Question 1:

Determine the LRFD design D. P. for the axially loaded

W12 x 106 column which has the bracing and end support

conditions as shown (the column is braced on its weak y axis

as shown in the figure). Fy = 50 ksi.

Solve:

a) Using Trial and error Procedure, i.e. Table 4-22;

b) Using LRFD Tables: i.e., Table 4-1.

28 ft

x-x axis

10 ft

18 ft

y-y axis