INVESTIGATION AND ANALYSIS OF THE FRACTURED GIRDER IN BRIDGE NO. 9800, T.H. NO. 56 OVER MISSISSIPPI RIVER IN ST. PAUL, MINNESOTA

A detailed study of the fractured girder in Bridge 9800 (LaFayette Bridge) over the Mississippi River was made using material from the cracked girder. The results of the study indicate the fracture of a main girder of the LaFayette Street Bridge was due to the formation of a fatigue crack in the lateral bracing gusset to transverse stiffener weld.

• Corporate Authors:

  Minnesota Department of Highways

  Office of Bridges and Structures
  St Paul, MN  United States  55155
• Authors:
  • Fisher, J W
  • Pense, A W
  • Roberts, R
• Publication Date: 1975-10

Media Info

• Pagination: 58 p.

Subject/Index Terms

• TRT Terms: Analysis; Bracing; Failure; Fracture mechanics; Girder bridges; Girders; Highway bridges; Mechanical fatigue; Physical properties; Structural engineering; Transverse stiffeners
• Uncontrolled Terms: Fracture
• Geographic Terms: Minnesota; Mississippi River
• Old TRIS Terms: Analyzing
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00136992
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: MN-HW-5-380-75-1 Final Rpt.
• Files: NTIS, TRIS, STATEDOT
• Created Date: Aug 11 1976 12:00AM