Problem $1$

A$)$ The $\frac{3}{4}$ in $x15$ in plate has $4$ rows $($or horizontal lines$)$ of bolts. Each row has $3$ bolts.

The bolt diameter is $\frac{7}{8}$ in$.$ Determine the gross area $($Ag$)$ and the net area $($An$)$

B$)$ The L$64\frac{1}{2}$ single angle shown has two rows of bolts. Each leg has one row $($one

line$)$ of $\frac{5}{8}$ in $$ bolts in each leg as shown. Determine the net area $($An$)$

$164\frac{1}{2}$

$\frac{5}{8}"$ diameter balt

Section

C$)$ The W$24$x$76$ beam has holes for $11/2$ in $$ diameter bolts in the top and bottom flanges

as shown. Determine the net area $($An$)$ at section A$-$A$.$