United States Department of Transportation
i
Monitoring loading and environmental effects on bridge performance : research brief.
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2011-03-01
[PDF-666.83 KB]
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Abstract:A pilot project was initiated to assess the performance of the HPS bridge members as well as to evaluate
the response of the structure to actual traffic and environmental loads under in-service conditions
through monitoring of strain, temperature and displacement. Monitoring of an actual bridge provided
an opportunity to validate the laboratory values obtained in the earlier study and supply WisDOT with
additional tools to evaluate the specifications for design and construction of bridges using HPS. Both
AASHTO’s standard specifications for bridge design and the recently implemented Load and Resistance
Factor Design specifications, or LRFD, assume the use of non-HPS steels. This pilot project and
related research provided a case study to assess the impact on these design methods of using a material
with improved properties.
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