Figure 10-5.End-to-end connections for P5M and P5F pontoons.
Structural steel ASSEMBLY ANGLES in varying
lengths are used to connect the P-series pontoons into
stings. Each is suitable for assembling a definite
number of pontoons and designated as E-series angles.
The angles are positioned to each of the four edges of
a row of pontoons. Various types of assembly angles
Figure 10-6.AII E516 assembly angle.
are available. Figure 10-6 shows an ES 16 assembly
angle. Figure 10-7 shows assembly angles E 16L and
Angles are supplied in several lengths, so strings
can be made up with a minimum number of welded
joints, and they are designed so these welds fall
midway along the edges of each pontoon, rather than
between pontoons where stress is greatest. Each angle
has one or two cross-sectional sizes, 6" x 6" x 1/2"
thick or 8" x 8" x 1/2" thick. Angles with 8" legs are
used to replace 6 x6 's at the center of strings 18 to 24
pontoons long, and strings of 30 pontoons have 8"
angles throughout to resist the extra stress that their
weight imposes. Regardless of dimensions, however,
each P-series angle falls into one of two types: basic
or end-condition angles. Basic angles are those angles
used throughout the body of a structure. Their
application is not restricted to top, bottom, left, or right
Figure 10-7.Assembly angles E 16L and E 26L.