THE NEBRASKA HIGH PERFORMANCE STEEL TWO-BOX GIRDER SYSTEM

The Nebraska High Performance Steel (HPS) Two Box Girder project has been developed as a prototype structure for the replacement or new construction of typical grade separation bridges. These bridges represent a large market potential. The objectives for this prototype design are to simplify and accelerate construction, reduce cost, and increase life expectancy. This paper describes the prototype bridge design currently underway for a new two-span grade separation bridge near Omaha, Nebraska. The superstructure consists of twin box girders erected span-by-span without field splices. The design utilizes ASTM A709 HPS Grade 70W material. The deck is a full depth composite slab, precast, and posttensioned, designed for zero tension, with a wearing surface. Time dependent effects are fully accounted for. This paper describes the bridge analysis, design, and various constructibility issues. It is expected that the bridge will be constructed in 2002. Testing of various components will occur during design, and monitoring of the bridge performance will be provided in-service.

• Supplemental Notes:
  • Page range: 19-1 through 19-10.
• Corporate Authors:

  National Steel Bridge Alliance

  1405 North Lilac Drive, Suite 212
  Golden Valley, MN  United States  55422-4528
• Authors:
  • Price, K D
  • Cassity, P A
  • Azizinamini, Atorod
• Conference:
  • 2001 World Steel Bridge Symposium
  • Location: Chicago, Illinois
  • Date: 2001-10-2 to 2001-10-5
• Publication Date: 2001

Language

• English

Media Info

• Features: Figures; Photos;
• Pagination: 10p

Subject/Index Terms

• TRT Terms: Box girder bridges; Bridge decks; Bridge design; Bridge superstructures; Construction; Costs; Grade separations; Prototypes; Service life; Steel
• Uncontrolled Terms: High performance steel
• Geographic Terms: Omaha (Nebraska)
• Subject Areas: Bridges and other structures; Construction; Design; Finance; Highways; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00924149
• Record Type: Publication
• Files: TRIS
• Created Date: May 14 2002 12:00AM