Engineering studies on joint bar integrity, part II : finite element analysis

Carolan, Michael E.; Jeong, David Y.; Perlman, A. Benjamin

i

Engineering studies on joint bar integrity, part II : finite element analysis

2014-04-02
By Carolan, Michael E. ; Jeong, David Y. ; Perlman, A. Benjamin

File Language:

English

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Alternative Title:

Proceedings of the 2014 Joint Rail Conference, April 2-4, 2014, Colorado Springs, CO.
Creators:

Carolan, Michael E. ; Jeong, David Y. ; Perlman, A. Benjamin
Corporate Creators:

John A. Volpe National Transportation Systems Center (U.S.)
Subject/TRT Terms:
Publication/ Report Number:

JRC2014-3708
Resource Type:

In Proceedings
Geographical Coverage:

United States
Corporate Publisher:

American Society of Mechanical Engineers ; Institute of Electrical and Electronics Engineers ; American Society of Civil Engineers
Abstract:

This paper is the second in a two-part series describing ; research sponsored by the Federal Railroad Administration ; (FRA) to study the structural integrity of joint bars. In Part I, ; observations from field surveys of joint bar inspections ; conducted on revenue service track were presented 1. In this ; paper, finite element analyses are described to examine the ; structural performance of rail joints under various loading and ; tie-ballast support conditions. The primary purpose of these ; analyses is to help interpret and understand the observations ; from the field surveys. ; Moreover, the finite element analyses described in this ; paper are applied to conduct comparative studies and to assess ; the relative effect of various factors on the structural response ; of jointed rail to applied loads. Such factors include: discrete ; tie support (i.e. supported joint versus suspended joint with ; varying spans between effective ties), bolt pattern (four versus ; six bolts), initial bolt tension, and easement. In addition, results ; are shown for 90 lb rail joined with long-toe angle bars ; compared to 136 lb rail joined with standard short-toe joint ; bars.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/12038/dot_12038_DS1.pdf
File Type:

[PDF - 1.52 MB]
Collection(s):

Volpe Center
Main Document Checksum:

urn:sha-512:0a26b16821c1a436a6934c38b241ccdc0c9d31af2b0c2b11430ebbf0fd2ac38f0f8efcb352209ff17782bf9fb72c70413d59e97d2bfa85932d254b9f0bc25863

File Language:

English

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