Section designation | Compression resistance Nb,y,Rd, Nb,z,Rd, Nb,T,Rd (kN) for buckling lengths (m) | ||||||||||||||||||
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Axis | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 5.0 | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | ||
UBP 356 x 368 x 174 | Nb,y,Rd | 9,750 | 9,750 | 9,750 | 9,660 | 9,550 | 9,440 | 9,330 | 9,070 | 8,760 | 8,390 | 7,930 | 7,380 | 6,760 | 6,100 | 5,470 | 4,880 | 4,350 | |
Nb,z,Rd | 9,750 | 9,660 | 9,480 | 9,290 | 9,070 | 8,820 | 8,530 | 7,770 | 6,770 | 5,690 | 4,710 | 3,900 | 3,260 | 2,760 | 2,350 | 2,030 | 1,770 | ||
Nb,T,Rd | 9,750 | 9,660 | 9,490 | 9,320 | 9,150 | 8,980 | 8,800 | 8,460 | 8,120 | 7,820 | 7,560 | 7,340 | 7,160 | 7,000 | 6,870 | 6,760 | 6,680 | ||
UBP 356 x 368 x 152 | Nb,y,Rd | 8,520 | 8,520 | 8,520 | 8,440 | 8,350 | 8,250 | 8,150 | 7,920 | 7,650 | 7,320 | 6,910 | 6,420 | 5,870 | 5,290 | 4,730 | 4,220 | 3,760 | |
Nb,z,Rd | 8,520 | 8,440 | 8,290 | 8,120 | 7,920 | 7,700 | 7,440 | 6,760 | 5,870 | 4,920 | 4,070 | 3,360 | 2,810 | 2,370 | 2,020 | 1,750 | 1,520 | ||
Nb,T,Rd | 8,520 | 8,440 | 8,290 | 8,130 | 7,970 | 7,800 | 7,630 | 7,270 | 6,920 | 6,580 | 6,270 | 6,010 | 5,800 | 5,610 | 5,460 | 5,340 | 5,230 | ||
UBP 356 x 368 x 133 | * | Nb,y,Rd | 7,650 | 7,650 | 7,650 | 7,570 | 7,480 | 7,390 | 7,300 | 7,090 | 6,830 | 6,520 | 6,140 | 5,680 | 5,170 | 4,640 | 4,140 | 3,680 | 3,270 |
Nb,z,Rd | 7,650 | 7,570 | 7,420 | 7,260 | 7,090 | 6,880 | 6,630 | 5,990 | 5,170 | 4,300 | 3,540 | 2,920 | 2,440 | 2,050 | 1,750 | 1,510 | 1,320 | ||
Nb,T,Rd | 7,650 | 7,560 | 7,420 | 7,270 | 7,110 | 6,950 | 6,770 | 6,390 | 5,980 | 5,590 | 5,240 | 4,940 | 4,690 | 4,490 | 4,320 | 4,180 | 4,070 | ||
UBP 356 x 368 x 109 | * | Nb,y,Rd | 5,760 | 5,760 | 5,760 | 5,710 | 5,650 | 5,590 | 5,520 | 5,370 | 5,190 | 4,970 | 4,700 | 4,390 | 4,020 | 3,640 | 3,260 | 2,920 | 2,600 |
Nb,z,Rd | 5,760 | 5,710 | 5,610 | 5,490 | 5,370 | 5,220 | 5,050 | 4,600 | 4,020 | 3,380 | 2,800 | 2,320 | 1,940 | 1,640 | 1,400 | 1,210 | 1,050 | ||
Nb,T,Rd | 5,760 | 5,710 | 5,600 | 5,490 | 5,370 | 5,240 | 5,110 | 4,790 | 4,440 | 4,090 | 3,770 | 3,490 | 3,260 | 3,060 | 2,910 | 2,780 | 2,680 | ||
