PCI eLearning Course T210: Introduction on Full-Depth Panel Precast Concrete Deck System and its Advantages-NUDECK Panel System for Nebraska's Skyline Bridge

NUDECK Panel System for Nebraska's Skyline Bridge

Pdf Summary

The NUDECK system, a full-depth precast/prestressed concrete bridge deck panel system, was developed by the University of Nebraska-Lincoln and implemented in the construction of the Skyline Bridge in Omaha, Nebraska. This system aims to address the cracking and deterioration issues commonly associated with cast-in-place concrete decks. The NUDECK system uses high-performance precast concrete and a combination of pretensioning and post-tensioning to ensure continued compression of the deck during its service life. This results in a low maintenance deck system suitable for both concrete and steel bridges, with reduced construction time and traffic disruption.<br /><br />The precast concrete panels for the bridge deck were produced at Concrete Industries, Inc. in Lincoln, Nebraska. The panels were reinforced with prestressing steel and mild steel reinforcing bars, and a unique detail was used to create a 2 percent crown in the panels. The panels were transported to the construction site in Omaha and set in place using a crane. Post-tensioning strands were then pulled through the channels in the panels, and the channels were grouted. A composite overlay was applied to the deck, and the bridge was completed in December 2003.<br /><br />The NUDECK system offers several advantages over traditional cast-in-place concrete decks, including faster construction time, reduced maintenance and replacement costs, and improved durability. The system has the potential to be used in new bridge construction or for the rehabilitation of existing bridges. The successful implementation of the NUDECK system in the Skyline Bridge demonstrates its feasibility and economic viability, and is a significant advancement in bridge deck technology.

Keywords

NUDECK system

precast/prestressed concrete

bridge deck panel

University of Nebraska-Lincoln

Skyline Bridge

cracking

cast-in-place concrete decks

low maintenance deck

reduced construction time

improved durability