...
Pushover
...
is
...
a
...
static
...
-
...
...
analysis
...
method
...
where
...
a
...
structure
...
is
...
subjected
...
to
...
gravity
...
loading
...
and
...
a
...
monotonic
...
displacement-controlled
...
lateral
...
...
...
which
...
continuously
...
increases
...
through
...
elastic
...
and
...
inelastic
...
behavior
...
until
...
an
...
ultimate
...
condition
...
is
...
reached.
...
Lateral
...
load
...
may
...
represent
...
the
...
range
...
of
...
base
...
shear
...
induced
...
by
...
earthquake
...
loading,
...
and
...
its
...
configuration
...
may
...
be
...
proportional
...
to
...
the
...
distribution
...
of
...
...
along
...
building
...
height,
...
...
shapes,
...
or
...
another
...
practical
...
means.
...
Output
...
generates
...
a
...
static-pushover
...
curve
...
which
...
plots
...
a
...
strength-based
...
parameter
...
against
...
deflection.
...
For
...
example,
...
performance
...
may
...
relate
...
the
...
strength
...
level
...
achieved
...
in
...
certain
...
members
...
to
...
the
...
lateral
...
displacement
...
at
...
the
...
top
...
of
...
the
...
structure,
...
or
...
bending
...
moment
...
may
...
be
...
plotted
...
against
...
plastic
...
rotation.
...
Results
...
provide
...
insight
...
into
...
the
...
ductile
...
capacity
...
of
...
the
...
structural
...
system,
...
and
...
indicate
...
the
...
mechanism,
...
load
...
level,
...
and
...
deflection
...
at
...
which
...
failure
...
occurs.
...
When
...
analyzing
...
...
objects,
...
material
...
nonlinearity
...
is
...
assigned
...
to
...
discrete
...
...
locations
...
where
...
plastic
...
rotation
...
occurs
...
according
...
to
...
FEMA-356
...
or
...
another
...
set
...
of
...
code-based
...
or
...
user-defined
...
criteria.
...
Strength
...
drop,
...
displacement
...
control,
...
and
...
all
...
other
...
nonlinear
...
software
...
features,
...
including
...
...
assignment,
...
...
effect,
...
and
...
...
...
,
...
are
...
available
...
during
...
static-pushover
...
analysis.
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