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Forces in wingwalls from thermal expansion of skewed semi-integral bridges : final report
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Forces in wingwalls from thermal expansion of skewed semi-integral bridges : final report
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Forces in wingwalls from thermal expansion of skewed semi-integral bridges : final report
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Description
Title
Forces
in
wingwalls
from
thermal
expansion
of
skewed
semi-integral
bridges
:
final
report
Subject
Semi-integral
bridge
;
Skewed
bridge
;
Wingwall
;
Thermal
expansion
;
Bridge
rotation
;
Bridge
diaphragm
;
TE215.S714
2010
;
Bridges--Ohio--Design
and
construction.
;
Strains
and
stresses.
;
OTP
1.23/7:2010-16
Description
"
November
,
2010.
"; "
FHWA/OH-2010/16--Technical
rept
.
documentation
p.
;
Includes
bibliographical
references
(p
.
86-87).
;
Sponsored
by
Ohio
Dept
. of
Transportation
;
State
job
no.
:
134267
;
Harvested
from the
web
on
1/26/11
Creator
Steinberg
,
Eric
P
.
Publisher
Ohio
Dept
. of
Transportation
,
Research
&
Development
;
Available
through
the
National
Technical
Information
Service
Contributors
Sargand
,
S
.
M
.
(Shad
M.)
;
Ohio
.
Dept
. of
Transportation.
;
United
States
.
Dept
. of
Transportation.
;
United
States
.
Federal
Highway
Administration.
;
Ohio
Research
Institute
for
Transportation
and the
Environment
.
Type
Text
Language
eng
Relation
Also
available
online.
;
http://www.dot.state.oh.us/Divisions/TransSysDev/Research/reportsandplans/Reports/2010/Structures/134267-FR.pdf;
http://worldcat.org/oclc/698370115/viewonline
Description-Abstract
Jointless
bridges
,
such
as
semi-integral
and
integral
bridges
, have
become
more
popular
in
recent
years
because
of their
simplicity
in the
construction
and the
elimination
of
high
costs
related
to
joint
maintenance
.
Prior
research
has
shown
that
skewed
semi-integral
bridges
tend
to
expand
and
rotate
as the
ambient
air
temperature
increases
through
the
season
. As a
result
of the
bridge
movement
,
forces
are
generated
and
transferred
to the
wingwalls
of the
bridge
.
ODOT
does
not
currently
have a
procedure
to
determine
the
forces
generated
in the
wingwalls
from the
thermal
expansion
and
rotation
of
skewed
semi-integral
bridges
. In this
study
,
two
semi-integral
bridges
with
skews
were
instrumented
and
monitored
for
behavior
at the
interface
of the
bridge's
diaphragm
and
wingwall
. A
parametric
analysis
was also
performed
to
determine
the
effects
of
different
spans
and
bridge
lengths
on he
magnitude
of the
forces
.
Based
on the
field
results
from the
study
it
is
recommended
for the
design
of the
wingwalls
turned
to
run
nearly
parallel
with the
longitudinal
axis
of
skewed
semi-integral
bridges
should
include
a
100
psi
loading
at the
wingwall/diaphragm
interface
from the
thermal
expansion
of the
bridge
. In
addition
,
analytical
evaluations
showed
that
longer
spans
and
higher
skews
than
allowed
by
ODOT's
BDM
could
be
used
.
However
,
additional
considerations
for
larger
movements
and
stresses
generated
at the
wingwall/diaphragm
interface
would
need
to be
considered
in
designs
.
Finally
,
bearing
retainers
in
diaphragms
, if
used
,
require
adequate
cover
to
avoid
spalling
of
concrete
.
Date-Issued
[2010]
Format-Extent
87
p
. :
ill
.
(some
col.)
;
28
cm
.
Format-Medium
Government
Publication
OCLC number
698370115
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