Effects of Retrofitting Applications on Reinforced Concrete Bridges

The objective of this research is to evaluate the effects of different retrofit applications on the global response of short-span reinforced concrete bridges. The global responses investigated include structural displacement and ductility. Modeling element characterizations that vary with the associated retrofit applications are taken as parameters in the sensitivity study. Retrofitting methods addressed in this study include steel jacketing of columns, foundation retrofit, and abutment retrofit. The corresponding parameters representing structural elements include various column-jacketing plans, linear foundation springs, and nonlinear abutment springs. A three-dimensional nonlinear finite-element model of the Dry Wash Bridge was developed and the results were used as the baseline in the parametric studies. A nonlinear modal pushover procedure was employed to perform the analyses in the longitudinal and transverse directions of the bridge. Results were analyzed by conducting a parametric study to evaluate the effects of different retrofit schemes on the bridge's global behavior.

• Record URL:
  http://www.ce.wsu.edu/TRAC/Publications_Reports/570.1%20Retrofitting%20Applications%20on%20Reinforced%20Concrete%20Bridges.doc
• Record URL:
  http://www.wsdot.wa.gov/research/reports/fullreports/570.1.pdf
• 
• Corporate Authors:

  Washington State Transportation Center

  Washington State Univ, Civil & Environmental Eng, Sloan Hall
  Pullman, WA  United States  99164

  Washington State Department of Transportation

  Transportation Building, 310 Maple Park Avenue SE, P.O. Box 47300
  Olympia, WA  United States  98504-7300

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Itani, Rafik
• Publication Date: 2003-8

Language

• English

Media Info

• Media Type: Print
• Edition: Research Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 84p

Subject/Index Terms

• TRT Terms: Bridge abutments; Bridge foundations; Columns; Ductility; Finite element method; Jacketing (Strengthening); Mathematical models; Reinforced concrete bridges; Retrofitting
• Uncontrolled Terms: Abutment springs; Foundation springs; Short span bridges; Structural displacement
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01001580
• Record Type: Publication
• Report/Paper Numbers: WA-RD 570.1
• Contract Numbers: T2696-02
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jul 5 2005 10:31AM