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Future of Rapid Bridge Deck Replacement
Replacing aging, deteriorated infrastructure often requires road closures and traffic detours which impose inconvenience and delay on commerce and members of the motoring public. Accelerated bridge construction techniques often use precast members to reduce the duration of construction and the resultant disruption to traffic patterns. This project considered various technical, safety, and economic challenges in the design and construction of a fullwidth precast concrete slab with a centerline crown. Torque verified leveling screws compensated for girder, deck panel prefabrication tolerances, and dead load deflections. In addition, the uniform-depth deck slab was cast by conventional per-stressing fabricators. The method to lift and transport the slabs was considered to prevent damage. Accelerated bridge construction is less expensive and bridge work can be completed and the bridge reopened to traffic within a matter of days versus months for conventional deck replacement.
Future of Rapid Bridge Deck Replacement
Replacing aging, deteriorated infrastructure often requires road closures and traffic detours which impose inconvenience and delay on commerce and members of the motoring public. Accelerated bridge construction techniques often use precast members to reduce the duration of construction and the resultant disruption to traffic patterns. This project considered various technical, safety, and economic challenges in the design and construction of a fullwidth precast concrete slab with a centerline crown. Torque verified leveling screws compensated for girder, deck panel prefabrication tolerances, and dead load deflections. In addition, the uniform-depth deck slab was cast by conventional per-stressing fabricators. The method to lift and transport the slabs was considered to prevent damage. Accelerated bridge construction is less expensive and bridge work can be completed and the bridge reopened to traffic within a matter of days versus months for conventional deck replacement.
Future of Rapid Bridge Deck Replacement
Allen A. (author) / Goodspeed C. (author)
2015
29 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Civil Engineering , Highway Engineering , Structural Analyses , Construction Materials, Components, & Equipment , Construction Management & Techniques , Materials Sciences , Civil, Construction, Structural, & Building Engineering , Transportation , Road Transportation , Transportation Safety , Transportation & Traffic Planning , Bridge deck , Precast concret , Accelerated bridge construction , Bridge (Structure) , Construction , Bridge modeling , Detours , Prestressed concrete bridges , Self compacting concrete , Safety , Girder bridge , Traffic patterns
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