Evaluation of dynamic and impact wheel load factors and their application in design processes

Brandon J. Van Dyk1, J. Riley Edwards2, Marcus S. Dersch2, Conrad Ruppert2, Christopher P. L. Barkan2
1Vossloh Fastening Systems America Corporation, Chicago, USA
2Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, USA

Tóm tắt

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 railway infrastructures. Some of the most-critical areas of the infrastructure in need of further research are track components used in high-speed passenger, heavy haul and shared infrastructure applications. In North America, many design guidelines for these systems use historical wheel loads and design factors that may not necessarily be representative of the loading currently experienced on rail networks. Without a clear understanding of the nature of these loads and how design processes reflect them, it is impossible to adequately evaluate the superstructure in order to make design improvements. Therefore, researchers at the University of Illinois at Urbana-Champaign are conducting research to lay the groundwork for an improved and thorough understanding of the loading environment imparted into the track structure using wheel loads captured by wheel impact load detectors. This paper identifies several design factors that have been developed internationally, and evaluates their effectiveness based on wheel loads using several existing and new evaluative metrics. New design factors are also developed to represent the wheel-loading environment in a different manner. An evaluative approach to historical and innovative design methodologies will provide improvements to designs, based on actual loading experienced on today’s rail networks.

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Tài liệu tham khảo

Standards Australia International. Part 14: Prestressed Concrete Sleepers. Australian Standard, Railway Track Material, Sydney, Australia, 2003.

Andersson E, Berg M and Stichel S. Rail vehicle dynamics. Report no., 2013. Stockholm, Sweden: KTH, Royal Institute of Technology.

Kerr AD. Fundamentals of railway track engineering. Omaha, NE: Simmons-Boardman Books, 2003.

Doyle NF. Railway track design: a review of current practice. Report no., 1980. Melbourne, Australia: BHP.

Schramm G, 1961, Permanent way technique and permanent way economy

Prause RH, Meacham HC, Harrison HD, et al. Assessment of design tools and criteria for urban rail track structures. Washington, DC: Urban Mass Transportation Administration, Report no., 1974. Department of Transportation.

Sadeghi J, 2010, Int J Civil Engng, 8, 44

American Railway Engineering and Maintenance-of-Way Association, 2012, AREMA manual for railway engineering

McQueen PJ. Flexural performance requirements for prestressed concrete ties by factoring. Report no., 2010. San Rafael, CA: Philip J. McQueen Corporation.

Hay WW, 1953, Railroad engineering

Srinivasan M, 1969, Modern permanent way

Esveld C, 2001, Modern railway track

Birmann F, 1965, Proc IMechE, Conf Proc, 180, 77

Van Dyk BJ, Dersch MS, Edwards JR, et al. Quantifying shared corridor wheel loading variation using wheel impact load detectors. In: The 2013 joint rail conference, Knoxville, TN, 2013.

GeMeiner W. Workshop 139 - Leveraging of WILD vertical force data at Union Pacific. In: The Transportation Research Board Annual Meeting, Washington, DC: TRB, 9–13 January 2005.