PCI eLearning Course T220: Production and Construction Details of Full-Depth Precast Concrete Deck Panels-NUDECK Panel System for Nebraska's Skyline Bridge

NUDECK Panel System for Nebraska's Skyline Bridge

Pdf Summary

The article discusses the NUDECK system, a full-depth precast/prestressed concrete bridge deck panel system developed by the University of Nebraska-Lincoln. The system aims to address the cracking and deterioration of concrete decks that is commonly found in stringer type bridges on U.S. roadways. The NUDECK system utilizes high-performance precast concrete that has little creep and shrinkage after the deck is made composite with the girders. The deck panels are pretensioned in the transverse direction and post-tensioned in the longitudinal direction, ensuring continued compression of the deck during its service life. This system can be used for both concrete and steel bridges, resulting in reduced construction time and traffic disruption. <br /><br />The article also highlights the poor condition of many stringer type bridges on U.S. roadways, which is often caused by the cracking and deterioration of concrete decks. CIP (cast-in-place) reinforced concrete decks are commonly used in bridge construction, but they can have drawbacks such as low construction speed, the need for strict field quality control, and cracking due to shrinkage and creep. Many CIP decks require major repair or replacement within 15 to 25 years of construction, while the bridge beams remain structurally sound. The NUDECK system offers a cost-effective and efficient solution for bridge deck replacement and repair programs, providing a durable and easy-to-install solution that minimizes traffic disruptions and reduces long-term maintenance costs.

Keywords

NUDECK system

precast/prestressed concrete

bridge deck panel

University of Nebraska-Lincoln

cracking and deterioration

stringer type bridges

high-performance precast concrete

transverse direction

post-tensioned

reduced construction time