00611105

Component

http://onlinepubs.trb.org...trr/1991/1289/1289-003.pdf

https://scholar.google.co...edam&publication_year=1991

A versatile, dynamic buckling model that can be used on a personal computer is presented. The model accounts for vehicle load influences and nonlinearities in track resistance, hitherto ignored in the literature. These influences are shown to be important in the accurate predictions of buckling response and hence in buckling safety considerations. The model also computes the energy required to buckle the track and thus indicates the levels of safety at given rail temperatures. On the basis of the energy and the upper and lower buckling temperatures derived from the model, rational buckling safety criteria have been developed. Results of controlled full-scale dynamic buckling tests conducted on tangent 5-, and 7.5-degree continuous welded rail track are presented and correlated with theoretical predictions from the model on buckling temperatues, forces, and safety limits.

This paper appears in Transportation Research Record No. 1289, Lateral Track Stability 1991: Proceedings of a Conference, May 15-17, 1990, St. Louis, Missouri. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01411122

p. 23-38

1991

Transportation Research Record

Conference on Lateral Track Stability, 1990, St Louis, Missouri, USA

0309050685

Figures (18) ; Photos (4) ; References (14) ; Tables (1)

Buckling; Continuous welded rail; Correlation analysis; Forecasting; Mathematical models; Personal computers; Railroad tracks; Safety; Temperature; Theory

Data and Information Technology; Design; Highways; Railroads; Safety and Human Factors

TRIS, TRB

Jul 31 1991 12:00AM

• CONTINUOUS WELDED RAIL TRACK BUCKLING SAFETY ASSURANCE THROUGH FIELD MEASUREMENTS OF TRACK RESISTANCE AND RAIL FORCE
• EFFECTIVENESS OF SOUTHERN PACIFIC LINES IN CONTROLLING THE BEHAVIOR OF CONTINUOUS WELDED RAIL TRACK
• EFFECTIVENESS OF VARIOUS SCHEMES IN CONTROLLING THE BEHAVIOR OF CONTINUOUS WELDED RAIL
• LATERAL TRACK STABILITY: HOW SANTA FE RAILWAY ACHIEVES IT TODAY
• LATERAL TRACK STABILITY: THEORY AND PRACTICE IN JAPAN
• MAINTENANCE PROCEDURES FOR LATERAL TRACK STABILITY
• METHODS AND PROCEDURES FOR LAYING AND MAINTAINING CONTINUOUS WELDED RAIL TO ATTAIN LATERAL TRACK STABILITY
• RAILWAYS OF AUSTRALIA TRACK BUCKLING PROJECT
• THIRTY YEARS OF EXPERIENCE WITH CONTINUOUS WELDED RAIL ON THE FRENCH NATIONAL RAILROADS
• UNION PACIFIC'S APPROACH TO PRESERVING LATERAL TRACK STABILITY