A hollow circular pole, 6 m. thick, with 300 mm outside diameter and height of 3 m. weighs 150 N/m. The pole is subjected to the following vertical load P = 3 kN at an eccentricity, e = 100 mm. from the centroid of the section, lateral force H = 0.45 kN at the top of the pole.
? Determine the maximum compressive stress at the base due to the loads.
? Determine the maximum tensile stress at the base due to vertical and lateral loads.
? If the hollow pole is replaced by a solid wood pole of 250 mm Ø, determine the maximum shear stress at the base.
