TESTING AND ANALYSIS OF A CURVED CONTINUOUS BOX GIRDER MODEL

The results obtained when four methods of analysis are applied to a curved, continuous, single cell box girder bridge model, are presented. The beam-on-elastic foundation method (modified for curvature) and the equivalent grid method, are essentially approximate solutions but are shown to be useful design aids despite some substantial discrepancies in soffit, tangential and radial stresses. The more exact finite strip and finite element procedures give excellent predictions for all stresses and deflections. The greatest errors occur under points of concentrated load where both methods require mesh refinement to improve accuracy. The finite strip method may also require additional harmonics in the load and stress series in some cases. Nevertheless it is concluded that the finite strip method is a very acceptable compromise between accuracy and economy of solution effort. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01110136
• Corporate Authors:

  University of Auckland

  Department of Civil Engineering, Private Bag
  Auckland 1,   New Zealand 
• Authors:
  • Buckle, I G
  • Hood, J A
• Publication Date: 1982-6

Media Info

• Features: Figures; References; Tables;
• Pagination: 34 p.
• Serial:
  • Publication of: Auckland University, New Zealand
  • Issue Number: 181
  • Publisher: University of Auckland
  • ISSN: 0111-0136

Subject/Index Terms

• TRT Terms: Box girders; Bridges; Continuous structures; Curved bridges; Deflection; Errors; Finite element method; Forecasting; Loads; Scale models; Stresses; Structural analysis; Structural models
• Old TRIS Terms: Finite elements; Strip
• ITRD Terms: 3474: Box girder; 3455: Bridge; 9006: Continuous; 3438: Curved bridge; 5586: Deflection; 6440: Error; 6490: Finite element method; 5567: Load; 6205: Model (not math); 5575: Stress (in material); 5573: Stress analysis
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00384548
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: May 30 1984 12:00AM