Determine the governing effective length of a steel column, Civil Engineering

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Determine the governing effective length of a steel column?

Determine the governing effective length of a W12 x 106 steel column that is 12' high, pinned at each end, and braced at mid-height about the weaker y-axis. Assume r_x / r_y = 1.76.

Solution:

- About weak y-axis, K*Ly = 6'

- About strong x-axis, K*Lx = 12'

- The equivalent effective length about the major axis with respect to y-axis is:

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