Laserfiche WebLink
eki,4-£;a·z,··-=fiRREx'VasE#-94'.*112-4;,:,·e€.4h=22·1-:T mbLf&135/Re/%#RQFLF<TRmir-TF-m-- --*¥964* ·1;*3 i=t:41 +SAJ <br />11-2 With;drawal Design Values <br />11.2,1 Lag Screws <br />I].2.1.1 The withdrawal design values, in lbs.lin. of <br />penerration, for a single lag screw inserted in side grain: <br />with the lag screw axik perpendicular ro the wood fibers, <br />shall be dearmined from Table ] 1.24 or Equation 1 J .2-1, <br />within the range 01 specific gravilies and screw diameters <br />Eiver] in Table 11.2A. Tebulated nominal design values, W, <br />shall be multiplied by all applicable adjustment factors (see <br />Table 10.3. ]) ro obrain allowable design values, W'. <br />'W=1800&3/203/aR.2-1) <br />, 11.2.]·-2 When lag screws are loaded-in wittldrawa] <br />from end grain. nominal withdrawal design values: W, <br />shall bt multiplied by the end grain factor, Ceg = 0.75. <br />1 ].2.1.3 When lag screws are loaded li] withd,awal, <br />the allowable tensile strength ofths lag Screw ar the net <br />(r6O1) Section shal] noT be exceeded (se= 10.2.3). <br />Table 11.2*Lag Screw Withdrawal Design Values (W)1 <br />Tabulated Mithdrawal design values (W) are in.pounds per inch ofthread penetration into side grain of main member. <br />Length of thread penetration in, maini maniber shall not include the length of the tapered tip (see Appendix L). <br />Specific <br />Gravity Lag Screw Uinfhreaded Shank Diameter. D <br />G 1/4" ' 5/16'8 3/8" |; 7/16" 1/2" 578"3/4" 778" , 1" 1-1/8" 1-1/4" <br />0.73 - ; 397 469 538 :604 668 789 905 - 10'16 ]123 1226 '1327 <br />0171 381 450 f .51'6 -579 ? 640 / 757 868 . 974 1077 .1·176 ·1273 <br />0.58 422 484 ·543 600 709 813 913 1009 1-103 1193 <br />0.67 349 413 . 473 531 58;7 694 796 . 893 987 . 1078 11.67 <br />0.58 281 '332 381 428 473 559 641 719 795 . 869 940 <br />0.55 260,307. 352'395 . ·427 316 - 592 664 734 ' .802 : 868 <br />0.51 232 274 .314 353 390 461,528' ' 593 , 656 .71-6 775 <br />0.50 .225 266 -' 205 : 342 378 - 447 7 513 576 - 636 695 752 <br />9249' i 218 ' 258 1 296 3,32 367 . 434 498 559 617 674 730 <br />0.47 ,-205 ·. 242 , 278 312 : '345 408 467 525 - 580 '634 · 686 <br />0.46 199 235 269.302 334 395 453 508 - 562 613 ·664 <br />0.44 T 86 220 252 283 ' 312 369 - 423 475 325 574 621 <br />0.43 179 f 212 243 ' 273 302 357 · 409 459 508 554 600 <br />:0.42 173 · 205 235 ' .264 291 ,· 144 3%443 490 535''579 <br />0.41 167 198 226 254 281 332. ' 381 428 - 47.3 516 559 <br />0-40 161 -' 19.0 218 245 -211 320 ' 367 412 - 455 497 ' 538 <br />0.39 155 F83 210 236 '26]308 353 397 438 · 429 518 <br />0.38 149 17.6 202 227 251 296 340 381 422 461 49.8 <br />0.3.7 143 169 194 218 241 285 326 367 405 443 479 <br />0.36 137 163 186 209 231 273 313 352 389 425 460 <br />0.35 132 156 179 200 222 262 300 337 313 407 44] <br />0.31 110 ]30 149 167 185 218 250 281 311 339 i 367 <br />1. Tabulated wkhdrawal design values (V.5 for lag screw connenions shali be muhiplied by. al] app!icablh adjustment faciors (sed Table 10.3.11 <br />AMERICAKWOODCOUNDL