Determine the design strength ${}_C.P_n$ and the allowable strength $\frac{P_n}{}$ for the bearing$-$type connection

shown in the figure. The steel is $A36(F_y=36$ksi and $F_u=58$ksi $).$ Bolts are $3/4-$inch in diameter using

A$325-$STD$-$ threads excluded. Deformations are a design consideration. The nominal shear strength of

bolts $F_n=68$ksi. Design for the bearing strength of bolts and the shearing strength of bolts only. The plates

are $\frac{1}{2}-$in$.$ thick each.

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