Vulcraft K Series - Engineering Data - BuildSite

LRFD

STANDARD LOAD TABLE FOR KCS OPEN WEB STEEL JOISTS Based on a 50 ksi Maximum Yield Strength

JOIST DESIGNATION

10KCS1 10KCS2 10KCS3 12KCS1 12KCS2 12KCS3 14KCS1 14KCS2 14KCS3 16KCS2 16KCS3 16KCS4 16KCS5 18KCS2 18KCS3 18KCS4 18KCS5 20KCS2 20KCS3 20KCS4 20KCS5 22KCS2 22KCS3 22KCS4 22KCS5 24KCS2 24KCS3 24KCS4 24KCS5 26KCS2 26KCS3 26KCS4 26KCS5 28KCS2 28KCS3 28KCS4 28KCS5 30KCS3 30KCS4 30KCS5

DEPTH (inches)

10 10 10 12 12 12 14 14 14 16 16 16 16 18 18 18 18 20 20 20 20 22 22 22 22 24 24 24 24 26 26 26 26 28 28 28 28 30 30 30

MOMENT CAPACITY (inch-kips)

258 337 444 313 411 543 370 486 642 523 705 1080 1401 592 798 1225 1593 663 892 1371 1786 732 987 1518 1978 801 1080 1662 2172 870 1174 1809 2364 939 1269 1954 2556 1362 2100 2749

SHEAR CAPACITY*

(lbs)

3000 3750 4500 3600 4500 5250 4350 5100 5850 6000 7200 7950 8700 7050 7800 8550 9300 7800 9000 11850 12600 8850 9900 11850 12900 9450 10800 12600 13350 9900 11700 12750 13800 10350 12000 12750 13800 12000 12750 13800

APPROX. WEIGHT**

(lbs/ft)

6.0 7.5 10.0 6.0 8.0 10.0 6.5 8.0 10.0 8.5 10.5 14.5 18.0 9.0 11.0 15.0 18.5 9.5 11.5 16.5 20.0 10.0 12.5 16.5 20.5 10.0 12.5 16.5 20.5 10.0 12.5 16.5 20.5 10.5 12.5 16.5 20.5 13.0 16.5 21.0

GROSS MOMENT OF INERTIA (in.4)

29 37 47 43 55 71 59 77 99 99 128 192 245 127 164 247 316 159 205 308 396 194 251 377 485 232 301 453 584 274 355 536 691 320 414 626 808 478 722 934

BRIDGING TABLE

SECTION NUMBER

1 1 1 3 5 5 4 6 6 6 9 9 9 6 9 10 10 6 9 10 10 6 9 11 11 6 9 12 12 6 9 12 12 6 9 12 12 9 12 12

*MAXIMUM UNIFORMLY DISTRIBUTED LOAD CAPACITY IS 825 PLF AND SINGLE CONCENTRATED LOAD CANNOT EXCEED SHEAR CAPACITY **DOES NOT INCLUDE ACCESSORIES

32

ASD

STANDARD LOAD TABLE FOR KCS OPEN WEB STEEL JOISTS Based on a 50 ksi Maximum Yield Strength

JOIST DESIGNATION

10KCS1 10KCS2 10KCS3 12KCS1 12KCS2 12KCS3 14KCS1 14KCS2 14KCS3 16KCS2 16KCS3 16KCS4 16KCS5 18KCS2 18KCS3 18KCS4 18KCS5 20KCS2 20KCS3 20KCS4 20KCS5 22KCS2 22KCS3 22KCS4 22KCS5 24KCS2 24KCS3 24KCS4 24KCS5 26KCS2 26KCS3 26KCS4 26KCS5 28KCS2 28KCS3 28KCS4 28KCS5 30KCS3 30KCS4 30KCS5

DEPTH (inches)

10 10 10 12 12 12 14 14 14 16 16 16 16 18 18 18 18 20 20 20 20 22 22 22 22 24 24 24 24 26 26 26 26 28 28 28 28 30 30 30

MOMENT CAPACITY* (inch-kips)

172 225 296 209 274 362 247 324 428 349 470 720 934 395 532 817 1062 442 595 914 1191 488 658 1012 1319 534 720 1108 1448 580 783 1206 1576 626 846 1303 1704 908 1400 1833

SHEAR CAPACITY*

(lbs)

