2. A column is carrying an axial load W and an eccentric load P. If A is its cross-sectional area, ex and ey are the eccentricities and Pxx and Zyy the section modulli, the equivalent axial load is obtained from the formula,
6. If d is the diameter of column, D is the side of square base, W is total axial load and p is the allowable bending stress, the thickness (t) of the base plate, is