The cross section of a column built up of two steel I-beams (IPN 180 sections) is shown in the figure. The beams are connected by spacer bars, or lacing, to ensure that they act together as a single...


The cross section of a column built up of two steel I-beams (IPN 180 sections) is shown in the figure. The beams are connected by spacer bars, or lacing, to ensure that they act together as a single column. (The lacing is represented by dashed lines in the figure.)


The column is assumed to have pinned ends and may buckle in any direction. Assuming E = 200 GPa and L = 8.5 m, calculate the critical load Pcr
for the column.

Nov 18, 2021
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