November 15, 2017
|
RISAFloor ES,
Loads,
RISAFloor,
New,
Skip Loading
Basic
Description
Pattern
based
skip
loading
has
recently
been
added
into
RISAFloor
beam
design.
This
can
be
turned
on
or
off
using
the
checkbox
in
the
Solution
tab
of
the
(Global)
Model
Settings
shown
below.
This
new
feature
applies
to
continuous
beams
that
span
over
multiple
supports.
The
various
types
of
live
loading
will
be
included
or
excluded
per
span
in
various
patterns
in
an
effort
to
produce
the
worst
case
shear,
moment
and
reactions.
This
complies
with
the
“Partial
Loading”
requirements
of
ASCE
7-10/16
Section
4.3.3.
Load
Patterns
Utilized
The
various
live
load
patterns
used
for
skip
loading
are
shown
in
the
images
/
patterns
shown
below.
Pattern
A:
Full
Load
on
Beam
Pattern
B:
Intended
to
produce
the
maximum
positive
moments
for
center
span
(and
every
other
odd
span)
Pattern
C:
Intended
to
produce
the
maximum
negative
moment
for
cantilevers
and/or
maximum
positive
moment
on
the
off-center
span
beams
(and
ever
other
even
span
beam).
Pattern
D:
Two
adjacent
bays
loaded
with
one
bay
skipped
in
between.
This
is
intended
to
produce
the
maximum
reaction
for
the
first
interior
supports.
Pattern
E:
Two
adjacent
bays
loaded
with
one
bay
skipped
in
between.
This
is
intended
to
produce
the…
