ANALYSIS OF CURVED GIRDER BRIDGES

THE FOURIER SERIES SLOPE-DEFLECTION METHOD WAS DEVELOPED AS A MEANS OF ANALYZING CURVED ORTHOTROPIC DECK BRIDGE SYSTEMS. BRIDGE DEFLECTIONS AND INTERNAL FORCES IN THE CURVED GIRDERS ARE DETERMINED AT ANY LOCATION ON THE SPAN. THE METHOD ALLOWS FOR THE INTERACTION OF THE CURVED ORTHOTROPIC OR ISOTROPIC PLATES WITH CURVED ELASTIC GIRDERS. ALL DEFLECTIONS, SLOPES AND INTERNAL FORCES, ARE ASSUMED AS FOURIER SERIES AND ARE THUS DETERMINED BY A TERM SOLUTION. EQUILIBRIUM EQUATIONS ARE DEVELOPED AT ALL GIRDER-PLATE JUNCTIONS AS THEY ARE AT MEMBER JOINTS IN THE RIGID FRAME SLOPE-DEFLECTION METHOD. THE ENTIRE SLOPE-DEFLECTION ANALYSIS HAS BEEN PROGRAMMED FOR USE ON AN IBM 7094 COMPUTER. THIS PROGRAM IS APPLIED TO AN EXISTING STRAIGHT BEAM AND A NUMBER OF HYPOTHETICAL CURVED BEAM SPANS. THE EFFECTS OF SLAB THICKNESS WARPING AND PURE TORSIONAL STIFFNESS, AND RADIUS OF CURVATURE ARE PRESENTED FOR A HYPOTHETICAL CURVED BRIDGE SYSTEM. /AUTHOR/

• Supplemental Notes:
  • Vol 96, No ST8, PROC PAPER 7462, PP 1657-1673
• Authors:
  • Bell, L C
  • Heins, C P
• Publication Date: 1970-8

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Analysis; Curvature; Curves (Geometry); Deflection; Fourier series; Girder bridges; Internal forces; Orthotropic; Plate girders; Radius; Slabs; Slopes; Stiffness; Warpage
• Uncontrolled Terms: Warping
• Old TRIS Terms: Radius of curvature
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209296
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 5 1970 12:00AM