Question: 1. Calculate the Euler buckling load for a pin-connected steel pipe column. Use A=8.4 in . 2 , r=2.94 in., and the following lengths:
(a) 50 ft,
(b) 35 ft,
(c) 20 ft, and
(d) 15 ft.
The proportional limit is 34,000 psi.
2. Plot a curve showing the relationship of f versus L/r for steel columns. Draw the curve for slenderness ratios that vary from 0 to 200. Assume the proportional limit =235 MPa.