Lawrence, F.V., J.P. Cyre, C.P.L. Barkan and J. Kristan. 2003. Increasing Thermite Weld Fatigue Life Through Improvements in Weld Profile, TD 03-005. Association of American Railroads, Pueblo, CO.
Hockensmith, E., M. Schlauch and C.P.L. Barkan. 1994. A Review of Toxicity Characteristic Leaching Procedure Testing of Railroad Crossties, R-861. Association of American Railroads, Washington Systems Center, Washington, DC.
Gauger, K., R.E. Fronczak, M. Schlauch and C.P.L. Barkan. 1994. Selection and Use of Bioenhancement Products and Processes, R-860. Association of American Railroads, Washington Systems Center, Washington, DC.
Ronning, T. and C.P.L. Barkan. 1996. Environmental Aspects of Railroad Locomotive Coolant Discharge, R-900. Association of American Railroads, Washington, DC, p. 66.
Chen, Z., M. Shin and B.O. Andrawes. 2013. Finite Element Modeling of the Fastening Systems and Concrete Sleepers in North America. In: Proceedings of the 10th International Heavy Haul Association Conference. New Delhi, India.
Grasse, J., D.A. Lange, S. Wei and D.A. Kuchma. 2013. Field Testing of Concrete Sleepers and Fastener Systems for the Understanding of Mechanistic Behavior. In: Proceedings of the 10th International Heavy Haul Association Conference. New Delhi, India.
Yin, H., Y. Qian, J.R. Edwards and K. Zhu. 2018. Investigation of Relationship between Train Speed and Bolted Rail Joint Fatigue Life Using Finite Element Analysis. In: Proceedings of Transportation Research Board 97th Annual Conference. Washington, DC. doi:10.1177/0361198118784382.
Reducing the allowable operating speed or placing temporary speed restrictions are common practices to 2 prevent further damage to the track when defects are detected related to certain track components. However, the speeds chosen for restricted operation are typically based on past experience without considering the magnitude of the impact load around the rail joints.…
Bastos, J.C., A. Alvarez Reyes, M.S. Dersch, J.R. Edwards and C.P.L. Barkan. 2018. Laboratory Characterization of Structural Capacity of North American Heavy Haul Concrete Crossties. In: Proceedings of Transportation Research Board 97th Annual Conference. Washington, DC. doi:10.1177/0361198118782250.
Over the past few decades, the use of concrete crossties in North America has increased as a high-performance alternative to timber crossties, especially in heavy-haul freight and higher speed rail corridors. To accommodate heavier axle-loads and prevent center cracking, railroads and suppliers have consistently increased the bending moment thresholds that a crosstie must withstand, leading…
Holder, B.G.J., Y. Qian, M.S. Dersch and J.R. Edwards. 2017. Lateral Load Performance of Concrete Sleeper Fastening Systems Under Non-ideal Conditions. In: Proceedings of the 11th International Heavy Haul Association Conference. Cape Town, South Africa.
The fastening system is an essential component of the track superstructure that facilitates load transfer from the rail to the sleeper while holding the rail in place. Previous research has focused on investigating the performance of different fastening systems under laboratory and field loading environments when the fastening systems are properly installed. However, with the…
Bastos, J.C., A. Alvarez Reyes, M.S. Dersch and J.R. Edwards. 2017. Development of a New Load-deflection Method for Characterization of North American Heavy Haul Concrete Sleepers. In: Proceedings of the 11th International Heavy Haul Association Conference. Cape Town, South Africa.
Over the past few decades, the use of concrete sleepers in North America has increased as a high-performance alternative to timber sleepers, especially in heavy-haul freight corridors. In order to accommodate heavier axle-loads and prevent center cracking, railroads and suppliers have consistently increased the center bending moment threshold that a sleeper must withstand, leading to…
Canga Ruiz, A.E., M.V. Csenge, J.R. Edwards, Y. Qian and M.S. Dersch. 2017. Quantification of Rail Displacements Under Light Rail Transit Field Loading Conditions. In: Proceedings of the 2017 Joint Rail Conference. Philadelphia, PA. doi:10.1115/JRC2017-2277.
While timber crossties are widely used in North America, the popularity of concrete crossties has increased significantly in recent years. Concrete crossties require the use of premium elastic fastening systems to have a proper and stable system. The primary role of fastening system is to attach the rail to its support preserving track geometry. For…
Sehgal, L., A. Garg, V. Sehgal and W. Buttlar. 2017. Hot Mix Asphalt in Ballasted Railway Track: International Experience and Inferences. In: Institution of Permanent Way Engineers International Technical Seminar. Mumbai, India.
Qian, Y., D. Mishra, E. Tutumluer, Y.M.A. Hashash and J. Ghaboussi. 2016. Moisture Effects on Degraded Ballast Shear Strength Behavior. In: Proceedings of the 2016 Joint Rail Conference. Columbia, SC. doi:10.1115/JRC2016-5840.
Pokharel, S.K., J. Han, R.L. Parsons, Y. Qian, D. Leshchinsky and I. Halahmi. 2009. Experimental Study on Bearing Capacity of Geocell-reinforced Bases. In: 8th International Conference on Bearing Capacity of Roads, Railways and Airfields. Champaign, IL. doi:10.1201/9780203865286.ch122.
Qian, Y., J. Han, S.K. Pokharel and R.L. Parsons. 2011. Determination of Resilient Modulus of Subgrade Using Cyclic Plate Loading Tests. In: Geo-Frontiers 2011, ASCE Geo-Institute. Dallas, TX.
Qian, Y., J. Han, S.K. Pokharel and R.L. Parsons. 2010. Experimental Study on Triaxial Geogrid-Reinforced Bases over Weak Subgrade under Cyclic Loading. In: ASCE Geo-Institute, Geotechnical Special Publication No. 199. West Palm Beach, FL.
Mishra, D., Y. Qian, E. Tutumluer and H. Huang. 2013. An Integrated Approach to Dynamic Analysis of Railroad Track Transitions Behavior. In: 6th International Symposium on Environmental Vibration. Shanghai, China. doi:10.1016/j.trgeo.2014.07.001.
Qian, Y., D. Mishra, E. Tutumluer and J. Kwon. 2013. Discrete Element Modeling of Ballast Reinforced with Triangular Aperture Geogrid. In: 9th International Conference on Bearing Capacity of Roads, Railways and Airfields. Trondeim, Norway.
Qian, Y., E. Tutumluer, D. Mishra and H. Kazmee. 2014. Behavior of Geogrid Reinforced Ballast at Different Levels of Degradation. In: GeoShanghai International Conference. Shanghai, China.
Moaveni, M., Y. Qian, H. Boler and E. Tutumluer. 2014. Investigation of Ballast Degradation and Fouling Trends Using Image Analysis. In: Second International Conference on Railway Technology: Research, Development and Maintenance. Ajaccio, Corsica, France.
Qian, Y., E. Tutumluer, Y.M.A. Hashash and J. Ghaboussi. 2014. Effects of Ballast Degradation on Permanent Deformation Behavior from Large-scale Triaxial Tests. In: Proceedings of the 2014 Joint Rail Conference. Colorado Springs, CO.