THE ANALYSIS OF CURVED ORTHOTROPIC HIGHWAY BRIDGES BY THE FINITE DIFFERENCE TECHNIQUE THE DESIGN OF CURVED VIADUCTS AND SPIRAL APPROACHES TO INTERSECTIONS

A METHOD IS PRESENTED TO DETERMINE THE DEFLECTIONS AND MOMENTS THROUGHOUT A CURVED A SLAB AND GIRDER BRIDGE, CONSIDERING FULL STRUCTURAL CONTINUITY OF THE SYSTEM. THE SLAB EQUATIONS EMPLOYED CONSISTED OF THOSE WHICH WILL ALLOW FOR SLAB STIFFNESS VARIATIONS AT RIGHT ANGLES. COMMONLY KNOWN AS ORTHOTROPIC SLABS. THIS VARIATION ALLOWS FOR THE INCLUSION OF A SLAB GIRDERS SYSTEM. CREATING AN EQUIVALENT ORTHOTROPIC SLAB. FROM THE EVALUATION OF DATA GIVEN FOR AN EXAMPLE BRIDGE AND REINSPECTION OF DEVELOPED EQUATIONS, IT IS RECOMMENDED THAT A BRIDGE SYSTEM BE ANALYZED OR INITIALLY DESIGNED BY USE OF AN EQUIVALENT ORTHOTROPIC SLAB. THE RESULTING DEFLECTIONS MAY THEN BE USED FOR THE EVALUATION OF MOMENTS THROUGHOUT THE SYSTEM. A CURVED STRUCTURAL BRIDGE MODEL WAS FABRICATED AND IS BEING TESTED TO VERIFY THIS THEORETICAL TECHNIQUE.

• Supplemental Notes:
  • Progress RePT, 155 PP, 58 FIG, 10 REF, 2 APP
• Corporate Authors:

  University of Maryland, College Park

  Department of Agricultural and Resource Economics
  College Park, MD  United States  20742
• Authors:
  • Heins, C P
  • Looney, C T
• Publication Date: 1967-1

Subject/Index Terms

• TRT Terms: Curves (Geometry); Deflection; Engineering moments; Finite differences; Girder bridges; Girders; Highway bridges; Orthotropic; Slabs; Structural analysis
• Uncontrolled Terms: Model tests
• Old TRIS Terms: Curved steel girders; Moments
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208340
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 5 1994 12:00AM