...
Benchmark
...
problems
...
from
...
the
...
AISC
...
2017 Specification
...
for
...
Structural
...
Buildings
...
(commentary,
...
page
...
16.1-
...
291)
...
have
...
been
...
reproduced
...
in
...
ETABS
...
.
...
The
...
intention
...
of
...
AISC
...
benchmark
...
problems
...
is
...
to
...
indicate
...
whether
...
or
...
not
...
an
...
analysis
...
software
...
is
...
capable
...
of
...
performing
...
rigorous
...
second
...
order
...
analyses
...
which
...
include
...
P-Δ
...
and
...
P-δ
...
effect.
...
...
captures
...
both
...
sources
...
of
...
...
...
with
...
great
...
accuracy,
...
well
...
within
...
the
...
3%
...
and
...
5%
...
limitation
...
of
...
AISC.
...
This
...
capability
...
is
...
validated
...
in
...
the
...
benchmark-problem
...
results,
...
shown
...
below. Meshing the column may be required to improve accuracy of P-δ effect in pinned condition cases and for axial loads close to buckling.
Figure 1 - P-δ response
Figure 2 - P-Δ response
See Also
Attachments
- Case 1 ETABS model (zipped EBD file)
- Case 2 ETABS model (zipped EBD file)