HEAT-STRAIGHTENING PROTOTYPE DAMAGED BRIDGE GIRDERS

This paper reports a comprehensive testing program in which two beams were repetitively damaged and repaired using the heat-straightening process. The beams were supported in a frame to simulate a bridge girder-slab system. Ten different heating sequences were applied to plastically deformed areas of the damaged girders to study the effect of the external jacking forces and the heating patterns on the behavior of the heat-straightened members. It was found that there was a distinct advantage in applying an external jacking force to the heat-straightened girder. Increasing the jacking force increased the plastic rotation proportionally. Advantage is obtained by heating all of the plastically deformed zones in the girder.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Avent, R R
  • Fadous, G M
• Publication Date: 1989-7

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 1631-49
• Serial:
  • Journal of Structural Engineering
  • Volume: 115
  • Issue Number: 7
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9445
  • Serial URL: http://ascelibrary.org/loi/jsendh

Subject/Index Terms

• TRT Terms: Beams; Bridge members; Concrete tests; Deformation; Flexural strength; Girders; Heat; Loss and damage; Repairing; Straightening; Structural tests; Testing
• Uncontrolled Terms: Repairs
• Subject Areas: Bridges and other structures; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00486436
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Aug 31 1989 12:00AM