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Comment published on 21 February 2017, see Infrastructures 2017, 2(1), 4.

Open AccessTechnical Note
Infrastructures 2017, 2(1), 3; doi:10.3390/infrastructures2010003

Toughness of Railroad Concrete Crossties with Holes and Web Openings

1
Department of Civil Engineering, School of Engineering, The University of Birmingham, Edgbaston B15 2TT, UK
2
Birmingham Centre for Railway Research and Education, School of Engineering, The University of Birmingham, Edgbaston B15 2TT, UK
3
School of Civil, Mining, and Environmental Engineering, University of Wollongong, Northfield Ave, Wollongong, NSW 2522, Australia
4
Concrete Laboratory, Department of Civil Engineering, University of Tokyo, 7 Chome-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
*
Author to whom correspondence should be addressed.
Academic Editors: Higinio González Jorge and Pedro Arias-Sánchez
Received: 30 June 2016 / Revised: 20 December 2016 / Accepted: 6 January 2017 / Published: 11 January 2017
View Full-Text   |   Download PDF [5051 KB, uploaded 11 January 2017]   |  

Abstract

Prestressed concrete sleepers (or railroad ties) are principally designed in order to carry wheel loads from the rails to the ground of railway tracks, as well as to secure rail gauge for safe train travels. Their design takes into account static and dynamic loading conditions. In spite of prestressed concrete crossties being most commonly used in railway tracks, there have always been many demands from rail engineers to improve the serviceability and functionality of concrete crossties. For example, signaling, fiber optic, equipment cables are often damaged either by ballast corners or by the tamping machine. There has been a need to re-design concrete crossties to incorporate cables internally so that they would not experience detrimental or harsh environments. Also, many concrete crossties need a retrofit for an automatic train control device and similar signaling equipment. In contrast, the effects of holes and web openings on the structural capacity of concrete crossties have not been thoroughly investigated. This paper accordingly highlights the experimental investigations into the effect of holes and web openings on the toughness and ductility of concrete crossties. The key outcome of this research is to enable a better decision making process for retrofitting prestressed concrete crossties with holes and web openings in practice. View Full-Text
Keywords: concrete sleeper; crosstie; design standard; holes; web opening; railway infrastructure; static performance concrete sleeper; crosstie; design standard; holes; web opening; railway infrastructure; static performance
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MDPI and ACS Style

Gamage, E.K.; Kaewunruen, S.; Remennikov, A.M.; Ishida, T. Toughness of Railroad Concrete Crossties with Holes and Web Openings. Infrastructures 2017, 2, 3.

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