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Vulcraft Steel Roof and Floor Deck Catalog - University of Maryland ...

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1.5 (B, F, A) 18 ALLOWABLE DIAPHRAGM SHEAR STRENGTH (PLF)<br />

SUPPORT FASTENERS: #12 TEK screws<br />

SIDELAP FASTENERS: #10 TEK screws Factor <strong>of</strong> safety = 2.35<br />

Fastener<br />

SPAN (FT.-IN.)<br />

Layout * 3’-0 3’-6 4’-0 4'-6 5’-0 5’-6 6’-0 6’-6 7’-0 7’-6 8’-0 8’-6 9’-0 10’-0 K1<br />

0 454 395 347 307 275 0.699<br />

1 570 500 444 399 362 328 299 0.527<br />

2 673 596 533 481 438 402 371 342 316 295 275 258 243 0.423<br />

3 764 682 615 558 510 469 434 404 377 352 329 309 291 261 0.353<br />

4 842 760 689 629 578 533 495 461 431 405 382 360 340 304 0.303<br />

36/7 5 910 828 757 695 641 593 552 516 483 455 429 406 385 348 0.266<br />

6 967 888 817 755 699 650 606 568 533 503 475 450 427 388 0.236<br />

7 1017 941 872 809 753 702 657 617 581 548 519 492 468 426 0.213<br />

8 1059 987 920 858 802 751 705 664 626 592 561 533 508 434 0.194<br />

9 1096 1028 963 903 847 796 750 708 669 634 602 573 536 434 0.178<br />

10 1127 1063 1001 943 889 838 791 749 710 674 641 600 536 434 0.164<br />

11 1154 1094 1036 979 926 876 830 787 748 711 678 600 536 434 0.152<br />

DB = 63 DF = 111 DA = 175 K2 = 1398<br />

0 402 353 315 283 254 0.839<br />

1 498 444 400 362 331 304 281 0.603<br />

2 576 521 474 433 398 368 342 319 298 280 262 246 232 0.471<br />

3 638 585 537 496 459 426 397 372 349 329 311 294 280 251 0.386<br />

4 687 637 591 550 512 478 448 421 397 375 355 337 320 292 0.327<br />

36/5 5 726 680 637 596 559 525 494 466 441 417 396 377 359 328 0.284<br />

6 757 715 675 636 600 567 536 507 481 457 435 415 396 363 0.251<br />

7 782 744 707 671 636 603 573 544 518 494 471 450 430 396 0.224<br />

8 802 768 734 700 667 636 606 578 552 527 504 483 463 427 0.203<br />

9 819 788 756 725 694 664 636 608 582 558 535 513 493 434 0.186<br />

10 832 804 776 747 718 689 662 635 610 586 563 542 521 434 0.171<br />

11 843 818 792 765 738 711 685 660 635 612 589 568 536 434 0.158<br />

DB = 372 DF = 435 DA = 478 K2 = 1398<br />

0 308 271 241 215 193 1.049<br />

1 399 358 324 295 270 248 230 0.704<br />

2 468 427 392 360 333 309 288 269 252 238 224 210 197 0.530<br />

3 518 481 446 415 387 362 339 319 300 284 269 255 243 220 0.425<br />

4 555 522 490 460 433 407 384 363 343 326 309 295 281 257 0.355<br />

36/4 5 582 553 524 497 471 446 423 402 382 363 346 331 316 290 0.304<br />

6 603 577 552 527 502 479 456 435 416 397 380 364 349 322 0.267<br />

7 618 596 574 551 528 506 485 465 446 427 410 394 379 351 0.237<br />

8 630 611 591 571 550 530 510 490 472 454 437 421 406 378 0.213<br />

9 640 623 605 587 568 549 531 512 495 478 461 445 430 402 0.194<br />

10 648 633 617 600 583 566 549 532 515 498 483 467 452 425 0.178<br />

11 654 641 627 612 596 580 564 548 532 517 502 487 472 434 0.164<br />

DB = 526 DF = 597 DA = 630 K2 = 1398<br />

0 257 230 207 188 172 1.398<br />

1 324 298 274 253 235 218 204 0.846<br />

2 366 344 322 302 284 267 251 237 224 213 202 192 183 0.607<br />

3 393 375 356 338 321 305 290 276 262 250 239 228 218 201 0.473<br />

4 411 396 380 365 349 335 320 307 294 282 270 259 249 231 0.387<br />

36/3 5 423 410 397 384 371 358 345 332 320 308 297 286 276 257 0.328<br />

6 431 421 410 399 387 376 364 352 341 330 319 309 299 281 0.285<br />

7 437 429 420 410 400 390 379 369 358 348 338 329 319 301 0.251<br />

8 442 435 427 419 410 401 392 382 373 363 354 345 336 319 0.225<br />

9 445 439 433 425 418 410 402 393 385 376 368 359 351 334 0.204<br />

10 448 443 437 431 424 417 410 402 394 387 379 371 363 348 0.186<br />

11 450 446 441 435 429 423 416 410 403 396 388 381 374 359 0.171<br />

DB = 1084 DF = 1192 DA = 1199 K2 = 1398<br />

* = number <strong>of</strong> sidelap fasteners per span<br />

K 2<br />

G' =<br />

, Kips/inch<br />

3.78 + 0.3*D X + 3*K 1 * SPAN<br />

SPAN<br />

SPAN is in feet<br />

Substitute D B , D F , or D A for D X<br />

80

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