1. A beachfront house is to be jacked up 10 ft above grade and placed on a set of steel column. The weight to be supported by each column is estimated to be 200,000 lb. Can a hollow, round carbon steel column with 11-in outside diameter and 0.5-in wall thickness be used? The steel has a compressive yield stress 60 kpsi. Use a factor safety of 4. Assume the end condition is fixed-free.