UBP 305 x 305 x 223 | Nb,y,Rd | 12,500 | 12,500 | 12,500 | 12,300 | 12,200 | 12,000 | 11,800 | 11,400 | 10,900 | 10,300 | 9,520 | 8,640 | 7,710 | 6,810 | 5,990 | 5,280 | 4,660 | |
Nb,z,Rd | 12,500 | 12,300 | 12,000 | 11,700 | 11,300 | 10,900 | 10,300 | 8,960 | 7,350 | 5,900 | 4,750 | 3,880 | 3,210 | 2,690 | 2,290 | 1,970 | 1,710 | ||
Nb,T,Rd | 12,500 | 12,300 | 12,100 | 12,000 | 11,800 | 11,700 | 11,600 | 11,400 | 11,300 | 11,200 | 11,200 | 11,100 | 11,100 | 11,100 | 11,100 | 11,000 | 11,000 | ||
UBP 305 x 305 x 186 | Nb,y,Rd | 10,400 | 10,400 | 10,400 | 10,300 | 10,100 | 9,980 | 9,830 | 9,490 | 9,060 | 8,520 | 7,860 | 7,100 | 6,310 | 5,560 | 4,880 | 4,290 | 3,790 | |
Nb,z,Rd | 10,400 | 10,200 | 9,990 | 9,720 | 9,410 | 9,020 | 8,560 | 7,350 | 5,990 | 4,790 | 3,850 | 3,130 | 2,590 | 2,170 | 1,850 | 1,590 | 1,380 | ||
Nb,T,Rd | 10,400 | 10,300 | 10,100 | 9,920 | 9,770 | 9,630 | 9,520 | 9,320 | 9,170 | 9,060 | 8,980 | 8,920 | 8,870 | 8,830 | 8,800 | 8,780 | 8,760 | ||
UBP 305 x 305 x 149 | Nb,y,Rd | 8,360 | 8,360 | 8,320 | 8,210 | 8,110 | 7,990 | 7,870 | 7,580 | 7,220 | 6,780 | 6,220 | 5,600 | 4,960 | 4,350 | 3,820 | 3,350 | 2,960 | |
Nb,z,Rd | 8,360 | 8,190 | 8,000 | 7,770 | 7,510 | 7,190 | 6,790 | 5,790 | 4,680 | 3,720 | 2,980 | 2,420 | 2,000 | 1,680 | 1,430 | 1,230 | 1,060 | ||
Nb,T,Rd | 8,360 | 8,200 | 8,050 | 7,890 | 7,740 | 7,600 | 7,460 | 7,220 | 7,020 | 6,860 | 6,730 | 6,630 | 6,560 | 6,490 | 6,440 | 6,400 | 6,370 | ||
UBP 305 x 305 x 126 | Nb,y,Rd | 7,070 | 7,070 | 7,030 | 6,940 | 6,850 | 6,750 | 6,640 | 6,400 | 6,090 | 5,700 | 5,220 | 4,680 | 4,140 | 3,620 | 3,170 | 2,780 | 2,460 | |
Nb,z,Rd | 7,070 | 6,920 | 6,750 | 6,560 | 6,330 | 6,050 | 5,710 | 4,840 | 3,890 | 3,090 | 2,470 | 2,010 | 1,660 | 1,390 | 1,180 | 1,010 | 881 | ||
Nb,T,Rd | 7,070 | 6,930 | 6,780 | 6,640 | 6,490 | 6,340 | 6,200 | 5,920 | 5,680 | 5,470 | 5,310 | 5,180 | 5,070 | 4,980 | 4,920 | 4,860 | 4,810 | ||
UBP 305 x 305 x 110 | Nb,y,Rd | 6,440 | 6,440 | 6,400 | 6,320 | 6,230 | 6,140 | 6,040 | 5,800 | 5,500 | 5,110 | 4,650 | 4,140 | 3,630 | 3,170 | 2,760 | 2,420 | 2,130 | |
