$**$SHOW THE SOLUTION$**$

Situation $3$: The tension member shown is a

PL$12\mathrm{.}7$X$254$ plate of A$36$ steel. The bolts used

are A$325-$ M$22.$ Use $s_1=s_3=50\mathrm{.}8mm,s_2=$

$76\mathrm{.}2mm.$

Two $11\mathrm{.}1125mm$ E$70$ fillet welds are loaded

at their centroid and at $37$ degrees to the

weld length. The length of each weld is $300$

$mm.$ Determine the design strength $($LRFD$).$

a$.631kN$

c$.512kN$

b$.1263kN$

d$.1024kN$

Three $7\mathrm{.}9375mm$ fillet welds are grouped to

form a $C$ and are loaded at their centroid.

Determine the allowable weld strength if the

single transverse weld is $228\mathrm{.}6mm$ long and

the two longitudinal welds are each $76\mathrm{.}2mm$

long. Use E$70$ electrodes.

a$.331kN$

c$.309kN$

b$.343kN$

d$.384kN$