2000 2500 3000 2400 3000 3500 2900 3400 3900 4000 4800 5300 5800 4700 5200 5700 6200 5200 6000 7900 8400 5900 6600 7900 8600 6300 7200 8400 8900 6600 7800 8500 9200 6900 8000 8500 9200 8000 8500 9200

APPROX. WEIGHT**

(lbs/ft)

6.0 7.5 10.0 6.0 8.0 10.0 6.5 8.0 10.0 8.5 10.5 14.5 18.0 9.0 11.0 15.0 18.5 9.5 11.5 16.5 20.0 10.0 12.5 16.5 20.5 10.0 12.5 16.5 20.5 10.0 12.5 16.5 20.5 10.5 12.5 16.5 20.5 13.0 16.5 21.0

GROSS MOMENT OF INERTIA (in.4)

29 37 47 43 55 71 59 77 99 99 128 192 245 127 164 247 316 159 205 308 396 194 251 377 485 232 301 453 584 274 355 536 691 320 414 626 808 478 722 934

BRIDGING TABLE

SECTION NUMBER

1 1 1 3 5 5 4 6 6 6 9 9 9 6 9 10 10 6 9 10 10 6 9 11 11 6 9 12 12 6 9 12 12 6 9 12 12 9 12 12

*MAXIMUM UNIFORMLY DISTRIBUTED LOAD CAPACITY IS 550 PLF AND SINGLE CONCENTRATED LOAD CANNOT EXCEED SHEAR CAPACITY

**DOES NOT INCLUDE ACCESSORIES

33

NOTES

34

ACCESSORIES AND DETAILS JOIST SUBSTITUTES K SERIES

Joist substitutes are 2.5 inch (64 mm) deep sections intended for use in very short spans (less than 8 feet (2.4 m) where Open Web Steel Joists are impractical. They are commonly specified to span over hallways and short spans in skewed bays.

Joist substitutes are fabricated from material conforming to Steel Joist Institute Specifications. Full lateral support to the compressive flange is provided by attachments to the deck. Caution must be exercised during erection since joist substi-

tutes exhibit some degree of instability. After erection and before loads of any description are placed on the joist substitutes, the ends must be attached to the supports per SJI KSeries specifications and the deck installed and attached to the top flange.

Tables below list uniform loads based on LRFD and ASD methods of design and listed in U.S. Customary units:

LRFD

ASD

4'-0"

825

825

825

5'-0"

825

825

825

338

465

6'-0"

561

779

825

189

260

354

7'-0"

405

563

810

116

160

218

8'-0"

306

426

612

76

105

143

9'-0"

--

333

480

--

73

99

10'-0"

--

267

386

--

52

71

4'-0"

550

550

550

5'-0"

550

550

550

338

465

6'-0"

374

519

550

189

260

354

7'-0"

270

375

540

116

160

218

8'-0"

204

284

408

76

105

143

9'-0"

--

222

320

--

73

99

10'-0"

--

178

257

--

52

71

The figures shown in red are the uniform live loads which produce an approximate deflection of 1/360 of the span. Live loads which will produce a deflection of 1/240 of the span may be obtained by multiplying

the figures in red by 1.5. In no case shall the total load capacity of the joist substitute be exceeded.

35

ACCESSORIES AND DETAILS

FABRICATION

? Depth

2.5 in

? Maximum Length

10 ft

? Minimum Length

3 ft

? Contact your local Vulcraft plant for sloped

or pitched seat information.

2.5K SERIES SIMPLE SPAN INFORMATION

2.5K TYPE S in3

I in4

WT lbs/ft

2.5K1 0.62

0.78

3.0

2.5K2 0.84

1.1

4.2

2.5K3 1.2

1.5

6.4

NOTE: 2.5K SERIES NOT U.L. APPROVED.

NOTE: 2.5K SERIES NOT U.L. APPROVED.

LRFD

ASD

2.5K1 2.5K2 2.5K3

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 825 749 519 381 293 231 188 155 -- -- 825 825 698 512 392 311 251 207 174 -- 825 825 825 740 566 447 362 299 252 215

2.5K1 2.5K2 2.5K3

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0" 5'-6" 6'-0" 6'-6" 550 499 346 254 195 154 125 103 -- -- 550 550 465 341 261 207 167 138 116 -- 550 550 550 493 377 298 241 199 168 143

*Serviceability requirements must be checked by the specifying professional.

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