Technical Reports

Improved Concrete Crosstie and Fastening Systems for US High Speed Passenger Rail and Joint Corridors: Volume 1 – Project Summary Report

  • 29
  • Nov
  • 2017
AUTHOR: Federal Railroad Administration
OFFICE: RPD
SUBOFFICE: RPD-31
REPORT NUMBER: DOT/FRA/ORD-17/23
SUBJECT: Freight Operations, Passenger Rail
KEYWORDS: Concrete crossties, fastening systems, flexural behavior, mechanistic design, infrastructure components, finite element modeling, field experimentation
ABSTRACT: Rail corridors often experience a wide variety of passenger and freight train loads, track geometry characteristics, and environmental conditions. These factors must be considered when developing an “optimized” concrete crosstie and fastening system capable of performing under a wide range of service conditions. This project used basic and applied research and experimentation to address the need for an improved railway crosstie and fastening system for high speed passenger and joint passenger and freight routes in the US. The effort provided answers to a number of concrete crosstie and fastening system design and performance questions that apply to the US railroad industry. The results obtained from this effort will provide the rail industry with a better understanding of the factors that affect the performance of concrete crossties and fastening systems, an improved set of performance requirements for tie and fastener system design based on field and laboratory data, and a novel, mechanistic design approach to tie and fastener design. Volume 1 (the Project Summary Report) summarizes the activities and results from this research project. A separate Volume 2 provides further detailed information regarding the major tasks completed for this project.

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