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 Plank Grating Load Table |
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| PLANK GRATING LOAD TABLE | ||||||||||||||
PLANK |
WT.PER |
CLEAR SPAN |
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| 2'-0" | 2'-6" | 3'-0" | 3'-6" | 4'-0" | 4'-6" | 5'-0" | 5'-6" | 6'-0" | 6'-6" | 7'-0" | 8'-0" | |||
| 3/4" | 2.2 | U |
435 |
278 .237 348 .190 |
193 .342 290 .273 |
142 .465 248 .371 |
108 .608 217 .485 |
85 .770 193 .614 |
69 .950 174 .760 |
LOADS
AND DEFLECTIONS GIVEN IN THIS TABLE ARE THEORETICAL AND ARE BASED ON A UNIT STRESS OF
12,000 PSI. U=SAFE UNIFORM LOAD, LBS. PER SQ. FT. |
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| 1" | 2.6 | U D C D |
833 |
533 .193 666 .155 |
370 .279 555 .223 |
272 .380 476 .304 |
208 .496 416 .396 |
164 .628 370 .502 |
133 .775 333 .620 |
110 .938 302 .748 |
92 1.117 277 .891 |
C=SAFE
CONCENTRATED MID-SPAN LOAD,LBS.PER FT.OF GRATING WIDTH D=DEFLECTION IN INCHES |
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| 1-1/4" | 3.2 | U D C D |
1464 .107 1464 .085 |
936 .167 1171 .133 |
650 .241 976 .192 |
478 .328 836 .262 |
366 .428 732 .342 |
289 .542 650 .433 |
234 .669 585 .535 |
193 .810 532 .647 |
162 .964 488 .771 |
138 1.131 450 .904 |
119 1.312 418 1.049 |
91 1.714 366 1.371 |
| 1-1/2" | 3.8 | U D C D |
2167 .090 2167 .072 |
1387 .141 1734 .113 |
963 .203 1445 .163 |
707 .277 1238 .221 |
541 .362 1083 .289 |
428 .458 963 .366 |
346 .566 867 .452 |
286 .684 788 .547 |
240 .815 722 .651 |
205 .956 666 .764 |
176 1.109 619 .887 |
135 1.449 541 1.157 |
| 1-3/4" | 4.4 | U D C D |
2992 .078 2992 .062 |
1915 .123 2394 .098 |
1330 .177 1995 .141 |
977 .241 1710 .192 |
748 .315 1496 .251 |
591 .398 1130 .318 |
478 .492 1197 .393 |
395 .595 1088 .476 |
332 .708 997 .566 |
283 .832 920 .644 |
244 .964 855 .771 |
187 1.260 748 1.007 |
| 2" | 4.9 | U D C D |
3975 .069 3975 .055 |
2544 .108 3180 .086 |
1776 .156 2650 .124 |
1298 .212 2271 .169 |
993 .277 1987 .221 |
785 .351 1766 .280 |
636 .433 1590 .346 |
525 .524 1445 .419 |
441 .624 1325 .499 |
376 .732 1223 .586 |
324 .849 1135 .679 |
248 1.109 993 .887 |
| 2-1/4" | 5.5 | U D C D |
5109 .061 5109 .048 |
3270 .095 4087 .076 |
2270 .137 3406 .110 |
1668 .187 2919 .149 |
1277 .244 2554 .195 |
1009 .309 2270 .247 |
817 .382 2043 .305 |
675 .462 1858 .370 |
567 .550 1703 .440 |
483 .646 1572 .517 |
417 .749 1459 .599 |
319 .979 1277 .783 |
| 2-1/2" | 5.9 | U D C D |
5971 .055 5971 .044 |
3821 .086 4777 .069 |
2654 .124 3981 .099 |
1949 .169 3412 .135 |
1492 .221 2985 .176 |
1179 .279 2654 .223 |
955 .345 2388 .276 |
789 .418 2171 .334 |
663 .497 1990 .398 |
565 .584 1837 .467 |
487 .677 1706 .541 |
373 |