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Track buckling prevention : theory, safety, concepts, and applications

Author: Andrew Kish; G Samavedam; United States. Federal Railroad Administration. Office of Research and Development,; John A. Volpe National Transportation Systems Center (U.S.); Foster-Miller.
Publisher: Washington, D.C. : U.S. Department of Transportation, Federal Railroad Administration, Office of Research and Development, Springfield, VA : This document is available to the public through the National Technical Information Service, March 2013. [2013].
Edition/Format:   eBook : Document : National government publication : English
Summary:
"Abstract: This report is part of the John A. Volpe National Transportation Systems Center's Track Stability Research Program for the Federal Railroad Administration on thermal buckling of continuous welded rail (CWR) track and its prevention. Presented in this report are the developments of theoretical results and the development and application of the CWR-SAFE computer software model for prediction of CWR track  Read more...
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Details

Genre/Form: Ebook
Material Type: Document, Government publication, National government publication, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Andrew Kish; G Samavedam; United States. Federal Railroad Administration. Office of Research and Development,; John A. Volpe National Transportation Systems Center (U.S.); Foster-Miller.
OCLC Number: 837602373
Notes: "Track systems safety."
Title from PDF cover page.
"March 2013."
"DOT/FRA/ORD-13/16."
"Performing Organization Report Number: DDTS.020104".--Technical report documentation page.
"Performing Organization Name(s) and Address(es): U.S. Department of Transportation, Research and Innovative Technology Administration, John A. Volpe National Transportation Systems Center, Cambridge, MA 02142"--Technical report documentation page.
"Sponsoring/Monitoring Agency Name(s) and Address(es): U.S. Department of Transportation, Federal Railroad Administration, 1200 New Jersey Ave., SW, Washington, DC 20590"--Technical report documentation page.
"Supplementary Notes: [Gopal Samavedam of] Foster-Miller, Inc., 350 Second Avenue, Waltham, MA 02451-1196"--Technical report documentation page.
Description: 1 online resource ([168] pages) : illustrations
Details: System requirements: Adobe Acrobat Reader.; Mode of access: World Wide Web.
Responsibility: Author(s): Andrew Kish and Gopal Samavedam.

Abstract:

"Abstract: This report is part of the John A. Volpe National Transportation Systems Center's Track Stability Research Program for the Federal Railroad Administration on thermal buckling of continuous welded rail (CWR) track and its prevention. Presented in this report are the developments of theoretical results and the development and application of the CWR-SAFE computer software model for prediction of CWR track buckling strength. This comprehensive predicitve model encompasses several different modules designed to perform both deterministic and probabilistic buckling analyses, based on the dynamic buckling theory previously validated by tests, and predicts safe limits for buckling prevention. The model accounts for all the important parameters influencing track buckling, such as rail size, curvature, lateral resistance, tie-ballast friction, fastener torsional and longitudinal resistances, track vertical stiffness, misalignment amplitude and wavelength, and vehicle parameters. Applications of the model are demonstrated through analyses of parametric sensitivity, development of buckling safety lmits in terms of safe and critical temperatures, and evaluation of annual probability of buckling occurrences for typical CWR line segments. The report also presents techniques to determine the input parameters for CWR-SAFE application and a practical methodology for CWR track safety monitoring. A risk-based approach is proposed to provide more flexibility to the industry in achieving a minimum number of annual buckles in a given territory and to provide science-based guidelines for improving slow order policies when operating at elevated rail temperatures."--Technical report documentation page.

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