AN INVESTIGATION OF THE ESTIMATED FATIGUE DAMAGE IN MEMBERS OF THE 380-FT MAIN SPAN, FRASER RIVER BRIDGE
This paper uses the load spectrum defined by checks of past traffic and for future traffic based on marketing projections to evaluate the fatigue life of a bridge already over 70 years old. The Canadian National bridge near Vancouver, B.C., was built in 1904 of a weak design initially, and is today subjected to heavy unit train loads. Fatigue cracks can grow from riveted connections or other structural details such as pin plates and weldments. Strain gauge tests of certain bridge members were used to define the fatigue life of the hangers and stringers. Care in interpreting results and cautions about using field measurements are indicated.
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Supplemental Notes:
- Presented at the 75th Technical Conference, AREA, Chicago, Illinois, 22-24 March 1976. See also The Load Spectrum for the Fraser River Bridge at New Westminster, B.C., RRIS 00 139942.
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Corporate Authors:
American Railway Engineering Association
59 East Van Buren Street
Chicago, IL United States 60605 -
Authors:
- Fisher, J W
- Daniels, J H
- Conference:
- Publication Date: 1976
Media Info
- Features: Figures; References;
- Pagination: p. 577-597
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Serial:
- Volume: 77
Subject/Index Terms
- TRT Terms: Axle load force; Bridge members; Bridges; Length; Life cycle analysis; Loss and damage; Mechanical fatigue; Metal bridges; Safety; Steel bridges; Stresses; Structural analysis; Structural supports; Traffic; Truss bridges
- Identifier Terms: Canadian National; Canadian National Railways
- Uncontrolled Terms: Bridge spans; Bridge structures; Fatigue analysis; Fatigue life; Hangers
- Old TRIS Terms: Bridge stresses; High axle loads
- Subject Areas: Bridges and other structures; Highways; Operations and Traffic Management; Safety and Human Factors;
Filing Info
- Accession Number: 00139943
- Record Type: Publication
- Report/Paper Numbers: Bulletin 658 Proceeding
- Files: TRIS
- Created Date: Oct 26 1976 12:00AM