FORT DUQUESNE BRIDGE: FRACTURE ANALYSIS OF FLANGE CORES

Tests were run on cores removed from bent SB3 of the Fort Duquesne Bridge. Metallographic examination of cores taken through the welds connecting the girder flange plate with column flange plates indicated that cracking was associated with repair welding. Fracture toughness tests and V-notch Charpy impact tests were run on 2.5 inch thick A517 steel flange plate material. The fracture toughness tests did not give valid K Sub Ic (1 sec) measurements at -30 F, but they do provide some information on the fracture behavior of the material. Z-direction tensile tests on flange plate material showed low ductility.

• Corporate Authors:

  Materials Research Laboratory Incorporated

  One Science Road
  Glenwood, IL  United States  60425

  Federal Highway Administration

  Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
  McLean, VA  United States  22101
• Authors:
  • CROSLEY, P B
• Publication Date: 1984-12

Media Info

• Features: Appendices; Figures; Tables;
• Pagination: 65 p.

Subject/Index Terms

• TRT Terms: Analysis; Bridges; Core samples; Ductility; Flanges; Fracture mechanics; Metallography; Repairing; Tension tests; Testing; Toughness; Welding
• Uncontrolled Terms: Repairs
• Old TRIS Terms: Cores; Tensile test
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Maintenance and Preservation; Materials; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00393975
• Record Type: Publication
• Report/Paper Numbers: FHWA-TS-84-210 Final Rpt., FCP 35Z K028
• Contract Numbers: DTFH61-83-C-00102
• Files: TRIS, USDOT
• Created Date: Jul 31 1985 12:00AM