ONESTEEL duragal sections

DuraGal DESIGN CAPACITY TABLES DCTDHS/06
D5-12 for STRUCTURAL STEEL HOLLOW SECTIONS MARCH 2002
DESIGN CAPACITIES FOR MEMBERS
SUBJECT TO AXIAL COMPRESSION
DuraGal RECTANGULAR HOLLOW SECTIONS: GRADE C450L0
Non-Standard Thickness
TABLE D5.2-2(A)
buckling about x-axis
Designation Mass
per m
Design Capacities for Axial Compression φN c (kN)
d b t
Effective Length (L e ) in metres
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
125 x 75 x 2.8 RHS 8.39 351 351 351 348 343 338 331 324 315 293 266 233 199 141
2.3 RHS 6.95 259 259 259 256 253 250 246 241 235 221 204 183 159 116
100 x 50 x 2.8 RHS 6.19 295 295 292 287 280 272 262 249 235 198 159 126 99.7 66.1
2.3 RHS 5.14 215 215 214 211 206 201 195 187 178 155 128 103 82.7 55.3
75 x 50 x 2.8 RHS 5.09 263 263 258 250 239 225 208 187 163 119 87.2 65.8 51.1 33.3
2.3 RHS 4.24 215 215 211 205 197 186 172 155 136 100 73.8 55.7 43.3 28.2
65 x 35 x 2.8 RHS 3.99 206 206 200 191 179 163 142 120 99.1 68.0 48.6 36.3 28.0 18.2
2.3 RHS 3.34 172 172 167 160 150 137 120 102 84.5 58.1 41.6 31.1 24.0 15.6
50 x 25 x 2.8 RHS 2.89 149 148 141 129 113 91.3 70.8 54.8 43.1 28.4 20.0 14.8 11.4 7.39
2.3 RHS 2.44 126 124 119 109 95.9 78.4 61.2 47.5 37.5 24.7 17.4 12.9 9.95 6.43
50 x 20 x 2.8 RHS 2.67 138 136 129 118 101 80.3 61.4 47.2 37.0 24.3 17.1 12.7 9.77 6.32
2.3 RHS 2.25 116 115 109 100 86.5 69.4 53.5 41.2 32.4 21.3 15.0 11.1 8.57 5.54
Notes : 1. φ = 0.9 2. φ N c
= φ α c
N s
(Clause 6.3.3 of AS 4100) 3. α b
= - 0.5 (Table 6.3.3 of AS 4100)
TABLE D5.2-2(B)
buckling about y-axis
Designation Mass
per m
Design Capacities for Axial Compression φN c (kN)
d b t
Effective Length (L e ) in metres
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
125 x 75 x 2.8 RHS 8.39 351 348 348 341 332 320 306 289 268 219 171 133 105 69.0
2.3 RHS 6.95 259 259 257 252 246 239 229 219 205 173 139 109 86.9 57.6
100 x 50 x 2.8 RHS 6.19 295 294 284 271 251 225 192 159 130 87.8 62.5 46.6 36.0 23.3
2.3 RHS 5.14 215 215 209 200 188 172 151 128 107 73.5 52.6 39.3 30.4 19.7
75 x 50 x 2.8 RHS 5.09 263 261 252 238 217 190 158 127 102 68.5 48.5 36.1 27.9 18.0
2.3 RHS 4.24 215 214 207 196 180 158 132 107 86.7 58.2 41.3 30.7 23.7 15.4
65 x 35 x 2.8 RHS 3.99 206 202 188 165 131 96.4 70.9 53.5 41.6 27.1 19.0 14.1 10.9 7.01
2.3 RHS 3.34 172 169 158 139 111 82.6 60.9 46.1 35.9 23.4 16.4 12.2 9.37 6.05
50 x 25 x 2.8 RHS 2.89 149 143 122 86.4 55.2 36.8 26.1 19.4 14.9 9.68 6.78 5.01 3.85 2.48
2.3 RHS 2.44 126 120 104 74.8 48.4 32.3 22.9 17.0 13.1 8.51 5.96 4.41 3.39 2.19
50 x 20 x 2.8 RHS 2.67 138 128 96.6 56.2 33.5 21.9 15.4 11.4 8.80 5.69 3.98 2.94 2.26 1.45
2.3 RHS 2.25 116 109 83.5 49.7 29.8 19.5 13.7 10.2 7.84 5.07 3.54 2.62 2.01 1.30
Notes : 1. φ = 0.9 2. φ N c
= φ α c
N s
(Clause 6.3.3 of AS 4100) 3. α b
= - 0.5 (Table 6.3.3 of AS 4100)