Table 9: Reliability index for LG550 cold-formed thin-walled steel axially-compressed members (Residence).

Grade ρ2 = SWk / SLk ρ1 = (SLk + SWk)/SGk Mean
0.5 1.0 2.0 3.0
A 0 4.374 4.470 4.398 4.347 4.397
0.5 4.136 4.378 4.433 4.417 4.341
1.0 4.062 4.291 4.372 4.369 4.274
2.0 3.959 4.080 4.046 4.000 4.021
3.0 3.897 3.955 3.872 3.810 3.884
4.0 3.858 3.878 3.770 3.702 3.802
B 0 4.182 4.311 4.261 4.219 4.243
0.5 3.932 4.188 4.267 4.260 4.162
1.0 3.858 4.096 4.196 4.203 4.088
2.0 3.756 3.895 3.884 3.847 3.846
3.0 3.697 3.776 3.715 3.663 3.713
4.0 3.660 3.703 3.617 3.557 3.634
C 0 4.174 4.303 4.255 4.213 4.236
0.5 3.924 4.180 4.259 4.253 4.154
1.0 3.849 4.088 4.189 4.195 4.080
2.0 3.748 3.887 3.876 3.840 3.838
3.0 3.689 3.768 3.708 3.656 3.705
4.0 3.651 3.695 3.610 3.550 3.626
D 0 4.236 4.351 4.293 4.248 4.282
0.5 3.989 4.241 4.310 4.300 4.210
1.0 3.914 4.151 4.243 4.245 4.138
2.0 3.811 3.944 3.923 3.883 3.890
3.0 3.751 3.821 3.752 3.696 3.755
4.0 3.712 3.746 3.652 3.588 3.675