Determining Track-Induced Lateral Thermal Expansion Forces on a Curved Railway Bridge

Musazay, Jubair Ahmad; Zarembski, Allan M.; Palese, Joseph W

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Determining Track-Induced Lateral Thermal Expansion Forces on a Curved Railway Bridge

2020-10-05
By Musazay, Jubair Ahmad ; Zarembski, Allan M. ; Palese, Joseph W

File Language:

English

Details

Creators:

Musazay, Jubair Ahmad ; Zarembski, Allan M. ; Palese, Joseph W
Corporate Creators:

University of Delaware. Department of Civil and Environmental Engineering ; University Transportation Center on Improving Rail Transportation Infrastructure Sustainability and Durability. USDOT Tier 1
Corporate Contributors:

United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
Subject/TRT Terms:
Publication/ Report Number:

RailTEAM UD-10
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

University of Nevada. University Transportation Center on Improving Rail Transportation Infrastructure Sustainability and Durability
Abstract:

This research studies the development of lateral thermal expansion forces on a curved railway track in general and specifically when the curved track is located on a railway bridge. Geometric alignment of railways often requires railway tracks to be curved for alignment of the right of way as well as safety and ride quality. This curvature is usually defined either by a radius of curvature or by a corresponding degree of curvature. Curved tracks constitute a higher level of complexity in the track’s analysis and design process. Particularly, the presence of curvature on the track introduces multiple sources of force in the lateral (radial) direction, including, but not limited to, lateral thermal expansion, centrifugal action, lateral components of vertical loads, hunting and nosing effects of locomotives, and vehicle curving dynamics. When a curved railway track is constructed on the ground like most curved tracks are, these forces are absorbed by the ballast shoulder and tie-ballast friction or interlocking.
Format:

PDF
Funding:

69A3551747132
Download URL:

https://rosap.ntl.bts.gov/view/dot/82320/dot_82320_DS1.pdf
File Type:

[PDF - 4.66 MB]
Collection(s):

University Transportation Centers
Main Document Checksum:

urn:sha-512:77f47028c436f249de3439c65e90cfbfd7040d9459fbf98cb86e1fd4a964025cf292c71ad238b1ca25456e4433ba05bc650ddbe20e5a35eba799b9b228d706d3

File Language:

English

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