$8\mathrm{.}2-6$ The load on the bracket plate consists of a service dead load of $20$ kips and a service live load of $35$ kips. What diameter Group A bearing$-$type bolt is required? Use an elastic analysis and assume that the bearing strengths of the bracket and the column flange are adequate.

a$.$ Use LRFD$.$

b$.$ Use ASD.

FIGURE P$8\mathrm{.}2-6$