Second generation precast deck panel (NUDECK) system.

794925507Final report.PDFTech ReportConcrete bridgesPrecast concreteBridge decksBridge constructionNebraskaNebraska. Dept. of RoadsHanna, Kromel E.Morcous, GeorgeTadros, Maher K.University of Nebraska--Lincoln. Dept. of Civil EngineeringNebraska. Dept. of Roads. Bridge DivisionNTL-HIGHWAY/ROAD TRANSPORTATION-MaterialsNTL-HIGHWAY/ROAD TRANSPORTATION-Construction and MaintenanceNTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and PerformanceNTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and StructuresUS Transportation CollectionThe majority of today's bridge decks are built using cast-in-place concrete construction. This is due to the perceivedlow initial cost and constructor familiarity with the system. This research report describes the design, details, andconstruction of an innovative full-depth precast concrete bridge deck system \ue2\u20ac\u201c the Second Generation NUDECK(Nebraska University Deck). The quality of this system is far superior to cast-in-place construction. Cast-in-placeconcrete bridge decks experience cracking shortly after construction due to differential creep and shrinkage with thesupporting beams. This leads to bridge deck deterioration; a problem that is not experienced with the virtually crackfreeprestressed NUDECK made from high performance concrete. Rapid construction and minimizing the impact todrivers are two major demands toward our transportation industry. Precast bridge deck panels remove the constructionoperation from the jobsite and replace it with bridge deck installation. This eliminates the time spent on forming,concrete placing, and concrete curing. In addition, it increases worker and driver safety. Applications of this system totwo of Nebraska's bridges are presented in this report