Evaluation of the composite wing girder bridge at Bear Creek.
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1984-11-01
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Abstract:This report documents the construction monitoring and subsequent field testing
to evaluate the performance of an innovative nloose-fit" composite post-tensioned
concrete wing girder bridge constructed over Bear Creek, south of Austin, Texas.
The structure was built as a trial evaluation of an early proposed design for an
elevated interstate highway expansion.
Monitoring of the bridge was carried out both during critical construction
steps and by truck testing after completion. Results of both construction measurements
and service load level loading tests were compared to analytical predictions.
Recommendations for improvement of the present design with regards to both constructability
and structural performance are made. The suggested revisions should
result in both easier and quicker construction with improved appearance and durability
at a reduced cost.
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