3. Determine Slenderness Effects

CSA A23.3-19 (10.14.1.2)

CSA A23.3-19 (Eq. 8.1)

For the column below level 2:

For the column above level 2:

For beams framing into the columns:

Where:

CSA A23.3-19 (Eq. 8.1)

CSA A23.3-19 (10.14.1.2)

(Column considered fixed at the base)

Using the following figure à k = 1.378 for the exterior column.

05

Figure 2 - Effective Length Factor (k) for Exterior Column (Sway Frame)

Note:

CSA A23.3-19 (Cl. 10.15.2) allows to neglect the slenderness in a non-sway frame. However, there is no such clause in for sway frames. The CSA A23.3-19 committee intended that all columns in sway frames should be designed for slenderness.