NUDECK - AN EFFICIENT AND ECONOMICAL PRECAST PRESTRESSED BRIDGE DECK SYSTEM

Stay-in-place (SIP) precast, prestressed concrete deck panels serve as permanent formwork and also house positive moment reinforcement. This paper presents an improved SIP precast, prestressed concrete panel system called the NUDECK. This system eliminates the major drawbacks of conventional SIP concrete precast panels while maintaining their structural and economic efficiencies. The system also reduces the time and labor required for installing a larger number of individual panels between girder lines. The proposed panel is unique in that it is continuous transversely and longitudinally, and it utilizes reinforcing bars without concrete to preserve the strand prestress across girder lines. No proprietary materials are used in producing these panels.