STRESS ANALYSIS OF HAUNCH REGION IN A RIGID-FRAME BRIDGE

The primary purpose of this study was to develop an analytical model of the haunch region of a rigid-frame bridge, including the associated methodology for stress analysis, and to determine the magnitude and distribution of the stresses in a typical haunch configuration. A finite-element model was adopted for the haunch configuration, and loadings were determined from an analysis of the entire frame. Stresses and displacements throughout the haunch region were calculated for various live-load locations. The stresses in the web and flanges were compared with experimentally measured stresses available from a field test of the actual structure on which the analytical model was based. The comparison tended to validate the reliability of the model and method of analysis. Subsequent stress analyses were conducted to study the effect of including stiffeners in the haunch. The effects of web and flange thicknesses on the stress distribution in the haunch were also examined. Although only one bridge configuration and haunch geometry was considered, it is believed that the results of this study can be readily extrapolated to other haunch configurations in other rigid-frame bridges. /Author/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 19-26
  • Monograph Title: Bridge design, evaluation, and repair
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00195908
  • Record Type: Publication
  • ISBN: 0309028191
  • Files: TRIS, TRB
  • Created Date: Aug 15 1979 12:00AM