Thin-Walled Structures,
Год журнала:
2024,
Номер
203, С. 112163 - 112163
Опубликована: Июнь 29, 2024
Pneumatic
structures
are
recognized
as
promising
thin-walled
for
their
advantageous
features
such
lightness,
portability,
versatile
design,
and
ease
of
installation.
Although
bearing
capacity
under
monotonic
static
loads
can
be
formidable,
inherent
dissipation
is
low
thus
entails
significant
limitations
when
counteracting
dynamic
loads.
A
novel
tensairity
structure
here
proposed
to
overcome
this
drawback.
The
innovative
design
a
cylindrical
inflatable
element
integrated
with
NiTiNOL
cables
wrapped
around
affixed
slender
beam
positioned
along
its
generatrix.
laboratory-scale
prototype
employed
assess
how
the
behaves
cyclic
loading
in
comparison
standalone
inflated
conventional
outfitted
steel
cables.
This
experimental
study
delves
into
influence
internal
pressure
pretension
levels
metallic
Experimental
results
unfold
smooth
softening-type
hysteretic
behavior
loading,
which
accompanied
by
slight
stiffness
degradation
moderate
pinching.
comparative
analysis
also
demonstrates
substantially
improved
consistent
presented
concept
structure,
offers
superior
stability
parametric
identification
based
on
modified
Bouc–Wen
model
finally
performed
simulate
response
structure.
correlation
established
between
identified
parameters
phenomenological
pressure,
type
levels.
excellent
agreement
numerical
predictions
force–displacement
cycles
other
than
those
used
suitability
adopted
modeling.
Engineering Structures,
Год журнала:
2024,
Номер
303, С. 117415 - 117415
Опубликована: Янв. 22, 2024
To
develop
low
carbon
footprint
concrete
(LCFC)
with
less
CO2
emissions,
various
minerals
(limestone,
metakaolin)
and
industrial
waste
by-product
(fly
ash
(FA),
silica
fume
(SF),
slag)
were
used
to
replace
cement
partially.
By
optimizing
the
packing
structure,
cost-effective,
sustainable
LCFC
superior
strength,
workability
durability
performances
could
be
achieved.
Research
studies
on
fiber-reinforced
polymer
(FRP)
confined
showed
that
peak
stress,
strain
at
stress
post-peak
branch
of
was
far
different
from
conventional
(with
as
cementitious
material
only)
same
strength
confinement
scheme.
look
this
problem
more
scientifically,
paper
conducted
experimental
analytical
about
stress-strain
curves
FRP-confined
LCFC.
A
total
45
column
specimens
consisting
15
unconfined
30
tested
under
uni-axial
compression.
The
studied
parameters
thickness
FRP,
water-
FA/SF-to-cementitious
ratios.
Based
test
results,
a
novel
packing-coupled
model
for
has
been
proposed
verified.
