EFFECT OF STRATIGHTENING DAMAGED STEEL

The purpose of this report is to define a way of computing residual stresses. This is done for two cases in which steel members were bent by loads which caused yielding of some portion of the cross section. In the first case, a maximum residual stress of about 21 ksi was found in a w 33 x 200 when cambered to an extent permitted by the AISC Specification. In the second case, a maximum residual stress of about 14 ksi was found in a rectangular beam which had been bent to curvature three times the curvature at which yielding first occurred. Because of the relative magnitude of these residual stresses it seems that their calculation should be considered when uniform accidental bending of structural members occurs. These calculations should be of use to engineers in the application of specifications regarding the straightening of steel sections.

• Supplemental Notes:
  • Sponsored by the Joint Highway Research Advisory Council of the University of Connecticut and the Connecticut Department of Transportation.
• Corporate Authors:

  University of Connecticut, Storrs

  Department of Civil and Environmental Engineering, 261 Glenbrook Road
  Storrs, CT  United States  06269-2037
• Authors:
  • Johnston, E R
• Publication Date: 1976-4

Media Info

• Features: Figures; Tables;
• Pagination: 32 p.

Subject/Index Terms

• TRT Terms: Bending; Curvature; Loss and damage; Residual stress; Specifications; Steel; Straightening; Strength of materials
• Uncontrolled Terms: Strength development
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00149807
• Record Type: Publication
• Report/Paper Numbers: JHR 76-98 Proj. 66-1
• Files: TRIS
• Created Date: May 11 1977 12:00AM