RESIDUAL DEFORMATION ANALYSIS FOR INELASTIC BRIDGE RATING

In this study a new method for inelastically rating steel girder highway bridges, RDA (residual deformation analysis), is presented. The method assesses the residual moments and deformations that are set up in a bridge beam that has been loaded into its inelastic resistance range. RDA combines classical elastic conjugatge beam theory with empirically formulated moment-versus-rotation relationships for both midspan inelastic positive moment and interior support inelastic negative moment hinging. RDA was used to rate an example bridge against an inelastic deflection limit to achieve a 17% load capacity increase above that given by the elastic strength limit. This was sufficient to prevent posting of the structure.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Dishongh, B E
  • Galambos, T V
• Publication Date: 1992-6

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 1494-08
• Serial:
  • Journal of Structural Engineering
  • Volume: 118
  • Issue Number: 6
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridges; Deformation; Inelastic stress; Ratings; Structural analysis
• Uncontrolled Terms: Inelastic action
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00622586
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Jun 30 1992 12:00AM