Nb,z,Rd | 6,440 | 6,300 | 6,140 | 5,950 | 5,730 | 5,460 | 5,120 | 4,270 | 3,400 | 2,680 | 2,130 | 1,730 | 1,430 | 1,190 | 1,010 | 871 | 756 | ||
Nb,T,Rd | 6,440 | 6,300 | 6,160 | 6,010 | 5,860 | 5,690 | 5,530 | 5,190 | 4,890 | 4,630 | 4,410 | 4,240 | 4,110 | 4,000 | 3,910 | 3,840 | 3,780 | ||
UBP 305 x 305 x 95 | Nb,y,Rd | 5,560 | 5,560 | 5,520 | 5,450 | 5,370 | 5,290 | 5,200 | 4,990 | 4,730 | 4,390 | 3,980 | 3,540 | 3,100 | 2,700 | 2,350 | 2,060 | 1,810 | |
Nb,z,Rd | 5,560 | 5,430 | 5,290 | 5,130 | 4,930 | 4,690 | 4,390 | 3,650 | 2,890 | 2,270 | 1,810 | 1,470 | 1,210 | 1,010 | 859 | 738 | 641 | ||
Nb,T,Rd | 5,560 | 5,430 | 5,300 | 5,170 | 5,020 | 4,860 | 4,690 | 4,340 | 4,000 | 3,710 | 3,480 | 3,290 | 3,140 | 3,030 | 2,940 | 2,860 | 2,800 | ||
UBP 305 x 305 x 88 | * | Nb,y,Rd | 5,000 | 5,000 | 4,970 | 4,910 | 4,840 | 4,760 | 4,690 | 4,500 | 4,270 | 3,980 | 3,620 | 3,220 | 2,830 | 2,470 | 2,160 | 1,890 | 1,660 |
Nb,z,Rd | 5,000 | 4,890 | 4,760 | 4,620 | 4,450 | 4,240 | 3,970 | 3,320 | 2,640 | 2,080 | 1,660 | 1,340 | 1,110 | 927 | 787 | 676 | 587 | ||
Nb,T,Rd | 5,000 | 4,890 | 4,770 | 4,650 | 4,520 | 4,370 | 4,210 | 3,870 | 3,540 | 3,260 | 3,030 | 2,850 | 2,700 | 2,590 | 2,500 | 2,430 | 2,370 | ||
UBP 305 x 305 x 79 | * | Nb,y,Rd | 4,300 | 4,300 | 4,280 | 4,220 | 4,170 | 4,110 | 4,040 | 3,890 | 3,700 | 3,460 | 3,160 | 2,830 | 2,490 | 2,180 | 1,910 | 1,680 | 1,480 |
Nb,z,Rd | 4,300 | 4,210 | 4,100 | 3,980 | 3,840 | 3,660 | 3,450 | 2,900 | 2,320 | 1,840 | 1,470 | 1,190 | 982 | 823 | 699 | 600 | 521 | ||
Nb,T,Rd | 4,300 | 4,210 | 4,110 | 4,000 | 3,880 | 3,750 | 3,610 | 3,300 | 2,990 | 2,720 | 2,490 | 2,320 | 2,180 | 2,070 | 1,980 | 1,920 | 1,860 | ||
UBP 254 x 254 x 85 | Nb,y,Rd | 4,990 | 4,980 | 4,900 | 4,820 | 4,720 | 4,620 | 4,510 | 4,230 | 3,850 | 3,390 | 2,910 | 2,460 | 2,090 | 1,780 | 1,530 | 1,320 | 1,160 | |
Nb,z,Rd | 4,940 | 4,800 | 4,640 | 4,440 | 4,190 | 3,860 | 3,470 | 2,660 | 2,010 | 1,540 | 1,210 | 973 | 798 | 666 | 564 | 484 | 419 | ||
Nb,T,Rd | 4,940 | 4,820 | 4,690 | 4,560 | 4,420 | 4,290 | 4,170 | 3,940 | 3,760 | 3,630 | 3,520 | 3,440 | 3,380 | 3,330 | 3,290 | 3,260 | 3,240 | ||
