Question

You have a nominal 3.5-inch diameter tube steel pipe, 18 feet high that is embedded into a concrete foundation.  Neglecting the weight of the column, answer the questions below:

1. What is the maximum vertical load this pipe can support/critical load (lb)?

2. If a vertical load of 2,500 lbs and a horizontal force of 150 lbs are applied at the top of the column, what are the maximum combined tensile and compressive stresses (psi) where the column meets its foundation?  Are they allowable?

Answer 1