CSA S16 Class 4 Sections
Answer
Compression elements in members subjected to pure axial compression can be designed according to CSA S16. For members subjected to flexure or combined loading (flexure + compression), the design is currently not possible.
For a member with a very small flexural load, the load can be ignored by increasing the limit in the Ultimate Configurations to avoid the 'non-designable' result.
Keywords
CSA S16 Class 4 Class 4 Section Steel Section Class 4 Design CSA S16
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Determining Effective Lengths in RFEM 6
The stability checks for the equivalent member design according to EN 1993-1-1, AISC 360, CSA S16, and other international standards require consideration of the design length (that is, the effective length of the members). In RFEM 6, it is possible to determine the effective length manually by assigning nodal supports and effective length factors or, on the other hand, by importing it from the stability analysis. Both options will be demonstrated in this article by determining the effective length of the framed column in Image 1.
