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L�L GJ� 8 LOAD TABLE FOR STEEL GRATING Wis" CENTER • CENTER ONVEASION TAM BELOYPES AA, WA, IWB To OTHER TYPES SEE, ) .' ,FEARING SPAN •,:lAR.81iE 9'1 t 2'-0- 2'-6- 0'-0' 1'4• 4'-0' 4'-0' S'-0• I S'-1• 2••0• 8'-2• Y-0• 8'-0� U 316 447 172 126 % 16 3i X SS" .129 ,048 D .096 .150 .416 .494 .382 .485 Untr 51'en-18.000 an. par Sp. In. ,• 386 309 957 221 -T9-3 172 U-Undmm loud roved$ per 54. n. D .077 .120 .173 .435 .307 .388 C-Cereeomled food-Pound,per ft of Width _ U 1 S 190 145 115 p�peaecr;ao-tnehe.. 1:'k x%4' .194 .073 D .096 .150 .216 .494 .384 .485 5-Seaton Medvler per N, of Wldrh 5-Fl 463 397 334 490 2S2 I-Momenr al Ineeio Per k. of vndth D .077 .120 .173 .435 .307 .388 L'116+ - U 6Tr 4 OS 444 172 136 110 91 76 i• 1x�" .229 ,114 D .072 .112 .162 .440 .289 .365 .451 .545 .646 C 6Y6--34Y 452 302 343 305 474 450 44 D .058 .090 .130 .176 .230 .494 .360 .436 .519 !? U 1030 619 458 336 457- 203 165 136 114 I X Ma" .343 .172 D .074 .112 .162 .440 .289 .365 .451 .543 .646 1030 2 ! 696 522 51 458 41t 374 343 D .058 .090 .130 .176 .430 .494 .360 .436 .519 U 1 74 686 47 350 268 14 17 1 1 1 14 x'A" .358 ,224D .058 .090 .130 .176 .230 .TN .360 .435 .516 .607 .704 -1042 S V 713 613 $36 47 429, 390 Ise 330 306 D .046 .074 .104 .141 .184 .233 .288 .348 .415 .486 .562 1610 1031 -Tr 526 407 312 458 413 179 134- 131 ''llf xYii' .537 .336 D •058 .090 .130 .176 .230 .292 .360 .435 .516 .607 .704 ..i 1610 14712 10 4 940 716 6 506. 1 S3 4 460 1 D .046 .074 .104 .141 .184 .433 .288 .348, .415 .486 .562 1544 982 626 50! 386 305 247 904 1 179. 146 146 .515 .387 D .040. .075 .108 .147 .102 .443 390 .363 .434' .506 .587 .765 1344 1436 1 30 1 606 61 $64 515 475 441 386 D :038 .060 .086 .112 .154 ,194 .240 .991 ,346 .40S .470 .614 U 4320 1425 1031 758 380 452 171 307 458 44 1 145 1 1 h x'.Ss" .773 ,580 D .048 .075 .108 .147 .194 ,443 .300 .363 ,434` .506 .587 .765 1 C 97 f 56 154 13 6 1160 1031 498 44 773 14 663 D .038 .060 .086 .118 .154 .194 .240 .291 1346, .405 470 .614 U 3158 9041 1404 1031 790 94 418 1 99 552 197 1�.x'.Si' I.OS3 .921 D .041 .064 .093 .126 .165 .208 .257 .312 .370 .435 .505 657 31 4596 105 1203 1579 1404 1 63, 1148 1 053 902 7W D .033 .OS1 .074 .101 .132 .167 .206 .449 .348 .403 .527 1033 U 34-7 D 036 4 a V90 337 131 25 4056 81 1.110 1.144 ,184 44S .44 .344 f) ,441 576 1.373 1.375 4145 5700 27SO 357 -96U- 1233 5 0 S 46 11 1031 D .049, .045 .06S .088 .115 .146 .180 .4 .459 .304 .353 .461 1 3341 340 1704 1305 1031 23S 0 S 494 446 326- 2% 46 2%xY'ie" 1.740 1.957 D .032 .050 .074 .098 .128 , .167 .200 .94 8 .338 .392 .512 C 5441 4170 3480 29s3 2010 4 022 -189f- 1740 106 1494 1305 0 .046 .040 .058 .078 .104 .130 .160 .194 .230 .270 .314 .410 6M5 4145 9864 2104 1611 1 1 1031 BS-2 10 546 403 2%x-Ms" 2.148 2.685 D 049 .045 .06S .088 .115 .146 .180 .412 .259 304 .353 .461 C 6445 5156 7 3683 3444 4 4578 4344 148 1981 1 41 16 D .043 .036 .054 .070 .094 .117 .144 ,174 .407 .243 .284 ,369 ,9 Spoils to left of heavy line produce a deflection of 440 or less under a uniform load of 100 pounds per sq. ft.This deflection Is 2 recommended as the maximum to provide pedestrian comfort It can be exceeded at tha^discretion of the engineer. R CONVERSION To determine S. I,and food for other types shown below, multiply value above by the corresponding load factor ' !' TTPE We TWD CM-1 CM-2 I CM-3 I CM-1 II CM-3 M.O.E O,A CC DD LOAD FACTOR 1.28 2.711 2.35 1.90 1.72 1.45 1.15 1.61 .82 58 Deflection under the factored Toads will be same as shown in load table. 14EAVY LOAbgi Occasionally there are open grating requirements calling for very heavy loading, especially heavy wheel concen• trations. These, of course, call for heavy "special" designs, and we are prepared to design and fabricate an Irving Grating that will meet your.requirements. 33 A