Quantification of concrete railway sleeper bending moments using surface strain gauges

JR Edwards, Z Gao, HE Wolf, MS Dersch, Y Qian - Measurement, 2017 - Elsevier
As the use of concrete sleepers increases for heavy-haul freight railroad and rail transit
applications in North America, it is becoming more critical to quantify their flexural …

Characterization of the loading environment for shared-use railway superstructure in North America

B Van Dyk - 2015 - ideals.illinois.edu
A sustained increase in heavy axle loads and cumulative freight tonnages, coupled with
increased development of high speed passenger rail, is placing an increasing demand on …

Quantification of rail transit wheel loads and development of improved dynamic and impact loading factors for design

JR Edwards, A Cook, MS Dersch… - Proceedings of the …, 2018 - journals.sagepub.com
An increase in the number of rail transit track construction and rehabilitation projects in North
America has generated increased interest in optimizing the design of the track infrastructure …

Quantification of vertical, lateral, and longitudinal fastener demand in broken spike track: Inputs to mechanistic-empirical design

MS Dersch, M Trizotto, JR Edwards… - Proceedings of the …, 2022 - journals.sagepub.com
To address a recent challenge related to broken spikes in premium elastic fastening systems
that have led to at least ten derailments and require manual walking inspections as well as …

Adaptive prestressing system using shape memory alloys and conventional steel for concrete crossties

M Sung, B Andrawes - Smart Materials and Structures, 2021 - iopscience.iop.org
Typical railroad concrete crossties are prestressed with straight high strength steel (HSS)
reinforcement throughout the length of the tie, which could lead to end splitting cracks and …

Analytical nonlinear modeling of rail and fastener longitudinal response

MS Dersch, MT Silva, JR Edwards… - Transportation …, 2022 - journals.sagepub.com
Comparatively little attention has been given to the quantification of fastener demands,
especially in the longitudinal direction. Research quantifying fastener demands is justified …

Quantification of prestressed concrete railway crosstie flexural response: implications for mechanistic design

JR Edwards - 2019 - ideals.illinois.edu
Concrete is the dominant crosstie material choice for demanding locations on heavy axle
load (HAL) freight railroads with steep grades, sharp curves, and high annual gross …

Quantifying bending moments in rail-transit concrete sleepers

J Riley Edwards, AE Canga Ruiz, AA Cook… - … Engineering, Part A …, 2018 - ascelibrary.org
With use of concrete sleepers increasing for rail-transit applications in the United States, it is
becoming more critical to quantify their revenue service flexural demands to improve sleeper …

Load characterization techniques and overview of loading environment in North America

BJ Van Dyk, MS Dersch, JR Edwards… - Transportation …, 2014 - journals.sagepub.com
In North America, many design guidelines for track components in shared-use railway
infrastructure use historic wheel loads that may not necessarily be representative of those …

Field test program of the concrete crosstie and fastening system

J Grasse - 2013 - ideals.illinois.edu
To adequately satisfy the demands placed on North America's railway infrastructure through
ever increasing freight tonnages and development of its high speed rail program, the design …