The top chord also has specification IL 4 x 3 x 3/8
x 7(e). This means it has five clip angles attached, and
each of them is an angle 4 inches by 3 inches by 3/8 inch
thick and 7 inches in length.
The gusset plate (a) on the lower left of the view is
labeled PL 8 x 3/8 x 1´-5
(a). That means it is 8 inches
at its widest point, 3/8 inch thick, 1 foot 5 inches long at
its longest point.
The bottom chord is made up of two angles 2 1/2 x
2 x 5/16 x 10´-3 7/16
,
which are connected to gusset
plates a and b, and two more angles 2 1/2 x 2 x 1/4 x
10´-4 1/8
,
which are connected to gusset plate b and
continue to the other half of the truss. Two more angles
are connected to gusset plates c and b on the top and
bottom chords; they are 2 1/2 x 2 x 1/4 x 2´- 10 1/2
.
The
other member between the top and bottom chords,
connected to gusset plate b and the purlin gusset d, is
made up of two angles 2 1/2 x 2 x 1/4 x 8´-5
.
View A also shows that most of the rivets will be
driven in the shop with the exception of five rivets in the
purlin gusset plate d and the two rivets shown
connecting the center portion of the bottom chord,
which is connected to gusset plate b. These seven rivets
will be driven at the jobsite. Figure 7-8 shows
Figure 7-8.—Riveting symbols.
7-9
