Direction
M1 (in-lbs)
M1 (in-lbs)
M1 (in-lbs)
Midwall® Series
LRFD Design Strength (lbs)
9,855
25,567
31,328
Midwall® Series
Nominal Strength (lbs)
10,950
28,408
34,809
Midwall® Series
Ultimate Strength (lbs)
12,288
31,104
38,112
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