Table 18: Reliability index for S280 cold-formed thin-walled steel axially-compressed members (Office).

ρ2 = SWk / SLk ρ1 = (SLk + SWk)/SGk Mean
0.5 1.0 2.0 3.0
0 4.950 4.742 4.533 4.444 4.667
0.5 4.928 4.925 4.753 4.663 4.817
1.0 4.822 4.902 4.763 4.677 4.791
2.0 4.534 4.397 4.172 4.066 4.292
3.0 4.365 4.151 3.899 3.787 4.051
4.0 4.263 4.012 3.748 3.632 3.914