AISC PARTE 1

Page 452

4 - 86

BEAM AND GIRDER DESIGN

W 18

BEAMS W Shapes Maximum factored uniform loads in kips for beams laterally supported

Fy = 50 ksi

For beams laterally unsupported, see page 4-139 Designation

Span (ft)

Fy = 50 ksi

Wt./ft

W 18 192

175

158

W 18 143

130

119

106

97

86

76

597 575 531 493 460 431

537 528 487 452 422 396

477 465 429 399 372 349

418 408 376 349 326 306

11 12 13 14 15 16

1050 1020 947 884 829

963 918 853 796 746

863 822 763 712 668

768 743 690 644 604

696 672 624 582 546

671 653 602 559 522 489

17 18 19 20 21 22

780 737 698 663 631 603

702 663 628 597 569 543

628 593 562 534 509 485

568 537 508 483 460 439

514 485 459 437 416 397

461 435 412 392 373 356

406 383 363 345 329 314

372 352 333 317 301 288

328 310 294 279 266 254

288 272 257 245 233 222

23 24 25 26 27 28

577 553 530 510 491 474

519 498 478 459 442 426

464 445 427 411 396 381

420 403 386 372 358 345

380 364 349 336 323 312

340 326 313 301 290 280

300 288 276 265 256 246

275 264 253 243 234 226

243 233 223 215 207 199

213 204 196 188 181 175

29 30 31 32 33 34

457 442 428 414 402 390

412 398 385 373 362 351

368 356 345 334 324 314

333 322 312 302 293 284

301 291 282 273 265 257

270 261 253 245 237 230

238 230 223 216 209 203

218 211 204 198 192 186

192 186 180 174 169 164

169 163 158 153 148 144

35 36 37 38 39 40

379 368 358 349 340 332

341 332 323 314 306 299

305 297 289 281 274 267

276 268 261 254 248 242

249 243 236 230 224 218

224 218 212 206 201 196

197 192 186 182 177 173

181 176 171 167 162 158

159 155 151 147 143 140

140 136 132 129 125 122

42 44

316 301

284 271

254 243

230 220

208 198

186 178

164 157

151 144

133 127

116 111

442 13300 527 293 48.0 449 26.9 412 35.8 449

398 11900 482 250 44.5 382 23.9 350 31.9 395

230 6900 298 120 29.5 158 12.6 143 16.8 199

211 6330 269 104 26.8 132 10.2 119 13.7 165

186 5580 238 86.3 24.0 105 8.45 94.9 11.3 133

163 4890 209 73.0 21.3 82.4 6.71 74.3 8.94 104

Properties and Reaction Values Zx in.3 φbWc kip-ft φvVn kips φR1 kips φR2 kips/in. φr R3 kips φr R4 kips/in. φr R5 kips φr R6 kips/in. φR (N = 31⁄4) kips

356 10700 431 215 40.5 315 20.2 289 27.0 347

322 9660 384 183 36.5 258 16.4 237 21.8 301

291 8730 348 157 33.5 217 14.1 199 18.8 262

261 7830 335 143 32.8 197 15.1 178 20.2 246

Load above heavy line is limited by design shear strength.

AMERICAN INSTITUTE OF STEEL CONSTRUCTION


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