RATING OF STEEL RAILWAY BRIDGES
A riveted steel truss bridge on the Union Pacific Railroad in Nevada was considered for load rating and estimation of remaining fatigue life. An Association of American Railroads (AAR) computer program was modified to rate bridges under any type of loading and to save member load time histories caused by the passage of trains. A model based on Miner's rule and stress category D for riveted connections was chosen to estimate the remaining fatigue life. Stress values in five members of the bridge exceeded the endurance limit under train loading; life of these critical members will be reduced due to the proposed increase in the train traffic.
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Corporate Authors:
University of Nevada, Reno
Department of Civil Engineering
Reno, NV United States 89557 -
Authors:
- Ebrahimpour, A
- Maragakis, E
- O'Connor, D
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Conference:
- Second Workshop on Bridge Engineering Research in Progress, Proceedings
- Location: Reno, Nevada
- Date: 1990-10-29 to 1990-10-30
- Publication Date: 1990
Language
- English
Media Info
- Features: Figures; References;
- Pagination: p. 63-66
Subject/Index Terms
- TRT Terms: Bridge engineering; Fatigue strength; Load tests; Railroad bridges; Steel by end use; Stress ratio; Truss bridges
- Identifier Terms: Association of American Railroads; Union Pacific Railroad
- Subject Areas: Bridges and other structures; Design; Highways; Railroads; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00799217
- Record Type: Publication
- Files: TRIS
- Created Date: Sep 19 2000 12:00AM