NONLINEAR ANALYSIS OF PRESTRESSED CONCRETE BOX GIRDER BRIDGES UNDER FLEXURE

One-seventh scale direct models of single-cell and 2-cell prestressed concrete box girder bridges, tested to destruction at McGill University, are analyzed by the nonlinear finite element technique. The nonlinear program NONLACS, utilized in the analysis, is described in detail together with the material models employed. The objective of the current study is to demonstrate the capabiliies of the finite element program NONLACS in predicting the ultimate strength and complete response of prestressed concrete box girder bridges at all stages of loading up to the ultimate load. The load-deflection curves, concrete and steel stresses, and deflected shapes of the bridges at different load levels are compared with the corresponding experimental data. The results verify the applicability of the nonlinear finite element method as an economical and expedient alternative, in some cases, to expensive experimental work aimed at the investigation of the complete response of complex structure to applied loads.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03151468
• Corporate Authors:

  National Research Council of Canada

  Research Journals
  Ottawa, Ontario K1A 0R6,   Canada 
• Authors:
  • Razaqpur, A G
  • Nofal, M
• Publication Date: 1989-12

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 845-853
• Serial:
  • Canadian Journal of Civil Engineering
  • Volume: 16
  • Issue Number: 6
  • Publisher: National Research Council of Canada
  • ISSN: 0315-1468
  • Serial URL: http://www.nrcresearchpress.com/loi/cjce

Subject/Index Terms

• TRT Terms: Box girders; Bridge design; Bridges; Concrete; Deflection; Finite element method; Flexure; Girder bridges; Loads; Nonlinear systems; Prestressed concrete; Structural analysis; Structural design
• Uncontrolled Terms: Nonlinearity
• Old TRIS Terms: Concrete box girders; Load deflection
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00492125
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Mar 31 1990 12:00AM