LOCAL INSTABILITY OF HORIZONTALLY CURVED MEMBERS

AN ANALYTICAL STUDY OF THE ELASTIC BUCKLING BEHAVIOR OF THE FLANGES OF HORIZONTALLY CURVED I-SHAPED GIRDERS IS PRESENTED. THE PREBUCKLING FLANGE STRESSES IN THE LONGITUDINAL AND RADIAL DIRECTIONS DUE TO BENDING AND NONUNIFORM TORSION ARE DETERMINED USING AN ELASTICITY APPROACH. THE MAGNITUDES OF THESE STRESSES ARE COMPARED WITH THOSE RESULTING FROM A STRENGTH OF MATERIALS APPROACH. USING THESE STRESSES AND THE FINITE DIFFERENCE METHOD, BUCKLING COEFFICIENTS, K, ARE OBTAINED BY TREATING THE FLANGES OF THE GIRDER AS ELASTICALLY RESTRAINED CURVED PLATES. THE INFLUENCE OF CURVATURE AND THE RATIO OF BENDING STRESS TO WARPING NORMAL STRESS ON THESE BUCKLING COEFFICIENTS IS EVALUATED. THE BUCKLING COEFFICIENTS ARE COMPARED WITH THOSE FOR RECTANGULAR PLATES. WIDTH TO THICKNESS REQUIREMENTS BASED ON PREVENTING LOCAL BUCKLING IN THE ELASTIC RANGE ARE ALSO OBTAINED. /ASCE/

• Supplemental Notes:
  • Vol 96, No ST2, PROC PAPER 7079, PP 245-265, 9 FIG, 4 TAB,
• Authors:
  • Culver, C G
  • Frampton, R E
• Publication Date: 1970-2

Media Info

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

Subject/Index Terms

• TRT Terms: Alternatives analysis; Bending; Bending stress; Buckling; Curvature; Elastic analysis; Finite differences; Flanges; Girders; I beams; Instability; Strength of materials; Stresses; Structural analysis; Warpage
• Uncontrolled Terms: Horizontal curvature; Warping
• Old TRIS Terms: Elastic analysis (Structural)
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209167
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 25 1970 12:00AM