APPLICABILITY OF CURVBRG GRIDWORK ANALYSIS TO CONTINUOUS, STEEL GIRDER BRIDGES. FINAL REPORT

Varying interpretations of very limited field testing suggested need for an expanded investigation of the range of applicability of the CURVBRG grillage analysis to slab and metal girder bridges. A significant body of literature was found to exist pertinent to field and model tests of such structures, with sufficient documentation to permit establishment of CURVBRG input and correlations between theoretical and measured data. Results of Caltrans field tests are published with studies of three Iowa and New York bridges. Spread sheet tabulations of measured and theoretical data comparisons are accompanied by plots of individual load cases and envelopes of parametric maxima. CURVBRG is shown to be as accurate for continuous as for simple span structures. Conservatism for loaded exterior girders is evident and becomes marked for three-girder structures. Program usage for rating, rehabilitation and design is advocated. Additional studies of other programs to improve correlations for bridges with three girders are recommended.

• Supplemental Notes:
  • This report is in three volumes: Volume 1, Main Text and Appendices A through D; Volume 2, Appendix E; and Volume 3, Appendix F
• Corporate Authors:

  California Department of Transportation

  Division of Structures Design, 1120 N Street
  Sacramento, CA  United States  95814

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Davis, R E
  • Rashedi, R
• Publication Date: 1985-7

Media Info

• Pagination: v.p.

Subject/Index Terms

• TRT Terms: Accuracy; Computer aided design; Computer programs; Continuous girder bridges; Design; Girder bridges; Grilles; Metal bridges; Steel bridges; Structural analysis
• Old TRIS Terms: Grillage design
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00457021
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: FHWA/CA/SD-85-06, 59313 624230
• Files: TRIS, USDOT, STATEDOT
• Created Date: Aug 27 2004 9:55PM