RAM Structural System Help

Joint Translation

The RAM Steel Column module assumes that all gravity columns are braced against joint translation (sidesway). For the AISC 360 (ASD and LRFD), ASD 9th, AS 4100, LRFD 3rd, and IS 800-07 codes this assumption has an impact on the values of Cm used in the Interaction equation, and on the ASD 9th ed. value of Cb used for the calculation of allowable bending stress Fbx used in Eq. H1‑1 (9th Ed.). In calculating Cm it is also assumed that the column is not subject to transverse loading between braced levels. For the Eurocode this assumption impacts the effective length l/L, which is set to 1.0 for all columns.