THE SOLUTION OF CONTINUOUS ORTHOTROPIC PLATES ON FLEXIBLE SUPPORTS AS APPLIED TO BRIDGE STRUCTURES

TWO METHODS HAVE BEEN DEVELOPED FOR USE IN THE ANALYSIS AND DESIGN OF ORTHOTROPIC BRIDGES, THUS ENCOMPASSING ANY TYPE OF BRIDGE STRUCTURE. EACH METHOD SOLVES THE ORTHOTROPIC PARTIALADIFFERENTIAL PLATE EQUATION AND INCLUDES THE EFFECT OF FLEXIBLE SUPPORTING MEMBERS. THE FIRST METHOD UTILIZES THE SLOPE DEFLECTION TECHNIQUE, AND IS CONVENIENTLY SOLVED BY THE IBM 1620 COMPUTER. THE SECOND METHOD UTILIZES THE FINITE DIFFERENCE TECHNIQUE, AND MUST BE SOLVED BY THE IBM 7094 COMPUTER. IN COMPARING THERE, THE SLOPE DEFLECTION METHOD, IN CONJUNCTION WITH NAVIERS PLATE SOLUTION, PERMITS THE EVALUATION OF DEFLECTIONS AND MOMENTS ANYWHERE ON THE PLATE. THE FINITE DIFFERENCE METHOD, HOWEVER, WILL ONLY DETERMINE DEFLECTIONS AND MOMENTS AT THE POINT SELECTED FOR THE MESH. IN THE ORTHOTROPIC BRIDGE EXAMPLE, EACH METHOD WAS USED TO DETERMINE THE DEFLECTIONS AND MOMENTS THROUGHOUT THE STRUCTURE. A COMPARISON OF THE RESULTS BETWEEN EACH METHOD WAS MADE. THE MOST DIFFICULT PART OF THE ANALYSIS IS THE DETERMINATION OF THE STIFFNESS PARAMETERS H, DX AND DY. SEVERAL EQUATIONS ARE PRESENTED, AS DEVELOPED BY OTHERS, FOR THE DETERMINATION OF THESE PARAMETERS. /AUTHOR/

• Corporate Authors:

  University of Maryland, College Park

  Department of Civil and Environmental Engineering
  College Park, MD  United States  20742
• Authors:
  • Heins, C P
  • Looney, CTG
• Publication Date: 1966-9

Subject/Index Terms

• TRT Terms: Bridges; Continuous structures; Deflection; Design; Equations; Finite differences; Information processing; Orthotropic; Plate girders; Slopes; Stiffness
• Uncontrolled Terms: Parameters
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 00208262
• Record Type: Publication
• Report/Paper Numbers: 2 Vols
• Files: TRIS
• Created Date: Jun 22 1994 12:00AM