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Home / Questions / A W8x24 A992 column has an effective length of 12 5 ft about the y-axis and 28 ft about th...

# A W8x24 A992 column has an effective length of 12 5 ft about the y-axis and 28 ft about the x-axis. Determine the available compressive strength and indicate whether if this is due to elastic

1. A W8x24, A992 column has an effective length of 12.5 ft about the y-axis and 28 ft about the x-axis. Determine the available compressive strength and indicate whether if this is due to elastic or inelastic buckling. Determine the (a) design strength by LRFD and (b) allowable strength by ASD.

2. A W8x40 is used as a 12-ft column in a braced frame with Wl6x26 beams at the top and bottom as shown below. The columns above and below are also 12 ft, W8x40s. The beams provide moment restraint at each column end. Determine the effective length using the alignment chart and the available compressive strength, and the (a) design strength by LRFD and (b) allowable strength by ASD. Assume that the columns are oriented for (i) buckling about the weak axis and (ii) buckling about the strong axis. All steel is A992.

May 25 2020 View more View Less