Buildings,
Journal Year:
2024,
Volume and Issue:
14(9), P. 2904 - 2904
Published: Sept. 14, 2024
Based
on
the
Guangzhou
Business
Center
project,
a
typical
super
high-rise
building
with
an
asymmetric
plan,
taking
construction
speed,
closure
time
of
mega
braces
and
belt
trusses
as
influencing
factors,
parametric
analysis
its
lateral
vertical
deformations,
well
maximum
stress
key
structural
members
was
conducted.
The
results
indicated
that
speed
had
relatively
small
impact
deformation
members.
However,
synchronous
truss
compared
delayed
would
result
in
smaller
horizontal
differences,
truss.
Meanwhile,
timing
little
influence
difference
And
earlier
closure,
drift
ratio,
greater
braces.
Further,
control
measurements
were
brought
forward.
On
one
hand,
FEM
simulation
carried
out
according
to
above
suggestions.
other
real-time
monitoring
also
used.
Finally,
by
comparing
both
results,
proposed
measures
methods
verified.
Abstract
Targeting
the
great
demand
for
adding
non‐structural
elevators
to
old
residential
buildings,
this
article
proposes
an
updated
configuration
of
tuned
mass
damper
inerter
(U‐TMDI)
applied
in
external
elevators.
An
analog
2‐DOF
system
is
established
describe
building
controlled
by
elevator.
Then,
three
closed‐form
optimal
solutions
designing
U‐TMDI
are
derived
via
fixed‐point
method,
equal
modal
damping
criterion,
and
infinity
assumption.
Subsequently,
these
compared
discussed
involving
expressions
tuning
frequency
ratio
parameters,
root
locus
diagram
supplemental
ratios,
transfer
function,
robustness
variation,
respectively.
Finally,
a
example
adopted
validate
feasibility
proposed
retrofitting
strategy
design
solutions.
It
demonstrated
that
ratios
method
criterion
different
due
influence
elevator
stiffness
,
while
its
degradation
forms
(TMD)
identical,
recognizing
importance
stiffness.
Moreover,
using
can
significantly
mitigate
main
structure
displacement
about
18%∼23%
both
far‐field
near‐fault
earthquakes.
Buildings,
Journal Year:
2025,
Volume and Issue:
15(3), P. 441 - 441
Published: Jan. 30, 2025
The
functionality
and
structural
safety
of
super
high–rise
buildings
are
significantly
challenged
during
seismic
events.
Although
conventional
damped
outrigger
(CDO)
systems
effectively
mitigate
seismic–induced
vibrations,
the
energy
dissipation
capacity
remains
inherently
limited.
An
inerter,
with
lightweight
tuning
capabilities
dynamic
negative
stiffness
characteristics,
can
enhance
efficiency
when
integrated
elements.
To
control
performance
this
study
proposes
a
multi–inerter–negative
(INSDO)
system
focuses
on
different
INSDO
combinations
to
improve
responses
buildings.
Taking
dual–outrigger
as
an
example,
systematically
compares
performances
five
configurations.
results
demonstrate
that
all
these
configurations
achieve
notable
damping
performances,
AND
combination
delivering
optimal
outcomes.
This
improvement
is
attributed
synergistic
interaction
between
inerter
elements,
which
enhances
damper’s
hysteretic
improves
its
capacity.
configuration
exceeds
single
by
71.37%.
