TIED ARCH REDECKING - ROCK ISLAND CENTENNIAL BRIDGE

The Centennial Bridge was open to traffic in 1940 as a toll bridge under the jurisdiction of the City of Rock Island. The 3850 foot structure is comprised of two viaduct approaches and five tied arch spans, in lengths of 540 feet and 396 feet, over the Mississippi River. In the later 1980s, the condition of the flooring system and the open drainage required repairs to insure the continued service of the structure. A lightweight sidewalk and redesign of portions of the structure were used to increase the load ratings and service life. Three dimensional modeling of the arch spans provided the forces, stresses and deflections that were necessary to design and rehabilitate the structure with the construction staging constraints. Increasing the load rating of the structure and maintaining traffic were the two major issues for implementation of the proposed improvements. Since the arch rib and tie have high dead load to live load ratios, the use of lighter weight materials for the deck and sidewalk elements were considered. The maintenance of traffic and asymmetric removal and replacement of the deck required several combinations of loading sequences and careful review of the deflections. A three dimensional computer model was chosen to provide the analysis and design for the arch spans rehabilitation.

• Corporate Authors:

  Iowa State University, Ames

  Department of Civil, Construction and Environmental Engineering
  Town Engineering Building
  Ames, IA  United States  50011-3232
• Authors:
  • Tessiatore, R
  • Nusekabel, K
• Conference:
  • Practical Solutions for Bridge Strengthening and Rehabilitation BSAR II
  • Location: Kansas City, Missouri
  • Date: 1997-3-24 to 1997-3-25
• Publication Date: 1997-3

Language

• English

Media Info

• Features: Figures; Tables;
• Pagination: p. 387-397

Subject/Index Terms

• TRT Terms: Arch bridges; Bridge decks; Live loads; Loads; Rehabilitation; Repairing; Tied concrete; Viaducts
• Geographic Terms: Illinois
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00802448
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 29 2000 12:00AM