EXPERIMENTAL STRESSES AND STRAINS FROM HEAT CURVING

TO OBTAIN INFORMATION ON THE HEAT CURVING PROCESS FOR THE FABRICATION OF HORIZONTALLY CURVED HIGHWAY BRIDGES, AN ANALYTICAL AND EXPERIMENTAL INVESTIGATION WAS CONDUCTED TO DETERMINE THE RESIDUAL STRESSES, STRAINS, AND CURVATURE IN A TYPICAL HEAT-CURVED GIRDER. THE ANALYTICAL RESULTS WERE REPORTED SEPARATELY. THE 52-FT-LONG TEST GIRDER WAS A TYPICAL WELDED, A36 STEEL, PLATE GIRDER. RESIDUAL STRESSES BEFORE HEAT CURVING WERE DETERMINED BY SECTIONING. THE REMAINING 46-FT-LONG GIRDER WAS CURVED TO A RADIUS OF 397 FT IN SIX SUCCESSIVE RUNS BY USING A CONTINUOUS HEAT-CURVING PROCESS. STRAINS AND TEMPERATURES WERE RECORDED DURING EACH RUN, AND THE RESIDUAL STRESS, STRAIN, AND AND CURVATURE AFTER EACH RUN WERE DETERMINED. BEHAVIOR OF THE GIRDER AGREED WITH THE ANALYTICAL INVESTIGATION WHEN COMPARED WITH THE EXPERIMENTAL VALUES, THE ANALYTICAL SOLUTION SATISFACTORILY PREDICTED THE RESIDUAL STRESSES BUT UNDERESTIMATED THE RESIDUAL CURVATURE. /ASCE/

• Supplemental Notes:
  • Vol 96, No ST 7, PROC PAPER 7400, PP 1305-1331, 18 FIG,
• Authors:
  • Brockenbrough, R L
  • Ives, K D
• Publication Date: 1970-7

Media Info

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

Subject/Index Terms

• TRT Terms: Curvature; Curved beams; Curves (Geometry); Girders; Heat; Highway bridges; Plate girders; Residual stress; Strain (Mechanics); Structural engineering; Temperature
• Uncontrolled Terms: Horizontal curvature
• Old TRIS Terms: Curved steel girders; Strains
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209254
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 26 1970 12:00AM