Question: 1. Select the lightest standard-weight steel pipe section to support an axial compressive load of 100 kN. The column is pin-connected at each end and has an unbraced length of 5.50 m. Use F y =240 MPa.
2. Select the lightest W14 shape for a column subjected to an axial compressive load of 360 kips. The unbraced length of the column is 24 ft and the ends are pin-connected.