TIME-DEPENDENT BEHAVIOR OF SEGMENTAL CANTILEVER CONCRETE BRIDGES

Three segments of the Kishwaukee River Bridge were instrumented to measure concrete strains, temperatures, and vertical bridge deflectiosn for a period of five years. Simultaneously, tests to measure short-term and long-term physical properties of concrete used in the bridge segments were performed. Using the measured concrete properties and the detailed construction records, time-dependent deformations of the instrumented bridge segments were calculated by a computer program using a step-by-step numerical procedure. Comparisons were made between measured and calculated values. Comparisons of the measured and calculated results verified numerical procedure for calculating long-term behavior of segmental box-girder bridges. Using the numerical procedure, effects of time-dependent behavior of conncrete on axial deformations, prestress losses, moment redistribution, and concrete stresses on continuous box girders were investigated. Influence of concrete ages at times of erection on bridge behavior was discussed. (FHWA)

• Corporate Authors:

  Portland Cement Association

  5420 Old Orchard Road
  Skokie, IL  United States  60077

  Illinois Department of Transportation

  Bureau of Materials and Physical Research
  126 East Ash Street
  Springfield, IL  United States  62704-4766

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Shiv, K-N
  • Daniel, J I
  • Russell, H G
• Publication Date: 1983-3

Media Info

• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Box girders; Cantilevers; Concrete; Concrete bridges; Deflection; Deformation; Engineering moments; Measurement; Physical properties; Prestressing; Segmental construction; Strain (Mechanics); Structural analysis; Structural mechanics; Temperature; Time dependence
• Uncontrolled Terms: Concrete properties; Moment distribution; Prestress loss; Structural behavior
• Old TRIS Terms: Strains; Time dependent parameters
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00389034
• Record Type: Publication
• Report/Paper Numbers: FHWA-IL-PCA-001 Final Rpt.
• Contract Numbers: IHR-307
• Files: TRIS, USDOT, STATEDOT
• Created Date: Oct 30 1984 12:00AM