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DuraGal DESIGN CAPACITY TABLES DCTDHS/06<br />

D7-24 for STRUCTURAL STEEL HOLLOW SECTIONS MARCH 2002<br />

Note: 1. N om = π 2 EI / L e<br />

2 (Clause 4.6.2 of AS 4100)<br />

TABLE D7.3.2-1(2)(A)<br />

ELASTIC BUCKLING LOADS<br />

DuraGal RECTANGULAR HOLLOW SECTIONS: GRADE C450L0<br />

Standard Thickness<br />

buckling about x-axis<br />

Designation Mass Elastic Buckling Loads N om (kN)<br />

per m<br />

d b t<br />

Effective Length (L e ) in metres<br />

mm mm mm kg/m 0.0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.5 3.0 3.5 4.0 5.0<br />

100 x 50 x 6.0 RHS 12.0 ∞ 54000 13500 6000 3370 2160 1500 1100 844 540 375 275 211 135<br />

5.0 RHS 10.3 ∞ 48300 12100 5360 3020 1930 1340 985 754 483 335 246 188 121<br />

4.0 RHS 8.49 ∞ 41300 10300 4590 2580 1650 1150 842 645 413 287 211 161 103<br />

3.5 RHS 7.53 ∞ 37300 9330 4140 2330 1490 1040 761 583 373 259 190 146 93.3<br />

3.0 RHS 6.60 ∞ 33600 8410 3740 2100 1340 934 686 525 336 233 172 131 84.1<br />

2.5 RHS 5.56 ∞ 28800 7200 3200 1800 1150 800 588 450 288 200 147 113 72.0<br />

2.0 RHS 4.50 ∞ 23700 5920 2630 1480 947 658 483 370 237 164 121 92.5 59.2<br />

1.6 RHS 3.64 ∞ 19400 4840 2150 1210 774 538 395 302 194 134 98.9 75.6 48.4<br />

75 x 50 x 6.0 RHS 9.67 ∞ 25300 6320 2810 1580 1010 702 516 395 253 175 129 98.7 63.2<br />

5.0 RHS 8.35 ∞ 22900 5730 2550 1430 917 637 468 358 229 159 117 89.6 57.3<br />

4.0 RHS 6.92 ∞ 19900 4970 2210 1240 796 553 406 311 199 138 102 77.7 49.7<br />

3.0 RHS 5.42 ∞ 16500 4120 1830 1030 659 458 336 257 165 114 84.1 64.4 41.2<br />

2.5 RHS 4.58 ∞ 14200 3550 1580 887 568 394 290 222 142 98.6 72.4 55.5 35.5<br />

2.0 RHS 3.72 ∞ 11700 2930 1300 734 469 326 240 183 117 81.5 59.9 45.8 29.3<br />

1.6 RHS 3.01 ∞ 9640 2410 1070 602 385 268 197 151 96.4 66.9 49.2 37.6 24.1<br />

75 x 25 x 2.5 RHS 3.60 ∞ 9010 2250 1000 563 360 250 184 141 90.1 62.5 46.0 35.2 22.5<br />

2.0 RHS 2.93 ∞ 7530 1880 836 471 301 209 154 118 75.3 52.3 38.4 29.4 18.8<br />

1.6 RHS 2.38 ∞ 6230 1560 693 390 249 173 127 97.4 62.3 43.3 31.8 24.3 15.6<br />

65 x 35 x 4.0 RHS 5.35 ∞ 10400 2590 1150 648 415 288 212 162 104 72.0 52.9 40.5 25.9<br />

3.0 RHS 4.25 ∞ 8880 2220 986 555 355 247 181 139 88.8 61.6 45.3 34.7 22.2<br />

2.5 RHS 3.60 ∞ 7720 1930 858 483 309 214 158 121 77.2 53.6 39.4 30.2 19.3<br />

2.0 RHS 2.93 ∞ 6440 1610 716 403 258 179 131 101 64.4 44.7 32.9 25.2 16.1<br />

50 x 25 x 3.0 RHS 3.07 ∞ 3530 882 392 221 141 98.0 72.0 55.1 35.3 24.5 18.0 13.8 8.82<br />

2.5 RHS 2.62 ∞ 3120 781 347 195 125 86.7 63.7 48.8 31.2 21.7 15.9 12.2 7.81<br />

2.0 RHS 2.15 ∞ 2650 662 294 165 106 73.5 54.0 41.4 26.5 18.4 13.5 10.3 6.62<br />

1.6 RHS 1.75 ∞ 2220 554 246 139 88.7 61.6 45.2 34.6 22.2 15.4 11.3 8.66 5.54<br />

50 x 20 x 3.0 RHS 2.83 ∞ 3000 751 334 188 120 83.5 61.3 46.9 30.0 20.9 15.3 11.7 7.51<br />

2.5 RHS 2.42 ∞ 2680 669 297 167 107 74.4 54.6 41.8 26.8 18.6 13.7 10.5 6.69<br />

2.0 RHS 1.99 ∞ 2280 571 254 143 91.3 63.4 46.6 35.7 22.8 15.9 11.7 8.92 5.71<br />

1.6 RHS 1.63 ∞ 1920 480 213 120 76.8 53.3 39.2 30.0 19.2 13.3 9.80 7.50 4.80

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