BRIDGE DIAPHRAGM ELEMENTS WITH PARTIAL WARPING RESTRAINT. TECHNICAL NOTE

In this technical note, the author examines the warping restraint of diaphragm elements in horizontally curved steel girder bridges. The warping restraint constant value differs for those diaphragms that are bolted to the main girder and those that are fully welded to the longitudinal girders. Previous studies indicate that welded diaphragms are significantly more effective in transverse load distribution than bolted diaphragms. Welded bridges were also shown to be stiffer and stronger. The author develops and presents a mathematical model for the boundary conditions to simulate welded and bolted diaphragm ends. Results reveal that boundary condition and length of diaphragm members influence torsional behavior.

Language

  • English

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Filing Info

  • Accession Number: 00670317
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 6 1994 12:00AM