United States Department of Transportation
i
Research on evaluation and standardization of accelerated bridge construction techniques, part II.
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2015-09-01
[PDF-7.57 MB]
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Abstract:The Michigan Department of Transportation (MDOT) uses Accelerated bridge construction
(ABC) to reduce delays and minimize construction impacts. MDOT contracted and completed
several bridges using prefabricated bridge elements and systems (PBES). In 2014, two slide-in
bridge construction (SIBC) projects were contracted and completed. These two projects
included three bridge replacements. Currently, self-propelled modular transporter (SPMT)
moves are being planned for three bridge replacement projects. This study goals are to advance
the implementations by expanding scoping guidelines to include all ABC alternatives,
standardize the bridge slides operations, and develop guidelines for foundation construction
while an existing bridge is in service. The tasks completed during this project include (a)
reviewing the ABC activities nationally and monitor ongoing ABC projects in Michigan, (b)
defining scoping parameters for the implementation of SIBC and SPMT moves, (c) reviewing
and evaluating substructure construction and upgrades, along with constructability of deep
foundations while an existing bridge is in service, (d) developing specific cost methodologies for
SIBC, SPMT moves, and foundation construction, and (e) developing recommendations for
updating the multi-criteria decision-making process and the associated software platform by
incorporating the updated framework and the cost-benefit analysis models, foundation
construction while an existing bridge is in service, and improving SIBC implementations.
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