NATURAL FREQUENCY OF RAILWAY GIRDER BRIDGES UNDER VEHICLE LOADS
To investigate the natural frequency of a railway girder bridge under vehicle loads, two methods are presented. First, the natural frequency of a railway girder bridge under vehicle loads is obtained by solution of the eigenvalue of the vehicle-bridge interaction equation at each step of the numerical integration. Second, based on the vehicle-bridge interaction equation, an approximate formula is developed. The results show that the natural frequency of a railway girder bridge under vehicle loads varies periodically as the vehicles pass over the bridge. The results obtained with the two methods are then compared, showing that a good agreement is achieved. From parametric studies, the effects of the unsprung mass, the sprung mass, and the stiffness of the vehicle suspension are discussed.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Li, Jian
- Su, M
- Fan, L
- Publication Date: 2003-7
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 199-203
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Serial:
- Journal of Bridge Engineering
- Volume: 8
- Issue Number: 4
- Publisher: American Society of Civil Engineers
- ISSN: 1084-0702
- Serial URL: http://ojps.aip.org/beo
Subject/Index Terms
- TRT Terms: Bridge engineering; Dynamic loads; Girder bridges; Natural frequency; Numerical integration; Parametric analysis; Railroad bridges; Stiffness; Suspension systems; Traffic loads
- Subject Areas: Bridges and other structures; Data and Information Technology; Design; Freight Transportation; Highways; Materials; Railroads; Vehicles and Equipment; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00960740
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 3 2003 12:00AM