United States Department of Transportation
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Prefabricated/Precast Bridge Elements and Systems (PBES) for Off-System Bridges
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2012-08-01
[PDF-3.09 MB]
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Edition:Final report; Mar. 2011-Aug. 2012.
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Abstract:The
Federal
Highway
Administration’s
(FHWA)
“Every
Day
Counts”
initiative
aims
to
shorten
the
overall
project
delivery
time,
enhance
safety,
and
protect
the
environment
both
on
and
around
construction
projects.
Using
innovative
planning,
design,
and
construction
methods,
Accelerated
Bridge
Construction
(ABC)
techniques
reduce
on-‐site
construction
time
for
new
or
replacement
bridges.
One
aspect
of
ABC
is
Prefabricated
Bridge
Elements
and
Systems
(PBES),
where
bridge
components
are
fabricated
off
site
to
reduce
on-‐site
construction
activities.
Many
state
departments
of
transportation
(DOTs)
are
currently
making
efforts
to
implement
PBES
for
construction
of
their
off-‐system
bridges.
The
purpose
of
this
research
project
was
to
investigate
other
states’
standards
and
to
evaluate
them
for
possible
implementation
in
Florida.
An
exhaustive
search
was
made,
and
new
literature
was
reviewed,
to
learn
about
current
DOT
standards
and
practices.
The
search
revealed
that
the
states
with
the
most
prefabricated
bridge
standards
or
activities
are
as
follows:
Utah,
Alabama,
Texas,
Minnesota,
and
a
collaboration
of
Northeastern
states.
These
standards
were
reviewed
for
details
such
as
the
presence
of
post-‐tensioning,
joint
types,
design
load,
and
inspectability.
The
two
standard
bridge
types
that
show
the
most
promise
for
adoption
by
Florida
Department
of
Transportation
(FDOT)
are
Minnesota‘s
Inverted-‐tee
Beam,
and
PCI’s
“Northeastern
Extreme
Tee”
(NEXT)
Beam.
A
summary
of
the
findings,
including
advantages
and
disadvantages
of
the
bridge
systems,
is
included
in
this
report.
Also
included
is
a
comprehensive
list
of
Web
links
to
standard
drawings
from
all
state
DOTs,
as
well
as
more
information
on
ABC
and
PBES,
which
could
also
be
helpful
to
expedite
other
research
that
involves
standards
and
bridge
construction/design
practices.
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Format:
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File Type:
Supporting Files
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No Additional Files
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