...
For
...
moment
...
and
...
shear
...
diagrams,
...
Software
...
calculates
...
exact
...
response
...
values
...
only
...
at
...
output-station
...
locations.
...
Linear
...
interpolation
...
is
...
then
...
used
...
to
...
plot
...
response
...
between
...
output
...
stations.
...
Users
...
who
...
wish
...
to
...
obtain
...
exact
...
numerical
...
values
...
for
...
the
...
response
...
at
...
points
...
other
...
than
...
output
...
stations
...
may
...
do
...
so
...
using
...
the
...
Diagrams
...
for
...
Frame
...
Objects
...
menu.
...
Consider
...
the
...
example
...
of
...
9m-long
...
simply
...
supported
...
girder
...
loaded
...
with
...
a
...
1kN/m
...
uniformly-distributed
...
load.
...
When
...
moment
...
diagrams
...
are
...
plotted
...
for
...
the
...
same
...
object
...
and
...
loading
...
conditions,
...
except
...
with
...
variable
...
output-station
...
spacing
...
(4.5m,
...
3m,
...
and
...
0.9m),
...
results
...
are
...
as
...
shown
...
in
...
Figure
...
1:
A parabola represents the true moment diagram which results from a uniformly distributed load. Depending on the number of output stations, Software approximates this shape with a series of linear segments. It is most accurate and practical to use a sufficient number of output stations. Ten output stations per span should suffice.