October 18, 2018
|
RISA-3D,
New,
Wood
With
the
initial
implementation
of
wood
wall
design
in
RISA-3D,
the
wall
aspect
ratio
was
calculated
as
the
full
height
of
the
wall
divided
by
the
width
of
the
region.This
was
intended
to
accommodate
balloon
framed
multi-story
walls
that
were
drawn
as
one
continuous
wall
stack.
With
recent
publications
of
the
ANSI/AWC
SDPWS,
it
has
been
made
clear
that
the
aspect
ratio
should
rather
be
taken
on
a
floor-by-floor
basis.
In
RISA-3D
v17.0,
the
aspect
ratio
for
walls
will
now
be
calculated
based
on
the
individual
regions
height.
The
below
example
shows
the
differences
between
the
wall
height
and
region
height
of
a
multi-story
wall…