UBP 254 x 254 x 71 | Nb,y,Rd | 4,160 | 4,150 | 4,080 | 4,010 | 3,940 | 3,850 | 3,760 | 3,510 | 3,190 | 2,800 | 2,400 | 2,030 | 1,720 | 1,460 | 1,250 | 1,090 | 948 | |
Nb,z,Rd | 4,120 | 4,000 | 3,860 | 3,700 | 3,480 | 3,200 | 2,870 | 2,180 | 1,640 | 1,260 | 988 | 794 | 651 | 544 | 460 | 395 | 342 | ||
Nb,T,Rd | 4,120 | 4,010 | 3,890 | 3,760 | 3,630 | 3,490 | 3,350 | 3,090 | 2,870 | 2,710 | 2,580 | 2,480 | 2,410 | 2,350 | 2,310 | 2,270 | 2,240 | ||
UBP 254 x 254 x 63 | * | Nb,y,Rd | 3,640 | 3,630 | 3,580 | 3,510 | 3,450 | 3,370 | 3,290 | 3,080 | 2,800 | 2,460 | 2,100 | 1,780 | 1,510 | 1,280 | 1,100 | 954 | 833 |
Nb,z,Rd | 3,610 | 3,500 | 3,380 | 3,240 | 3,040 | 2,800 | 2,510 | 1,910 | 1,440 | 1,100 | 865 | 695 | 570 | 476 | 403 | 346 | 300 | ||
Nb,T,Rd | 3,600 | 3,510 | 3,400 | 3,280 | 3,160 | 3,020 | 2,880 | 2,600 | 2,380 | 2,200 | 2,070 | 1,970 | 1,890 | 1,830 | 1,790 | 1,750 | 1,720 | ||
UBP 203 x 203 x 54 | Nb,y,Rd | 3,160 | 3,120 | 3,050 | 2,980 | 2,900 | 2,800 | 2,680 | 2,380 | 2,000 | 1,640 | 1,330 | 1,090 | 905 | 762 | 649 | 558 | 486 | |
Nb,z,Rd | 3,090 | 2,970 | 2,810 | 2,600 | 2,320 | 2,000 | 1,680 | 1,180 | 858 | 647 | 503 | 403 | 329 | 274 | 231 | 198 | 171 | ||
Nb,T,Rd | 3,090 | 2,990 | 2,890 | 2,780 | 2,680 | 2,580 | 2,490 | 2,350 | 2,250 | 2,180 | 2,120 | 2,080 | 2,060 | 2,030 | 2,020 | 2,000 | 1,990 | ||
UBP 203 x 203 x 45 | Nb,y,Rd | 2,630 | 2,590 | 2,540 | 2,480 | 2,410 | 2,320 | 2,220 | 1,960 | 1,650 | 1,340 | 1,090 | 891 | 740 | 622 | 529 | 456 | 396 | |
Nb,z,Rd | 2,570 | 2,470 | 2,340 | 2,160 | 1,920 | 1,640 | 1,380 | 964 | 699 | 526 | 410 | 327 | 268 | 223 | 188 | 161 | 139 | ||
Nb,T,Rd | 2,570 | 2,480 | 2,380 | 2,270 | 2,160 | 2,050 | 1,950 | 1,780 | 1,660 | 1,570 | 1,510 | 1,460 | 1,430 | 1,400 | 1,390 | 1,370 | 1,360 |
∗ The section may be Class 4 under axial compression
Values in italic type indicate that the section is a Class 4 section in pure compression and allowance has been made in calculating the resistance
For values of the compression cross-sectional resistance, Nc,Rd, see values of Npl,Rd in tables for axial force and bending